- Subscribe to this page:
- RSS
- Email Alert
wimax (802.16)
(1060 results)-
Whitepapers
A Multimedia Traffic Scheduler for IEEE 802.16 Point-to-Multipoint Networks
Apr 2008
In this paper, the authors describe and evaluate an advanced traffic scheduler for IEEE 802.16 Point-to-Multipoint networks, referred to as "Colored Frame Registry Tree Scheduler" (CFRTS). The...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of UGS, RtPS, NrtPS Admission Control in WiMAX Networks
Apr 2008
IEEE 802.16 standard provides a broadband wireless access solution. WiMAX (Worldwide interpretability for microwave access) is the business definition of the 802.16-2004 amendment. In WiMAX,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Dynamic Resource Allocation in High Speed Mobile OFDMA System
Apr 2008
A novel dynamic resource allocation algorithm is proposed for matching the OFDMA system in high speed mobile environment, which suffers from high inter-carrier interference and large dynamic range...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QoS-Guaranteed Scheduling and Resource Allocation Algorithm for IEEE 802.16 OFDMA System
Apr 2008
For IEEE 802.16 Broadband Wireless Access (BWA) system, the support of QoS is of prime importance for providing various traffic profiles in wireless links. Scheduling and resource allocation play...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Antenna Selection for Next Generation IEEE 802.16 Mobile Stations
Apr 2008
The IEEE 802.16/WiMAX standard has fully embraced multi-antenna technology and can, thus, deliver robust and high transmission rates and higher system capacity. Nevertheless, due to its inherent...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of Weighted Proportional Fairness Scheduling in IEEE 802.16 Networks
Apr 2008
In IEEE 802.16 Networks, a Subscriber Station (SS) could be a single mobile user, a residence house, or an office building providing Internet service for multiple customers. Considering the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Receive Correlation-Based User Scheduling for Collaborative Spatial Multiplexing Systems
Apr 2008
In this paper, the authors propose a user scheduling scheme to maximize the ergodic capacity of multi-user MIMO uplink systems. The proposed scheduling scheme only considers the use of the receive...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Relay Station Placement in IEEE 802.16j Dual-Relay MMR Networks
Apr 2008
Cooperative relaying is one of the most effective techniques in coverage extension and capacity enhancement by virtue of spatial diversity. To fully explore the benefits of adopting Relay Stations...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Cross Layer Scheduling Algorithm for IEEE 802.16 Broadband Wireless Networks
Apr 2008
In order to support different types of user applications, the IEEE 802.16 standard defines different service classes together with their associated Quality of Service (QoS) parameters. However,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Block Based Channel Estimation Algorithms for OFDM-IEEE 802.16e (Mobile WiMAX) System
Jan 2011
This paper is to show the improving channel estimation accuracy in OFDM system because channel state information is required for signal detection at receiver and its accuracy affects the overall...
Provided by International Journal of Computer Applications
-
Whitepapers
The Analysis of R/S Estimation Algorithm with Applications to WiMAX Network Traffic
Jul 2012
One of the most popular scale exponent estimation algorithms is the Rescaled Range (R/S) analysis. The algorithm estimates the ratio of a range and standard deviation statistics in a window with...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Minimum BER Transmit Beamforming for MIMO - OFDM Systems With Finite Rate Feedback
Apr 2008
In recent years, it has become apparent that the performance of multi-antenna wireless systems can be significantly improved by exploiting Channel State Information (CSI) at the transmitter. This...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
EM-Based Receiver Design for Uplink MIMO-OFDMA Systems
Apr 2008
In this paper, the authors propose an iterative receiver for uplink MIMO-OFDMA systems based on the Expectation Maximization (EM) algorithm. Iterating between the E-step and the M-step, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
BER Analysis of Proposed Wimax System in Different Channel Environments
Sep 2012
In the last few years, the telecommunication industries' development has focused on an intensive use of broadband systems, which are characterized by high quality features. For this issue,...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
WiMAX Networks: Services & Their Quality Matrics
Jun 2012
WiMAX is the worldwide interoperability for microwave access, to provide business and consumer world wireless broad band services in metropolitan area networks. It has a target range of 31 miles...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
Convergence of Ethernet PON and IEEE 802.16 Broadband Access Networks and Its QoS-Aware Dynamic Bandwidth Allocation Scheme
May 2009
IEEE 802.16 and Ethernet Passive Optical Network (EPON) are two promising broadband access technologies for high-capacity wireless access networks and wired access networks, respectively. They...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Gain Enhancement of Microstrip Patch Antenna Using Hemispherical and Spherical Dielectric Lens Structure for WiMAX Applications
Mar 2012
In this paper a study of the directive gain enhancement obtained using a dielectric lens placed in the near field of radiating elements is discussed. The design and results of a single element...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
Performance Analysis of Turbo Coded WiMAX System Over Different Communication Channels
Aug 2012
An ever crowed Radio spectrum system implies that future demands must be met using more data throughput wireless technologies. Since system bandwidth is limited and user demand continues to grow....
Provided by International Journal of Engineering Research and Development (IJERD)
-
Whitepapers
A Survey on Uplink Bandwidth Request in WiMaX Networks
Aug 2012
The bandwidth allocation in both wired and wireless networks has posed great challenges to network engineers for improving desirable Quality of Service (QoS). Bandwidth allocation is always an...
Provided by International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
-
Whitepapers
Wimax Technology and Its Applications
Jul 2011
This paper presents the features of the Worldwide Interoperability for Microwave Access (WiMAX) technology and future applications of WiMAX. A discussion is given by comparing WIMAX with...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Secure Authentication & Key Exchange Technique for IEEE 802.16e by Using Cryptographic Properties
Aug 2011
Many sophisticated authentication and encryption techniques have been embedded into IEEE 802.16 but it still facing a lot of challenging situations. Authentication process is a key to secure...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Review on Efficient Reuse of Bandwidth for Throughput Enhancement in IEEE 802.16 Networks
Dec 2011
IEEE 802.16 is a standard supporting applications demanding bandwidth. Bandwidth reservation and usage depends on the type of the application. Transmission rate varies with respect to transmission...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
FPGA Based Variable - Point FFT Processor
Jul 2011
An efficient variable length FFT processor is required for the downlink module of Orthogonal Frequency Division Multiple Access (OFDMA) system. This system is used in the mobility mode of the IEEE...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Adaptive Priority-Based Downlink Scheduling for WiMAX Networks
Oct 2012
Supporting Quality of Service (QoS) guarantees for diverse multimedia services are the primary concerns for WiMAX (IEEE 802.16) networks. A scheduling scheme that satisfies QoS requirements has...
Provided by Tamir Khason
-
Whitepapers
Estimation and Compensation of Inter Carrier Interference in WIMAX Physical Layer Under Various Channel Models
Sep 2012
WiMAX is wireless Interoperability for microwave access has emerged as a promising solution for transmission of higher data rates for fixed and mobile applications. IEEE 802.16d and e are the...
Provided by JNTU College of Engineering
-
Whitepapers
Performance Analysis of Wimax System by Increasing Capacity Using Various Compression Techniques
Aug 2012
With the tremendous increase in wireless technology and wireless services in the last few decades has put forward the need of an efficient wireless technology that provides high data rates. WiMAX...
Provided by International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
-
Whitepapers
Inter-Domain Roaming Mechanism Transparent to IPv6-Node Among PMIPv6 Networks
Mar 2010
Proxy Mobile IPv6 (PMIPv6) is designed to provide mobility service to IPv6-nodes in a network domain by network based management which does not require the nodes to be involved in IP mobility...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Condensed Downlink MAP Structures for IEEE 802.16e Wireless Metropolitan Area Networks (MANs)
Mar 2010
The new mobile Wireless Metropolitan Area Network (WMAN) architecture imposes a demanding performance requirement on the radio resource to provide broadband internet access. The radio resource is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Mobile WiMAX: Impact of Mobility on the Performance of Limited Feedback Linear Precoding
Mar 2010
The mobile WiMAX standard (802.16e) uses Multiple-Input Multiple-Output (MIMO) limited feedback linear precoding to exploit the channel state information at the transmitter. Although the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Protocol Design of a Slot Allocation Scheme for Persistence-Reservation-Based IEEE 802.16d Mesh Networks
May 2012
This paper proposes a MAC-layer timeslot allocation signaling protocol for IEEE 802.16d mesh networks. The proposed mechanism complements the three-way-handshake signaling described in the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QoE Enhancement by Capacity Allocation and Piggyback Bandwidth Request in Audio-Video IP Transmission Over the IEEE 802.16 BE Service
Mar 2012
This paper studies QoE (Quality of Experience) enhancement of audio - video IP transmission over the uplink channel, i.e., from Subscriber Stations (SSs) to the Base Station (BS), in the IEEE...
Provided by Nagoya Institute of Technology
-
Whitepapers
Dimensionality Reduced Decoding for the Golden Code With the Worst-Case Complexity of O(m1.5) for Low Range of SNR
Mar 2012
The multiple antenna technique with space-time coding is efficient to communicate reliably on multipath wireless channel at high-data rates. The golden code is a well-known space-time code for two...
Provided by Istanbul Technical University
-
Whitepapers
Performance Evaluation of TCP in IEEE 802.16 Networks
Mar 2012
An important application for the IEEE 802.16 technology (also called WiMAX) it to provide high-speed access to the Internet where the Transmission Control Protocol (TCP) is the core transport...
Provided by Democritus University of Thrace
-
Whitepapers
Optimal Rate Assignment for Higher Utility WiMAX Surveillance Systems
Mar 2012
In this paper, the authors address the problem of guaranteed transmission of video flows in the context of WiMAX mesh networks for video surveillance purposes. The main design issue in such...
Provided by Telecom of New Zealand
-
Whitepapers
A Variable-Length Burst Scheduling Algorithm (VLBS) for Downlink Traffic in IEEE 802.16m OFDMA Systems
Mar 2012
In IEEE 802.16m networks, each frame is divided into eight Advanced Air Interface (AAI) sub-frames, composed of Logical Resource Units (LRUs). According to stations' requirements, Advanced Base...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Piggybacking Scheme of MAP IE for Minimizing MAC Overhead in the IEEE 802.16e OFDMA Systems
Aug 2007
This paper analyzes Media Access Control(MAC) overhead of the IEEE 802.16e systems and shows that it causes to degrade system performance critically. MAP, a control message about resource...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of IEEE 802.16e (Mobile WiMAX) in OFDM Physical Layer
Mar 2012
WiMAX is introduced by the Institute of Electrical and Electronic Engineers (IEEE) which is standard designated 802.16d-2004 (used in fixed wireless applications) and 802.16e-2005 (mobile...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
A Fast-Convergence Decoding Method and Memory-Efficient VLSI Decoder Architecture for Irregular LDPC Codes in the IEEE 802.16e Standards
Aug 2007
In this paper, the authors propose a modified iterative decoding algorithm to decode a special class of Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes such as QC-LDPC codes used in the IEEE...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of 802.16e in Vehicle to Vehicle Channels
Aug 2007
Vehicle-To-Vehicle (V2V) communications have drawn much attention in the past few years. The IEEE 802.16e standard systems can be considered potential candidates for these applications due to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Method for Non-Real-Time Polling Service in IEEE 802.16 Wireless Access Networks
Aug 2007
The authors propose a new polling method for non-real-time traffics for the uplink of the 802.16 WirelessMAN systems. Though the standard supports various polling services for uplink data...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Capacity Enhancement of WiMAX System Using Adaptive Modulation and Code Rate
Aug 2012
Future wireless networks such as 4G system will support high data rate and multimedia services including facsimile, video teleconferencing, file transfer by consuming less bandwidth such as...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
Optimum MIMO-OFDM Receivers With Imperfect Channel State Information
Oct 2008
Channel estimation inaccuracy is known to affect significantly the error performance of coded communication systems. This applies in particular to broadband MIMO channels, often considered in...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Synchronous Multicast and Broadcast Service in Multi-Rate IEEE 802.16j WiMAX Relay Network
Aug 2011
IEEE 802.16j Mobile Multihop Relay Standard defines multi-hop relay operation in a WiMAX system. It uses a novel synchronous multicast and broadcast transmission mechanism to achieve macro...
Provided by Springer Science+Business Media
-
Whitepapers
Open Stub Loaded Rectangular Microstrip Antenna for WLAN and WiMAX Applications
Apr 2012
This paper presents a simple design of open stub loaded rectangular microstrip antenna for multiband operation. Two open stubs of suitable dimensions are placed at two diagonally opposite corners...
Provided by Serials Publiations
-
Whitepapers
An Efficient Scheduling Scheme With Diverse Traffic Demands in IEEE 802.16 Networks
May 2009
In IEEE 802.16 networks, a Subscriber Station (SS) could be a single mobile user, a residence house, or an office building providing Internet service for multiple customers. Considering the...
Provided by John Wiley & Sons
-
Whitepapers
A Cooperative Multicast Scheduling Scheme for Multimedia Services in IEEE 802.16 Networks
Aug 2010
Multicast communications is an efficient mechanism for one-to-many transmissions over a broadcast wireless channel, and is considered as a key technology for supporting emerging broadband...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of the Cumulative ARQ in IEEE 802.16 Networks
Dec 2008
In this paper, the authors study the performance of the cumulative Automatic Repeat reQuest (ARQ) in IEEE 802.16 networks. An analytical model is developed to investigate some important...
Provided by Springer Science+Business Media
-
Whitepapers
Designs of Access Mechanisms in IEEE 802.16e Mobile Systems
Aug 2012
In this paper, the authors first propose a call admission control algorithm for IEEE 802.16e mobile WiMAX system. They then design the handover mechanism according to the general handover...
Provided by International Journal of Computer Theory and Engineering (IJCTE)
-
Whitepapers
Packet Scheduling With QoS and Fairness for Downlink Traffic in WiMAX Networks
Jun 2011
The IEEE 802.16 standard is supposed to provide a wide-range broadband wireless service, but it leaves the implementation of the wireless resource scheduler as an open issue. The authors have...
Provided by KIPS
-
Whitepapers
Radio Measurements in the WiMAX Band of 2.3 GHz, in Coastal Zone for Different Transmitting Antenna Heights
Jun 2012
In this paper, comparison of propagation prediction models for WiMAX at 2.3 GHz for different transmitting antenna height is presented and path loss for different models such as COST-231 Hata...
Provided by International Journal of Engineering and Advanced Technology (IJEAT)
-
Whitepapers
Effects of Novel Long Life Routing Algorithms on IEEE 802.16 Throughput Improvement Methods for Various Vehicular Velocities
Apr 2012
In this paper, effects of fastest path routing, ant-colony routing, Associativity Based Routing (ABR) and other novel proposed associativity based long life routing algorithms, on novel proposed...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Analysis of WiMAX Physical Layer Using Spatial Multiplexing
Apr 2012
Broadband Wireless Access (BWA) has emerged as a promising solution for providing last mile internet access technology to provide high speed internet access to the users in the residential as well...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Qualitative Analysis of the QoS Parameters at the Layer 1 and 2 of Mobile Wimax 802.16e
Apr 2012
IEEE 802.16/WiMAX is the network which is designed with quality of service in mind. In this paper the authors have made an attempt to qualitatively analyze the performance factors at the physical...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Study the Effect of Base Frequency on the Performance of WiMAX Network Carrying Voice
Jul 2012
WiMAX is stand for Worldwide Interoperability for Microwave Access. (WiMAX) embodies the IEEE 802.16 family of standards that provide wireless broadband access to residential and commercial...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Smart Antenna for Wi-Max Radio System
Jun 2012
In simple words, smart antenna is such that it can sense its environment and can adjust its gain in different directions accordingly. The authors provide a smart solution to the problem of...
Provided by International Journal of Advanced Research in Computer Engineering & Technology
-
Whitepapers
Versions of 802.16
Oct 2011
Worldwide Interoperability for Microwave Access (WIMAX) which is currently employed in some parts of the world is the new era of communication. It is approved by IEEE 802.16 group and is the...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
Dynamic Inter Arrival Time Based Seamless Handoff for Mobile WIMAX Ping-Pong Calls Bypassing PKMv2 EAP Authentication
Jun 2012
The rapid growth of wireless communication and its persistent use influences all walks of life. Mobile WiMAX IEEE 802.16e standard enabled convergence of mobile and fixed broadband networks...
Provided by mecs-press
-
Whitepapers
Detection of Rogue Base Stations in Wimax/IEEE802.16 Using Sensors
Aug 2012
This paper considers the problem of detecting rogue base station in Wimax/802.16 networks. IEEE 802.16 is an emerging standard for broadband wireless communications that is receiving a lot of...
Provided by International Journal of Computer Technology and Applications
-
Whitepapers
Reconfigurable Architecture for LDPC and Turbo Decoding: A NoC Case Study
Jul 2008
Trends in wireless communication systems are in the direction of multi-mode systems using different algorithms to implement the baseband processing and the channel decoding. Efficient...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Modified Bowtie Antenna Design for Wi-Fi and WiMAX Applications
Jun 2008
This paper presents a new approach for the design of a multi-band bowtie antenna. By incorporating slots with different shapes and sizes on the arms of the bowtie, resonance is obtained in the 2.4...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Novel Cooperative Transmission Using Matching Algorithm for WiMax Mesh Networks
Jun 2008
In this paper, the authors propose a new power-saving scheme by introducing the pair-wise matching procedure between the Subscriber Stations (SSs) prior to the uplink data transmission in the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Delay Analysis and Performance Evaluation of a Guaranteed QoS Provisioning Mechanism for Real-Time Traffic in IEEE 802.16e BWA Systems
Jun 2008
Now-a-days, multimedia applications are expected to be an important traffic source in wireless networks. Such sources usually have stringent delay requirements and in many cases they should be...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Comparison of Full-Rate Full-Diversity 2×2 Space-Time Codes for WiMAX Systems
Jul 2008
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 & Electronic Engineers
-
Whitepapers
A Statistical Connection Admission Control Mechanism for Multiservice IEEE 802.16 Network
Mar 2009
IEEE 802.16 is a promising technology in broadband wireless access area. In multiservice IEEE 802.16 network, Connection Admission Control (CAC) plays a critical role for resource management and...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Novel Predistortion Algorithm for OFDMA
Mar 2009
The RF amplifier in a wireless communication system is usually non-linear in nature. If such an amplifier is used in OFDMA based systems, it will cause serious degradation. This degradation will...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
FPGA Implementation of FFT Algorithm for OFDM Based IEEE 802.16d (Fixed WiMAX) Communications
Sep 2010
OFDM technology is used for many communication systems such as Asymmetric Digital Subscriber Line (ADSL), Wireless Local Area Network (WLAN) or multimedia communication services. One of the key...
Provided by Gonzaga University
-
Whitepapers
Efficient Distributed Authentication Key Scheme for Multi-Hop Relay in IEEE 802.16j Network
Jun 2010
Relaying and cooperation have re-emerged as important research topic in the wireless communication over the past decade. IEEE 802.16j Multihop relay network is assiduously developing to accomplish...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Digital Up Converter for Wimax System
Sep 2010
In the recent times, mobile communication needs not only a high data rate transmission but also a relatively fast mobility. The mobile WiMAX based on Orthogonal Frequency Division Multiple Access...
Provided by International Journal of Engineering Science and Technology (IJEST)
-
Whitepapers
Utility Based Backoff (UBB) Algorithm for Initial Ranging Procedure in WiBro
Mar 2009
In this paper, a contention resolution backoff algorithm termed Utility Based Backoff (UBB) is proposed for initial ranging procedure in IEEE 802.16e based WiBro (Wireless Broadband) system. In...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Dynamic Power Saving Mechanism for Mobile Station in the IEEE 802.16e Systems
Mar 2009
In wireless communication system, power saving mechanism is a key issue since the mobile station operates depending on limited power. Hence, the IEEE 802.16e system provides three types of power...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Link Level Simulation Study of Downlink MIMO and Uplink HARQ in IEEE 802.16e Wimax System
Mar 2009
The performance of the UpLink (UL) and DownLink (DL) of IEEE 802.16e-2005 or Worldwide Inter-Operability Microwave Access (WiMAX) standard is studied via extensive computer simulations in this...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Enhancement of Sleep Mode Operation in IEEE 802.16e Systems
Mar 2009
IEEE 802.16e has specified sleep mode operations depending on different types of power saving class for the purpose of energy saving. To solve the inefficient problem of multiple power saving...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Cross-Layer Channel-Quality-Fair Scheduling for Video Uplink of Camera Networks Over WiMAX
Apr 2011
The authors propose a systematic cross-layer joint scheduling and resource allocation algorithm to provide enhanced Quality of Service (QoS) for real-time video uplink of camera networks over...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Dynamic Service Selection and Bandwidth Allocation in IEEE 802.16m Mobile Relay Networks
Jul 2011
Cooperative relay network will be supported in IEEE 802.16m to improve the coverage and performance of mobile broadband wireless access service. In this paper, the authors jointly consider the...
Provided by Nanyang Technological University
-
Whitepapers
An Adaptive Resource Allocation Scheme in OFDMA Based Multiservice WiMAX Systems
Feb 2008
In this paper, the authors propose a time-frequency resource allocation scheme for OFDMA based system in WiMAX access networks. They utilize a user-based scheduling scheme to reduce complexity....
Provided by Beijing University of Posts and Telecommunications
-
Whitepapers
A Novel Cross Layer NFCAC Game Algorithm in IEEE 802.16-Based Multi-Radio Heterogeneous Ad Hoc Networks
Feb 2008
The special scenario of the topology in the IEEE 802.16-based multi-radio heterogeneous Ad Hoc Networks was analyzed and a novel cross layer game algorithm based on Neural Fuzzy Connection...
Provided by Inha University
-
Whitepapers
Performance Study of Bandwidth Request Mechanisms in IEEE 802.16e Networks
Nov 2011
WiMAX (Worldwide Interoperability for Microwave Access) is the IEEE 802.16 standards-based wireless technology that provides fixed and mobile Internet access for Metropolitan Area Networks (MAN)....
Provided by International Journal of Computer Science and Communication Networks (IJCSCN)
-
Whitepapers
Performance Analysis of ARQ Mechanism in Wimax Networks
Nov 2011
WiMAX (Worldwide Interoperability for Microwave Access) is the IEEE 802.16 standards-based wireless technology, provides Broadband Wireless Access (BWA) for Metropolitan Area Networks (MAN). The...
Provided by International Journal of Computer Communications and Networks (IJCCN)
-
Whitepapers
Optimized Frame Packing for OFDMA Systems
Apr 2008
Orthogonal Frequency Division Multiple Access (OFDMA) is the basis for several emerging wireless systems, such as 802.16e (WiMAX) or 3GPP Long Term Evolution (LTE). In OFDMA, different users are...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Survey of DownLink Data Allocation Algorithms in IEEE 802.16 WiMAX
Apr 2012
IEEE 802.16 standard and its marketing technology Worldwide Interoperability for Microwave Access (WiMAX) is one of the leading technology that gain benefit of adopting Orthogonal Frequency...
Provided by International Journal of Computer Networks and Wireless Communications (IJCNWC)
-
Whitepapers
Dynamic Resource Allocation in High Speed Mobile OFDMA System
Apr 2008
A novel dynamic resource allocation algorithm is proposed for matching the OFDMA system in high speed mobile environment, which suffers from high inter-carrier interference and large dynamic range...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QoS-Guaranteed Scheduling and Resource Allocation Algorithm for IEEE 802.16 OFDMA System
Apr 2008
For IEEE 802.16 Broadband Wireless Access (BWA) system, the support of QoS is of prime importance for providing various traffic profiles in wireless links. Scheduling and resource allocation play...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Antenna Selection for Next Generation IEEE 802.16 Mobile Stations
Apr 2008
The IEEE 802.16/WiMAX standard has fully embraced multi-antenna technology and can, thus, deliver robust and high transmission rates and higher system capacity. Nevertheless, due to its inherent...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Analysis of Weighted Proportional Fairness Scheduling in IEEE 802.16 Networks
Apr 2008
In IEEE 802.16 Networks, a Subscriber Station (SS) could be a single mobile user, a residence house, or an office building providing Internet service for multiple customers. Considering the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Receive Correlation-Based User Scheduling for Collaborative Spatial Multiplexing Systems
Apr 2008
In this paper, the authors propose a user scheduling scheme to maximize the ergodic capacity of multi-user MIMO uplink systems. The proposed scheduling scheme only considers the use of the receive...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Relay Station Placement in IEEE 802.16j Dual-Relay MMR Networks
Apr 2008
Cooperative relaying is one of the most effective techniques in coverage extension and capacity enhancement by virtue of spatial diversity. To fully explore the benefits of adopting Relay Stations...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Cross Layer Scheduling Algorithm for IEEE 802.16 Broadband Wireless Networks
Apr 2008
In order to support different types of user applications, the IEEE 802.16 standard defines different service classes together with their associated Quality of Service (QoS) parameters. However,...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Block Based Channel Estimation Algorithms for OFDM-IEEE 802.16e (Mobile WiMAX) System
Jan 2011
This paper is to show the improving channel estimation accuracy in OFDM system because channel state information is required for signal detection at receiver and its accuracy affects the overall...
Provided by International Journal of Computer Applications
-
Whitepapers
The Analysis of R/S Estimation Algorithm with Applications to WiMAX Network Traffic
Jul 2012
One of the most popular scale exponent estimation algorithms is the Rescaled Range (R/S) analysis. The algorithm estimates the ratio of a range and standard deviation statistics in a window with...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Minimum BER Transmit Beamforming for MIMO - OFDM Systems With Finite Rate Feedback
Apr 2008
In recent years, it has become apparent that the performance of multi-antenna wireless systems can be significantly improved by exploiting Channel State Information (CSI) at the transmitter. This...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
EM-Based Receiver Design for Uplink MIMO-OFDMA Systems
Apr 2008
In this paper, the authors propose an iterative receiver for uplink MIMO-OFDMA systems based on the Expectation Maximization (EM) algorithm. Iterating between the E-step and the M-step, the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
BER Analysis of Proposed Wimax System in Different Channel Environments
Sep 2012
In the last few years, the telecommunication industries' development has focused on an intensive use of broadband systems, which are characterized by high quality features. For this issue,...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
WiMAX Networks: Services & Their Quality Matrics
Jun 2012
WiMAX is the worldwide interoperability for microwave access, to provide business and consumer world wireless broad band services in metropolitan area networks. It has a target range of 31 miles...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
Convergence of Ethernet PON and IEEE 802.16 Broadband Access Networks and Its QoS-Aware Dynamic Bandwidth Allocation Scheme
May 2009
IEEE 802.16 and Ethernet Passive Optical Network (EPON) are two promising broadband access technologies for high-capacity wireless access networks and wired access networks, respectively. They...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Gain Enhancement of Microstrip Patch Antenna Using Hemispherical and Spherical Dielectric Lens Structure for WiMAX Applications
Mar 2012
In this paper a study of the directive gain enhancement obtained using a dielectric lens placed in the near field of radiating elements is discussed. The design and results of a single element...
Provided by International Journal of Emerging Technology and Advanced Engineering (IJETAE)
-
Whitepapers
Performance Analysis of Turbo Coded WiMAX System Over Different Communication Channels
Aug 2012
An ever crowed Radio spectrum system implies that future demands must be met using more data throughput wireless technologies. Since system bandwidth is limited and user demand continues to grow....
Provided by International Journal of Engineering Research and Development (IJERD)
-
Whitepapers
A Survey on Uplink Bandwidth Request in WiMaX Networks
Aug 2012
The bandwidth allocation in both wired and wireless networks has posed great challenges to network engineers for improving desirable Quality of Service (QoS). Bandwidth allocation is always an...
Provided by International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
-
Whitepapers
Wimax Technology and Its Applications
Jul 2011
This paper presents the features of the Worldwide Interoperability for Microwave Access (WiMAX) technology and future applications of WiMAX. A discussion is given by comparing WIMAX with...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Secure Authentication & Key Exchange Technique for IEEE 802.16e by Using Cryptographic Properties
Aug 2011
Many sophisticated authentication and encryption techniques have been embedded into IEEE 802.16 but it still facing a lot of challenging situations. Authentication process is a key to secure...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Review on Efficient Reuse of Bandwidth for Throughput Enhancement in IEEE 802.16 Networks
Dec 2011
IEEE 802.16 is a standard supporting applications demanding bandwidth. Bandwidth reservation and usage depends on the type of the application. Transmission rate varies with respect to transmission...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
FPGA Based Variable - Point FFT Processor
Jul 2011
An efficient variable length FFT processor is required for the downlink module of Orthogonal Frequency Division Multiple Access (OFDMA) system. This system is used in the mobility mode of the IEEE...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
Adaptive Priority-Based Downlink Scheduling for WiMAX Networks
Oct 2012
Supporting Quality of Service (QoS) guarantees for diverse multimedia services are the primary concerns for WiMAX (IEEE 802.16) networks. A scheduling scheme that satisfies QoS requirements has...
Provided by Tamir Khason
-
Whitepapers
Estimation and Compensation of Inter Carrier Interference in WIMAX Physical Layer Under Various Channel Models
Sep 2012
WiMAX is wireless Interoperability for microwave access has emerged as a promising solution for transmission of higher data rates for fixed and mobile applications. IEEE 802.16d and e are the...
Provided by JNTU College of Engineering
-
Whitepapers
Performance Analysis of Wimax System by Increasing Capacity Using Various Compression Techniques
Aug 2012
With the tremendous increase in wireless technology and wireless services in the last few decades has put forward the need of an efficient wireless technology that provides high data rates. WiMAX...
Provided by International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
-
Whitepapers
Inter-Domain Roaming Mechanism Transparent to IPv6-Node Among PMIPv6 Networks
Mar 2010
Proxy Mobile IPv6 (PMIPv6) is designed to provide mobility service to IPv6-nodes in a network domain by network based management which does not require the nodes to be involved in IP mobility...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Condensed Downlink MAP Structures for IEEE 802.16e Wireless Metropolitan Area Networks (MANs)
Mar 2010
The new mobile Wireless Metropolitan Area Network (WMAN) architecture imposes a demanding performance requirement on the radio resource to provide broadband internet access. The radio resource is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Mobile WiMAX: Impact of Mobility on the Performance of Limited Feedback Linear Precoding
Mar 2010
The mobile WiMAX standard (802.16e) uses Multiple-Input Multiple-Output (MIMO) limited feedback linear precoding to exploit the channel state information at the transmitter. Although the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Protocol Design of a Slot Allocation Scheme for Persistence-Reservation-Based IEEE 802.16d Mesh Networks
May 2012
This paper proposes a MAC-layer timeslot allocation signaling protocol for IEEE 802.16d mesh networks. The proposed mechanism complements the three-way-handshake signaling described in the...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
QoE Enhancement by Capacity Allocation and Piggyback Bandwidth Request in Audio-Video IP Transmission Over the IEEE 802.16 BE Service
Mar 2012
This paper studies QoE (Quality of Experience) enhancement of audio - video IP transmission over the uplink channel, i.e., from Subscriber Stations (SSs) to the Base Station (BS), in the IEEE...
Provided by Nagoya Institute of Technology
-
Whitepapers
Dimensionality Reduced Decoding for the Golden Code With the Worst-Case Complexity of O(m1.5) for Low Range of SNR
Mar 2012
The multiple antenna technique with space-time coding is efficient to communicate reliably on multipath wireless channel at high-data rates. The golden code is a well-known space-time code for two...
Provided by Istanbul Technical University
-
Whitepapers
Performance Evaluation of TCP in IEEE 802.16 Networks
Mar 2012
An important application for the IEEE 802.16 technology (also called WiMAX) it to provide high-speed access to the Internet where the Transmission Control Protocol (TCP) is the core transport...
Provided by Democritus University of Thrace
-
Whitepapers
Optimal Rate Assignment for Higher Utility WiMAX Surveillance Systems
Mar 2012
In this paper, the authors address the problem of guaranteed transmission of video flows in the context of WiMAX mesh networks for video surveillance purposes. The main design issue in such...
Provided by Telecom of New Zealand
-
Whitepapers
A Variable-Length Burst Scheduling Algorithm (VLBS) for Downlink Traffic in IEEE 802.16m OFDMA Systems
Mar 2012
In IEEE 802.16m networks, each frame is divided into eight Advanced Air Interface (AAI) sub-frames, composed of Logical Resource Units (LRUs). According to stations' requirements, Advanced Base...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Piggybacking Scheme of MAP IE for Minimizing MAC Overhead in the IEEE 802.16e OFDMA Systems
Aug 2007
This paper analyzes Media Access Control(MAC) overhead of the IEEE 802.16e systems and shows that it causes to degrade system performance critically. MAP, a control message about resource...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of IEEE 802.16e (Mobile WiMAX) in OFDM Physical Layer
Mar 2012
WiMAX is introduced by the Institute of Electrical and Electronic Engineers (IEEE) which is standard designated 802.16d-2004 (used in fixed wireless applications) and 802.16e-2005 (mobile...
Provided by International Journal of Engineering Research and Applications (IJERA)
-
Whitepapers
A Fast-Convergence Decoding Method and Memory-Efficient VLSI Decoder Architecture for Irregular LDPC Codes in the IEEE 802.16e Standards
Aug 2007
In this paper, the authors propose a modified iterative decoding algorithm to decode a special class of Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes such as QC-LDPC codes used in the IEEE...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Evaluation of 802.16e in Vehicle to Vehicle Channels
Aug 2007
Vehicle-To-Vehicle (V2V) communications have drawn much attention in the past few years. The IEEE 802.16e standard systems can be considered potential candidates for these applications due to...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Method for Non-Real-Time Polling Service in IEEE 802.16 Wireless Access Networks
Aug 2007
The authors propose a new polling method for non-real-time traffics for the uplink of the 802.16 WirelessMAN systems. Though the standard supports various polling services for uplink data...
Provided by Institute of Electrical & Electronic Engineers
-
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
-
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
Keep Up with TechRepublic
Submit a Paper
Get your content listed in our directory!
Our directory is the largest library of vendor-supplied technical content on the Web. It’s also the first place IT decision makers turn to when researching technology solutions. Our members are already finding your competitors’ papers here - shouldn’t they find yours, too? It's FREE so click here and submit your white paper, case study, data sheet, research report, or other document today!
