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wimax (802.16)
(1060 results)-
Whitepapers
A Routing Protocol for Wireless Mesh Networks
Aug 2007
In this paper, the authors propose and develop a new simple routing protocol for wireless mesh network. This protocol, called Multipath Parallel Routing Protocol MPRP, is a reactive, distance...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
QoS Differentiation Adaptive Retransmission Limits ARQ for IEEE 802.16e BWA System
Aug 2007
In this paper, a QoS Differentiation Adaptive Retransmission Limits ARQ (QDARL-ARQ) is proposed to improve the efficiency of retransmission in conventional SR-ARQ for the IEEE 802.16e BWA systems....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Cross-Layer Fast Handover Scheme for Mobile WiMAX
Aug 2007
The Mobile WiMAX standard (IEEE 802.16e-2005) brings wireless broadband to a new level due to the support of nomadism. Still, handover latency in Mobile WiMAX is an issue that may affect real-time...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Exploiting Spectral Reuse in Resource Allocation, Scheduling, and Routing for IEEE 802.16 Mesh Networks
Aug 2007
The IEEE 802.16 standard for Wireless Metropolitan Area Networks (WMAN) has been created to meet the need of wide-range broadband wireless access at low cost. The objective of this paper is to...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An Efficient ARQ Mechanism in Multi-Hop Relay Systems Based on IEEE 802.16 OFDMA
Aug 2007
A Mobile Multi-hop Relay (MMR) Task Group was created to achieve coverage extension and throughput enhancement by introducing a Relay Station (RS) in the IEEE 802.16 system. If the RS is...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Local Interference Coordination in Cellular OFDMA Networks
Aug 2007
Orthogonal Frequency Division Multiple Access (OFDMA) is a promising concept, which is the basis of the currently emerging 802.16e (WiMax) and 3GPP Long Term Evolution (LTE) cellular systems....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Bandwidth Allocation and Recovery for Uplink Access in IEEE 802.16 Broadband Wireless Networks
Aug 2007
IEEE 802.16 was created to meet the need of high-speed wireless access in metropolitan-scale areas. Due to air interference and dynamic queue state changes in subscriber stations, the idling...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of Piggyback Requests in IEEE 802.16
Aug 2007
WiMAX (Worldwide Interoperability for Microwave Access) is a wireless access technology that aims to provide last mile wireless broadband access for fixed and mobile users as an alternative to the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Enhancement of IEEE 802.16 WirelessMAN Ranging Performance With EIED Backoff Algorithm
Aug 2007
EIED back-off algorithm was proposed in to enhance the performance of the IEEE 802.11 DCF. EIED provides significant performance improvement without additional complexity. In this paper, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Orthogonal Frequency Division Multiple Access in WiMAX and LTE - A Comparison
Dec 2009
Orthogonal Frequency Division Multiple Access (OFDMA) has been adopted by all the proposals which have been considered for the Fourth Generation (4G) wireless technologies. Specifically, the two...
Provided by Anna University
-
Whitepapers
Evaluation of UWB Interference on WiMAX
Nov 2011
This paper describes the analysis of UWB interference on WiMax systems. Co-existence between these two systems is important due to unlicensed use of 3.1 to 10.6 GHz frequency band by UWB. The...
Provided by IOSR Journal of Engineering
-
Whitepapers
Downlink Channel Estimation Model for 802.16e OFDMA System
Aug 2008
In 802.16e OFDMA systems, noise and co-channel interference on pilots degrade the accuracy of Channel State Information (CSI) obtained from Channel Estimation (CE) and system performance is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Iterative Channel Estimation Method Using Superimposed Training in OFDM Systems
Aug 2008
In this paper, an iterative time domain Least Squares (LS) based channel estimation method using Superimposed Training (ST) for an Orthogonal Frequency Division Multiplexing (OFDM) system over...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Dynamic Admission Control and Bandwidth Reservation for IEEE 802.16e Mobile WiMAX Networks
Apr 2012
The paper presents a dynamic Connection Admission Control (CAC) and Bandwidth Reservation (BR) scheme for IEEE 802.16e broadband wireless access networks to simultaneously improve the utilization...
Provided by EURASIP
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Whitepapers
Region Coordination Across Space Division Multiple Access Enhanced Base Stations in IEEE 802.16m Systems
Dec 2009
In recent years, smart antenna technologies are of ever-increasing interest to boost the capacity of future wireless systems. Several standards support these techniques such as the Wireless...
Provided by RWSoftware
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Whitepapers
Inter-Relay Handoff in Two-Hop Relaying Networks with Highly Mobile Vehicles
Sep 2012
In multihop cellular networks, mobile users can communicate with the base stations via Relay Stations (RSs), and handoff between different RSs. This type of handoffs is referred to as inter-relay...
Provided by EURASIP
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Whitepapers
The Cross Layer RMPA Handover: A Reliable Mobility Pattern Aware Handover Strategy for Broadband Wireless Communication in a High-Speed Railway Domain
Sep 2012
Enhancing the handover process in broadband wireless communication deployment has traditionally motivated many research initiatives. In a high-speed railway domain, the challenge is even greater....
Provided by EURASIP
-
Whitepapers
Industrial Wireless Sensor Networks: Channel Modeling and Performance Evaluation
Sep 2012
A complete dynamic wideband channel model for industrial wireless sensor network is presented. The model takes into account the noise, interferences, and heavy multipath propagation effects...
Provided by EURASIP
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Whitepapers
New Combined WiMAX/DSRC Infrastructure Design for Efficient Vehicular Networking
Aug 2012
In this paper, a new infrastructure of a combined Worldwide interoperability for Microwave Access (WiMAX) and Dedicated Short-Range Communications (DSRC) link layer is proposed with the purpose of...
Provided by EURASIP
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Whitepapers
Spectrum Load Smoothing in IEEE 802.16 Systems
Jun 2010
Today's framework for radio spectrum regulation and spectrum usage is undergoing fundamental changes. In the face of scarce radio resources, regulators, industry, and the research community are...
Provided by RWSoftware
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Whitepapers
Coordination Across Base Stations for Effective Control of Space Division Multiple Access Enhanced IEEE 802.16m Systems
Jul 2009
In recent years, smart antenna technologies are of ever-increasing interest to boost the capacity of existing and future wireless systems. Several standards support these techniques such as the...
Provided by RWSoftware
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Whitepapers
Performance Enhancement of TCP Using ECN and Snoop Protocol for Wi-Max Network
Aug 2010
Providing Internet services over wireless links has grown rapidly in recent years. TCP (Transmission Control Protocol) has been performing well over the traditional wired networks where packet...
Provided by International Journal of Computer Applications
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Whitepapers
Secure Key Management Protocol in WIMAX
Nov 2012
The Worldwide Interoperability for Microwave Access (WIMAX /IEEE 802.16), is new technology based on wireless metropolitan area network. Security of connections access in WIMAX /IEEE 802.16 is...
Provided by International Journal of Network Security
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Whitepapers
Two-Hop Relay-Based Vehicular Network in WiMAX
Sep 2012
In mobile communication, routing data through intermediate mobile node is a challenging task due to high mobility of nodes which causes rapid change in network topology and frequent disconnection...
Provided by International Journal of Computer Applications
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Whitepapers
Advance Handoff Requirements Schemes in Wimax and LTE Networks in Wireless Sensor Network
Dec 2012
The emerging technology, which allows high speed broadband wireless access, is the WiMAX technology which is based on the IEEE 802.16 family of standards. Mobile WiMAX (Worldwide Interoperability...
Provided by International Journal of Computer Applications
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Whitepapers
Comparative Performance Evaluation of TCP Variants in WiMAX (and WLANs) Network Configurations
Jan 2012
An important application for the IEEE 802.16 technology (also called WiMAX) is to provide high-speed access to the Internet where the Transmission Control Protocol (TCP) is the core transport...
Provided by Hindawi Publishing
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Whitepapers
A DiffServ Architecture for QoS-Aware Routing for Delay-Sensitive and Best-Effort Services in IEEE 802.16 Mesh Networks
Aug 2011
In today's networks, the widespread use of real-time traffic such as video and audio applications demand special service guarantee in terms of throughput, delay, and jitter, thus making Quality of...
Provided by Hindawi Publishing
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Whitepapers
WiFi and WiMAX Secure Deployments
Dec 2009
Wireless Broadband offers incredibly fast, "Always on" Internet similar to ADSL and sets the user free from the fixed access areas. In order to achieve these features standardisation was achieved...
Provided by Hindawi Publishing
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Whitepapers
Effect of AWGN & Fading (Raleigh & Rician) Channels on BER Performance of a WiMAX Communication System
Aug 2012
The emergence of WIMAX has attracted significant interests from all fields of wireless communications including students, researchers, system engineers and operators. The WIMAX can also be...
Provided by University of Queensland Union
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Whitepapers
Resource Allocation in Mobile WiMAX Network: An Optimal Approach
Nov 2012
In the last few years there has been significant growth in the area of wireless communication. IEEE 802.16/WiMAX is the network which is designed for providing high speed wide area broadband...
Provided by Cornell University
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Whitepapers
Network Coding as a WiMAX Link Reliability Mechanism
Aug 2012
The authors design and implement network-coding-enabled reliability architecture for next generation wireless networks. Their Network Coding (NC) architecture uses a flexible thread-based design,...
Provided by Rutgers CMD
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Whitepapers
WiMAX or Wi-Fi: The Best Suited Candidate Technology for Building Wireless Access Infrastructure
Jul 2007
With the help of many expert communication engineers IEEE has developed various wireless standards in a hierarchical fashion. Some of the deployed wireless standards are: 802.15 (Bluetooth),...
Provided by KTH
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Whitepapers
Investigation on IEEE 802.16m Networks Under Developed Error Model
Nov 2012
Contention based bandwidth request mechanism is suggested for best effort services in WiMAX networks. The design of contention mechanism depends on the error model that reflects the transmission...
Provided by International Journal of Computer Applications
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Whitepapers
MIMO Techniques in WiMAX and LTE: A Feature Overview
May 2010
IEEE 802.16m and 3GPP LTE-Advanced are the two evolving standards targeting 4G wireless systems. In both standards, multiple-input multiple-output antenna technologies play an essential role in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Evaluation of Parameters for Improving Handoff Performance in Mobile WiMAX Networks
Sep 2012
Mobile WiMAX is the latest technology that promises broadband wireless access over long distance. In order to support mobility and continuous network connectivity in mobile WiMAX, it is necessary...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
A Study on Resource Allocation Algorithms in Wireless Relay Networks
Nov 2012
In this paper, the multicast routing problem in wireless relay networks is considered. The resource allocation problem in IEEE 802.16j WIMAX Networks is discussed. The relay stations are used to...
Provided by International Journal of Computer Applications
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Whitepapers
Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel
Nov 2011
Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both...
Provided by tampanetmedia.com
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Whitepapers
A Practical Tree Algorithm With Successive Interference Cancellation for Delay Reduction in IEEE 802.16 Networks
Jun 2011
This paper thoroughly studies a modification of tree algorithm with successive interference cancellation. In particular, the authors focus on the algorithm throughput and account for a single...
Provided by Springer Healthcare
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Whitepapers
Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks
Jun 2010
Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an...
Provided by tampanetmedia.com
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Whitepapers
Overall Delay in IEEE 802.16 With Contention-Based Random Access
Jun 2009
In this paper, the authors address the overall message delay analysis of IEEE 802.16 wireless metropolitan area network with contention-based multiple access of bandwidth requests. The overall...
Provided by Springer Healthcare
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Whitepapers
A Survey of Rogue Base Station Attacks in WIMAX/IEEE802.16
Jan 2012
WIMAX (Worldwide Interoperability for Microwave Access)/IEEE 802.16 is a very promising technology. It is based on Wireless MAN technology. With the growing popularity of WIMAX, the security risks...
Provided by International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
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Whitepapers
A Survey for Load Balancing in Mobile WiMAX Networks
Mar 2012
Mobile Worldwide Interoperability for Microwave Access (Mobile WiMAX) is a wireless access technology based on IEEE 802.16e standard. Mobile WiMAX supports mobility, high utilization of radio...
Provided by Sharif University of Technology
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Whitepapers
Linear Dispersion Codes Selection Using WiMAX Over Uncorrelated MIMO Rayleigh Channel
Jun 2010
In this paper the combination of Transmit Antenna Selection with Linear Dispersion Code Selection is proposed and analyzed. The bit error rate metric criterion is proposed (bit error rate...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
Performance of a FilterBank MultiCarrier (FBMC) Physical Layer in the WiMAX Context
Sep 2010
This paper describes some of the outcome of the FP7 project PHYDYAS, whose main objective was to propose a new physical layer that will enable introduction of cognitive radios and dynamic access...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
A Reconfigurable Test Platform to Experiment With Wireless Heterogeneous Networks in a Laboratory
Nov 2009
A large number of wireless technologies and networks has been introduced in the telecommunication world during the last few years (e.g., GSM/GPRS, UMTS, HSPA, IEEE 802.11, IEEE 802.16, IEEE...
Provided by Inderscience Enterprises
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Whitepapers
Accurate Modelling of OFDMA Transmission Technique Using IEEE 802.16m Recommendations for WiMAX Network Simulator Design
Jul 2010
Worldwide Interoperability for Microwave Access (WiMAX) is the name selected by WiMAX Forum for referring to the standard defined by the IEEE 802.16 task force. The standard introduces several...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
A Real-Time FPGA-Based Implementation of a High-Performance MIMO-OFDM Mobile WiMAX Transmitter
Apr 2011
The Multiple Input Multiple Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM) is considered a key technology in modern wireless-access communication systems. The IEEE 802.16e...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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Whitepapers
Dealing With VoIP Calls During "Busy Hour" in LTE
Sep 2011
Long Term Evolution (LTE) is an evolving wireless standard developed by the 3rd Generation Partnership Project (3GPP) which, along with 3GPP HSPA+, 3GPP EDGE Evolution and Mobile WiMAX (IEEE...
Provided by Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
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White Papers
An Optimized Method for Scheduling Process of Scanning for Handover in Mobile Wimax
Feb 2010
IEEE 802.16e standard for 4G Cellular Technology-Mobile WiMAX is proposed to support mobility. As a result, handover has become one of the most important QoS factors. Because of lack of...
Provided by Islamic University of Technology
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White Papers
Modeling and Simulation of Power Saving Mechanism for IEEE 802.16e Mobile WiMAX
Dec 2011
In order to reduce the power consumption of a mobile station, IEEE802.16e introduced the sleep mode to extend the standby time of battery-powered mobile stations. However, existing mainstream...
Provided by AICIT
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White Papers
Integration of WLAN and WiMAX With Base Station Assisted QoS Provisioning
Oct 2011
IEEE 802.11 is the WLAN standard for providing moderate to high speed data communication in a short range generally within a building. IEEE 802.16 (WiMAX) is the standard for broadband WMANs that...
Provided by AICIT
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White Papers
Analysis and Literature Review of IEEE 802.16e (Mobile WiMAX) Security
Feb 2012
IEEE802.16e or Mobile WiMAX, where WiMAX stands on Worldwide Interoperability for Microwave Access, is one of the latest technologies in the Wire-Less World. The main goal of WiMAX is to deliver...
Provided by International Journal of Engineering and Advanced Technology (IJEAT)
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White Papers
Prevention of Security Threats in IEEE 802.16 Standards
Sep 2011
The WiMAX IEEE 802.16 (e) is defined as the Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in April 2001 to promote conformance and interoperability of the IEEE 802.16...
Provided by International Journal of Soft Computing and Engineering (IJSCE)
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White Papers
An Enhanced Authentication Mechanism for IEEE 802.16(e) Mobile Wimax
Sep 2011
Security is amongst one of the major issues in Broadband Wireless Access (BWA) Networks. After the launch of the IEEE 802.16 standard (WiMAX), a number of security issues were reported in several...
Provided by International Journal of Soft Computing and Engineering (IJSCE)
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White Papers
Performance Analysis of IEEE 802.16d Using Forward Error Correction
Mar 2011
The rapid growth of wireless internet causes a demand for high-speed access to the World Wide Web. To serve the demand for access to the internet "Anywhere any time" and ensure quality of service,...
Provided by Science Publications
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Whitepapers
How to Protect Online Banking Customers from Man in the Browser attacks like Zeus
Feb 2012
Online Banking is a growing soft target for crime. As 24/7 online banking has grown in popularity, consumers are using inherently vulnerable end user devices such as personal computers and smart...
Provided by Wontok
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White Papers
Security Issues in Distributed Multihop WiMAX Networks
May 2012
In this paper, the authors study the existing standards in multihop WiMAX networks and their security issues. For secured communications, it is necessary to have hop-by-hop authentication for any...
Provided by Universal Association of Computer and Electronics Engineers
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White Papers
Location Based Performance of WiMAX Network for QoS With Optimal Base Stations (BS)
Jul 2011
In this paper, the authors are given concept of their WiMAX (Worldwide Interoperability for Microwave Access) network performance for QoS monitoring and optimization solution for BS (Base Station)...
Provided by Scientific Research
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White Papers
Path Selection in WiMAX Networks With Mobile Relay Stations
Jul 2011
Introduction of mobile relays into networks based on IEEE 802.16 standard brings new challenges. The paper proposes signaling mechanism for acquisition of channel state information for mobile...
Provided by IARIA
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White Papers
Performance Optimization With Efficient Polling Mechanism in IEEE 802.16 Networks With Cross-Layer Consideration
Jul 2009
IEEE 802.16 standard suite defines a reservation-based bandwidth allocation mechanism. A SS (Subscriber Station) has to be polled to request bandwidth reservation before transmits uplink data to a...
Provided by Springer Science+Business Media
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White Papers
Performance Analysis of Best-Effort Service in Saturated IEEE 802.16 Networks
Aug 2009
The IEEE 802.16 standard is a promising technology for the fourth-generation mobile networks and is being actively promoted by the WiMAX Forum, an industry-led consortium. Among the various...
Provided by City University of Hong Kong
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White Papers
Puzzle Based Approach for Solving Denial of Service Attack in Mobile WIMAX
Apr 2012
Mobile WiMAX or IEEE 802.16e gives the access of Broadband Wireless even when the station is moving. But, as always Wireless environment is more open to threats; various threats exist over Mobile...
Provided by Academy & Industry Research Collaboration Center
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White Papers
Broadband Wireless Networks-DoS Attacks & Challenges
Jan 2012
Broadband Wireless Networks are providing Internet and other services to end users. IEEE 802.11, IEEE 802.16 & Wireless Mesh Network are regarded as the most important Broadband Wireless...
Provided by International Association of Engineers
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White Papers
Performance Analysis of WiMAX Physical Layer for Various Modulation Schemes
Jan 2012
The Worldwide interoperability for microwave access (WiMAX) based on IEEE 802.16, has been one of the most important technologies in communication networks providing voice, data and video services...
Provided by International Association of Engineers
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White Papers
An Interference and QoS Aware Distributed Scheduling Approach for Hybrid IEEE 802.16E Mesh Networks
Oct 2008
A distributed scheduling approach for fast deployable tactical IEEE 802.16e networks is presented where distributed base stations with dual radios form a mesh backhaul and mobile battle units...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Comparision of Qos Stability Methods in Wimax Networks
Aug 2010
Recently IEEE 802.16 WiMAX has attracted a lot of attention in wireless networking research and applications. An attempt had been made to compare DropTail, RED, Proportional fairness and DRR...
Provided by International Journal of Computer Science and Information Technologies
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White Papers
A Survey on Cooperative Diversity and Its Applications in Various Wireless Networks
Nov 2011
Cooperative diversity is a technique in which various radio terminals relay signals for each other. Cooperative diversity results when cooperative communications is used primarily to leverage the...
Provided by Mody Institute of Technology and Science
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White Papers
Increasing Wireless Revenue With Service Differentiation
Jun 2007
New technologies such as IEEE 802.16 (Wi-MAX) and IEEE 802.11e (Wi-Fi with QoS) enable differentiated services. In this paper, the authors explore the potential for increasing the revenue of...
Provided by University of California
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White Papers
Network Formation Games Among Relay Stations in Next Generation Wireless Networks
Feb 2012
The introduction of Relay Station (RS) nodes is a key feature in next generation wireless networks such as 3GPP's Long Term Evolution Advanced (LTE-Advanced), or the forthcoming IEEE 802.16j WiMAX...
Provided by Princeton University
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White Papers
Performance Analysis of Push-to-Talk Over IEEE 802.16e With Sleep Mode and Idle Mode
May 2010
The authors investigate how much power saving can be achieved for a Push-To-Talk (PTT) service by employing sleep mode and idle mode in the IEEE 802.16e. In this paper, a mobile station by...
Provided by Springer Science+Business Media
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White Papers
A Hybrid CAC Algorithm for Maximizing Downlink Capacity of M-WiMAX Systems
Nov 2010
Due to the implementation of an Adaptive Modulation-Coding (AMC) mechanism in the 802.16e physical layer, each connection's bandwidth requirements cannot be statically computed, but they derive as...
Provided by Springer Science+Business Media
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White Papers
Evaluation of Joint Sleep and Idle Mode in IEEE 802.16e WIMAX
Mar 2012
As energy availability limits usage time for mobile devices, modern wireless systems implement Power Saving Mechanisms (PSMs). Determining optimal PSM parameters and switch points when applying...
Provided by International Journal of Computer Science Issues
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White Papers
A Survey of Mobile WiMAX IEEE 802.16m Standard
Apr 2010
IEEE 802.16m amends the IEEE 802.16 Wireless MAN-OFDMA specification to provide an advanced air interface for operation in licensed bands. It will meet the cellular layer requirements of...
Provided by Sardar Vallabhbhai National Institute Of Technology
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White Papers
A Compact Dual Band Planar RMSA for WLAN/WIMAX Applications
Jan 2012
The Presentation of a compact dual band planar Rectangular MicroStrip Antenna (RMSA) antenna for a WLAN (2.4GHz IEEE standards 802.11b/g)/WiMAX (2.6GHz IEEE standards802.16e) applications. The two...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
Cross-Layer Based Qos Routing Protocol Analysis Based on Nodes for 802.16 Wimax Networks
Sep 2011
A cross-layer framework to favor the video-on-demand service in multi-hop WiMax mesh networks. This will guarantee that the required data rate is achieved for video streams, which is crucial for...
Provided by International Journal of Advances in Engineering & Technology (IJAET)
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White Papers
Exploiting OFDM Systems for Covert Communication
Oct 2010
Both Long Term Evolution (LTE) and WiMAX (802.16) 4th Generation wireless systems (4G) utilize Orthogonal Frequency Division Multiplexing (OFDM) on the down-link. The advantages of OFDM over other...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Full-Rate Full-Diversity 2 × 2 Space-Time Codes of Reduced Decoder Complexity
Dec 2007
Multiple-Input Multiple-Output (MIMO) techniques have become an essential part of broadband wireless communications systems. For example, the recently developed IEEE 802.16e specifications for...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
FAST: A Fuzzy-Based Adaptive Scheduling Technique for IEEE 802.16 Networks
Jan 2011
Since the IEEE 802.16 first standard was proposed in 2004 to provide broadband wireless service, the standard has not only been widely studied, but also broadly commercialized. The current IEEE...
Provided by Pohang University of Science And Technology
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White Papers
Improving the Bandwidth Utilization by Recycling the Unused Bandwidth in IEEE 802.16 Networks
Apr 2012
The Physical and MAC layers have been specified in IEEE 802.16 networks. The quality of service is ensured by the bandwidth reservation. The subscriber station should reserve the bandwidth more...
Provided by Adhiyamaan College of Engineering
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White Papers
Dynamic End-to-End Capacity in IEEE 802.16 Wireless Mesh Networks
Feb 2010
The IEEE 802.16 standard defines mesh mode as one of its two operational modes in Medium Access Control (MAC). In the mesh mode, peer-to-peer communication between Subscriber Stations (SSs) is...
Provided by Reed Elsevier
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Whitepapers
A Cross-Layer Fast Handover Scheme for Mobile WiMAX
Aug 2007
The Mobile WiMAX standard (IEEE 802.16e-2005) brings wireless broadband to a new level due to the support of nomadism. Still, handover latency in Mobile WiMAX is an issue that may affect real-time...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Exploiting Spectral Reuse in Resource Allocation, Scheduling, and Routing for IEEE 802.16 Mesh Networks
Aug 2007
The IEEE 802.16 standard for Wireless Metropolitan Area Networks (WMAN) has been created to meet the need of wide-range broadband wireless access at low cost. The objective of this paper is to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Efficient ARQ Mechanism in Multi-Hop Relay Systems Based on IEEE 802.16 OFDMA
Aug 2007
A Mobile Multi-hop Relay (MMR) Task Group was created to achieve coverage extension and throughput enhancement by introducing a Relay Station (RS) in the IEEE 802.16 system. If the RS is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Local Interference Coordination in Cellular OFDMA Networks
Aug 2007
Orthogonal Frequency Division Multiple Access (OFDMA) is a promising concept, which is the basis of the currently emerging 802.16e (WiMax) and 3GPP Long Term Evolution (LTE) cellular systems....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Bandwidth Allocation and Recovery for Uplink Access in IEEE 802.16 Broadband Wireless Networks
Aug 2007
IEEE 802.16 was created to meet the need of high-speed wireless access in metropolitan-scale areas. Due to air interference and dynamic queue state changes in subscriber stations, the idling...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of Piggyback Requests in IEEE 802.16
Aug 2007
WiMAX (Worldwide Interoperability for Microwave Access) is a wireless access technology that aims to provide last mile wireless broadband access for fixed and mobile users as an alternative to the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Enhancement of IEEE 802.16 WirelessMAN Ranging Performance With EIED Backoff Algorithm
Aug 2007
EIED back-off algorithm was proposed in to enhance the performance of the IEEE 802.11 DCF. EIED provides significant performance improvement without additional complexity. In this paper, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Orthogonal Frequency Division Multiple Access in WiMAX and LTE - A Comparison
Dec 2009
Orthogonal Frequency Division Multiple Access (OFDMA) has been adopted by all the proposals which have been considered for the Fourth Generation (4G) wireless technologies. Specifically, the two...
Provided by Anna University
-
Whitepapers
Evaluation of UWB Interference on WiMAX
Nov 2011
This paper describes the analysis of UWB interference on WiMax systems. Co-existence between these two systems is important due to unlicensed use of 3.1 to 10.6 GHz frequency band by UWB. The...
Provided by IOSR Journal of Engineering
-
Whitepapers
Downlink Channel Estimation Model for 802.16e OFDMA System
Aug 2008
In 802.16e OFDMA systems, noise and co-channel interference on pilots degrade the accuracy of Channel State Information (CSI) obtained from Channel Estimation (CE) and system performance is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Iterative Channel Estimation Method Using Superimposed Training in OFDM Systems
Aug 2008
In this paper, an iterative time domain Least Squares (LS) based channel estimation method using Superimposed Training (ST) for an Orthogonal Frequency Division Multiplexing (OFDM) system over...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Dynamic Admission Control and Bandwidth Reservation for IEEE 802.16e Mobile WiMAX Networks
Apr 2012
The paper presents a dynamic Connection Admission Control (CAC) and Bandwidth Reservation (BR) scheme for IEEE 802.16e broadband wireless access networks to simultaneously improve the utilization...
Provided by EURASIP
-
Whitepapers
Region Coordination Across Space Division Multiple Access Enhanced Base Stations in IEEE 802.16m Systems
Dec 2009
In recent years, smart antenna technologies are of ever-increasing interest to boost the capacity of future wireless systems. Several standards support these techniques such as the Wireless...
Provided by RWSoftware
-
Whitepapers
Inter-Relay Handoff in Two-Hop Relaying Networks with Highly Mobile Vehicles
Sep 2012
In multihop cellular networks, mobile users can communicate with the base stations via Relay Stations (RSs), and handoff between different RSs. This type of handoffs is referred to as inter-relay...
Provided by EURASIP
-
Whitepapers
The Cross Layer RMPA Handover: A Reliable Mobility Pattern Aware Handover Strategy for Broadband Wireless Communication in a High-Speed Railway Domain
Sep 2012
Enhancing the handover process in broadband wireless communication deployment has traditionally motivated many research initiatives. In a high-speed railway domain, the challenge is even greater....
Provided by EURASIP
-
Whitepapers
Industrial Wireless Sensor Networks: Channel Modeling and Performance Evaluation
Sep 2012
A complete dynamic wideband channel model for industrial wireless sensor network is presented. The model takes into account the noise, interferences, and heavy multipath propagation effects...
Provided by EURASIP
-
Whitepapers
New Combined WiMAX/DSRC Infrastructure Design for Efficient Vehicular Networking
Aug 2012
In this paper, a new infrastructure of a combined Worldwide interoperability for Microwave Access (WiMAX) and Dedicated Short-Range Communications (DSRC) link layer is proposed with the purpose of...
Provided by EURASIP
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Whitepapers
Spectrum Load Smoothing in IEEE 802.16 Systems
Jun 2010
Today's framework for radio spectrum regulation and spectrum usage is undergoing fundamental changes. In the face of scarce radio resources, regulators, industry, and the research community are...
Provided by RWSoftware
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Whitepapers
Coordination Across Base Stations for Effective Control of Space Division Multiple Access Enhanced IEEE 802.16m Systems
Jul 2009
In recent years, smart antenna technologies are of ever-increasing interest to boost the capacity of existing and future wireless systems. Several standards support these techniques such as the...
Provided by RWSoftware
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Whitepapers
Performance Enhancement of TCP Using ECN and Snoop Protocol for Wi-Max Network
Aug 2010
Providing Internet services over wireless links has grown rapidly in recent years. TCP (Transmission Control Protocol) has been performing well over the traditional wired networks where packet...
Provided by International Journal of Computer Applications
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Whitepapers
Secure Key Management Protocol in WIMAX
Nov 2012
The Worldwide Interoperability for Microwave Access (WIMAX /IEEE 802.16), is new technology based on wireless metropolitan area network. Security of connections access in WIMAX /IEEE 802.16 is...
Provided by International Journal of Network Security
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Whitepapers
Two-Hop Relay-Based Vehicular Network in WiMAX
Sep 2012
In mobile communication, routing data through intermediate mobile node is a challenging task due to high mobility of nodes which causes rapid change in network topology and frequent disconnection...
Provided by International Journal of Computer Applications
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Whitepapers
Advance Handoff Requirements Schemes in Wimax and LTE Networks in Wireless Sensor Network
Dec 2012
The emerging technology, which allows high speed broadband wireless access, is the WiMAX technology which is based on the IEEE 802.16 family of standards. Mobile WiMAX (Worldwide Interoperability...
Provided by International Journal of Computer Applications
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Whitepapers
Comparative Performance Evaluation of TCP Variants in WiMAX (and WLANs) Network Configurations
Jan 2012
An important application for the IEEE 802.16 technology (also called WiMAX) is to provide high-speed access to the Internet where the Transmission Control Protocol (TCP) is the core transport...
Provided by Hindawi Publishing
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Whitepapers
A DiffServ Architecture for QoS-Aware Routing for Delay-Sensitive and Best-Effort Services in IEEE 802.16 Mesh Networks
Aug 2011
In today's networks, the widespread use of real-time traffic such as video and audio applications demand special service guarantee in terms of throughput, delay, and jitter, thus making Quality of...
Provided by Hindawi Publishing
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Whitepapers
WiFi and WiMAX Secure Deployments
Dec 2009
Wireless Broadband offers incredibly fast, "Always on" Internet similar to ADSL and sets the user free from the fixed access areas. In order to achieve these features standardisation was achieved...
Provided by Hindawi Publishing
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Whitepapers
Effect of AWGN & Fading (Raleigh & Rician) Channels on BER Performance of a WiMAX Communication System
Aug 2012
The emergence of WIMAX has attracted significant interests from all fields of wireless communications including students, researchers, system engineers and operators. The WIMAX can also be...
Provided by University of Queensland Union
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Whitepapers
Resource Allocation in Mobile WiMAX Network: An Optimal Approach
Nov 2012
In the last few years there has been significant growth in the area of wireless communication. IEEE 802.16/WiMAX is the network which is designed for providing high speed wide area broadband...
Provided by Cornell University
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Whitepapers
Network Coding as a WiMAX Link Reliability Mechanism
Aug 2012
The authors design and implement network-coding-enabled reliability architecture for next generation wireless networks. Their Network Coding (NC) architecture uses a flexible thread-based design,...
Provided by Rutgers CMD
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Whitepapers
WiMAX or Wi-Fi: The Best Suited Candidate Technology for Building Wireless Access Infrastructure
Jul 2007
With the help of many expert communication engineers IEEE has developed various wireless standards in a hierarchical fashion. Some of the deployed wireless standards are: 802.15 (Bluetooth),...
Provided by KTH
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Whitepapers
Investigation on IEEE 802.16m Networks Under Developed Error Model
Nov 2012
Contention based bandwidth request mechanism is suggested for best effort services in WiMAX networks. The design of contention mechanism depends on the error model that reflects the transmission...
Provided by International Journal of Computer Applications
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Whitepapers
MIMO Techniques in WiMAX and LTE: A Feature Overview
May 2010
IEEE 802.16m and 3GPP LTE-Advanced are the two evolving standards targeting 4G wireless systems. In both standards, multiple-input multiple-output antenna technologies play an essential role in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Evaluation of Parameters for Improving Handoff Performance in Mobile WiMAX Networks
Sep 2012
Mobile WiMAX is the latest technology that promises broadband wireless access over long distance. In order to support mobility and continuous network connectivity in mobile WiMAX, it is necessary...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
A Study on Resource Allocation Algorithms in Wireless Relay Networks
Nov 2012
In this paper, the multicast routing problem in wireless relay networks is considered. The resource allocation problem in IEEE 802.16j WIMAX Networks is discussed. The relay stations are used to...
Provided by International Journal of Computer Applications
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Whitepapers
Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel
Nov 2011
Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both...
Provided by tampanetmedia.com
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Whitepapers
A Practical Tree Algorithm With Successive Interference Cancellation for Delay Reduction in IEEE 802.16 Networks
Jun 2011
This paper thoroughly studies a modification of tree algorithm with successive interference cancellation. In particular, the authors focus on the algorithm throughput and account for a single...
Provided by Springer Healthcare
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Whitepapers
Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks
Jun 2010
Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an...
Provided by tampanetmedia.com
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Whitepapers
Overall Delay in IEEE 802.16 With Contention-Based Random Access
Jun 2009
In this paper, the authors address the overall message delay analysis of IEEE 802.16 wireless metropolitan area network with contention-based multiple access of bandwidth requests. The overall...
Provided by Springer Healthcare
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Whitepapers
IEEE 802.16m Energy-Efficient Sleep Mode Operation Analysis With Mean Delay Restriction
Aug 2009
IEEE 802.16 group of standards defines a high speed wireless access system with support for various multimedia services. The standard contains specifications of Media Access Control layer (MAC)...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Symmetric User Grouping for Multicast and Broadcast Polling in IEEE 802.16 Networks
Jan 2013
IEEE 802.16 standard provides a high-speed channel access to various multimedia services. It specifies both PHYsical (PHY) and Media Access Control (MAC) layers with a special emphasis on the...
Provided by State University of Aerospace Instrumentation
