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wimax (802.16)
(1054 results)-
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
-
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
-
Whitepapers
Contention-Based Polling Efficiency in Broadband Wireless Networks
Jun 2008
This paper addresses the performance of the contention based polling techniques at the bandwidth reservation stage of IEEE 802.16 standard. A general proposition is proved, which establishes that...
Provided by Springer Healthcare
-
Whitepapers
IEEE 802.11 and 802.16 Cooperation Within Multi-Radio Stations
Feb 2008
In this paper, the authors address the problem of the cooperative functioning of two communication standards, namely, IEEE 802.11 and IEEE 802.16, within a single multi-radio station. The concept...
Provided by State University of Aerospace Instrumentation
-
Whitepapers
Distributed Queue Random Multiple Access Algorithm for Centralized Data Networks
Oct 2009
The development of efficient media access control protocols for new generation networks, such as IEEE 802.16 metropolitan wireless system, is a challenging task nowadays. The problem of designing...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Empirical Evaluation of Superposition Coded Multicasting for Scalable Video
Sep 2012
In this paper, the authors investigate cross-layer Superposition Coded Multicast (SCM). Previous studies have proven its effectiveness in exploiting better channel capacity and service...
Provided by King Abdullah University of Science and Technology
-
Whitepapers
Improve Downlink Burst Allocation to Achieve High Frame Utilization of Mobile WiMAX (802.16e)
Nov 2012
The burst allocation algorithm is responsible about calculating the appropriate dimensions and location of each user's data to construct the bursts in the downlink subframe in term of the number...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Novel Fast Encryption Algorithms for Multimedia Transmission over Mobile WiMax Networks
Nov 2012
Security support is mandatory for any communication networks. For wireless systems, security support is even more important to protect the users as well as the network. Since wireless medium is...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Performance Analysis of Scheduling Algorithms For VoIP Services in IEEE 802.16 Systems
Nov 2012
VoIP applications are being widely used in today's networks challenging their capabilities to provide a good quality of experience level to the users. In particular, there are several scheduling...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improving Quality of VoIP over WiMAX
May 2012
Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services are no longer confined to the wired domain and are being extended...
Provided by International Journal of Computer Science Issues
-
Whitepapers
A New Energy Saving Mechanism in IEEE 802.16e/m
Nov 2011
To extend lifetime of battery-powered mobile device before its recharging in broadband wireless access networks, power saving mechanism in MAC (Medium Access Control) has become a significant...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Handoff Process In Mobile WiMAX Networks
Jun 2012
In the present scenario, new and fast emerging technologies are taking place in the field of wireless networks. These technologies allow high speed broadband wireless access. Mobile WiMAX...
Provided by Kurukshetra University
-
Whitepapers
Next Generation 4G WiMAX Networks - IEEE 802.16 Standard
Oct 2012
This paper gives an overview about the various PHY and MAC layer specification which define the IEEE 802.16 standard and which define the Fixed WiMAX (Ver. 802.16d-2004) and Mobile WiMAX (Ver....
Provided by AIRCC
-
Whitepapers
Embedded Reconfigurable Synchronization & Acquisition ASIP for a Multi-Standard OFDM Receiver
May 2012
Embedded reconfigurable architectures are currently attracting increasing attention in the wireless communications industry due to the escalating number of wireless standards in today's market....
Provided by Springer Healthcare
-
Whitepapers
Survey of Down Link Data Allocation Algorithms in IEEE 802.16 WiMAX
Jul 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 Academy & Industry Research Collaboration Center
-
Whitepapers
Vertical Handover Decision Algorithm From WiMAX to WLAN Based on the Mobile Node's Speed and the Session's Priority
Dec 2012
The vertical handover decision strategy in the heterogeneous wireless networks is very challenging issue because it needs to deal with many different radio access networks and make decisions for...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Performance Evaluation of WiMAX Network with AMC and MCCDMA for Mobile Environments
Oct 2012
The WiMAX forum is based on 802.16d/e Orthogonal Frequency Division Multiplexing (OFDM) based adaptive Physical Layer (PHY) layer. In this paper, the performance of WiMAX PHY layer is investigated...
Provided by National Institute of Technology Jalandhar
-
Whitepapers
An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
Nov 2011
In this paper, the authors propose a network coding-based relay scheme for multi-hop relay networks, called NC-BR. It allows RSs to combine two wireless backhaul transmissions into one using the...
Provided by Hindawi Publishing
-
Whitepapers
Congestion-Free Fair Resource Allocation Scheme for IEEE 802.16 WiMAX Networks
Jul 2012
In the resource allocation scheme of WiMAX IEEE 802.16 networks, the uplink bandwidth of a Subscriber Station (SS) should be able to deliver all traffic from itself and its children, without...
Provided by EuroJournals
-
Whitepapers
QADBM- QoS Specific Adaptive Dynamic Buffer Management with Scheduling Intelligence in Wimax 16m Networks
Jul 2012
Emerging multimedia services like immersive environments, IPTV applications, video conferencing, and 3D virtual world requires reliable communication even in high mobility in heterogeneous network...
Provided by EuroJournals
-
Whitepapers
OFDM Baseband Transmitter Implementation Compliant IEEE Std 802.16d on FPGA
Nov 2009
Broadband Wireless Access (BWA) is a promising technology which can offer high speed voice, video and internet connection. The leading candidate for BWA is WiMAX, a technology that complies with...
Provided by TELFOR
-
Whitepapers
Performance Analysis of Neural Networks Based Priority Scheduler for WiMAX Under Bursty Traffic Conditions
May 2012
Worldwide interoperability for Microwave Access (WiMAX) is one of the most familiar broadband wireless access technologies that support multimedia transmission. IEEE 802.16 Medium Access Control...
Provided by EuroJournals
-
Whitepapers
Hard Hand Over Process in IEEE 802.16j Transparent Method of Wireless Networks
Mar 2012
The two different relay methods are defined in IEEE 802.16j WIMAX standard; transparent method and non-transparent method. IEEE 802.16j standard supports mobile station mobility; it defines three...
Provided by EuroJournals
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Whitepapers
Compressed Key Exchange and Key Caching in PKMv2-EAP Mobile WiMAX Authentication
Feb 2012
The anticipated technology Mobile WiMAX provides a seamless support to its users with a few setbacks in it, i.e., the effect of handover which causes delays and packet losses in every network...
Provided by EuroJournals
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Whitepapers
Technical Issues in IEEE 802.16j Mobile Multi-Hop Relay (MMR) Networks
Dec 2011
IEEE 802.16j mobile multi hop relay WiMAX networks is created to compete with cable access networks. In this paper, the authors have conducted a survey on Relay technologies in IEEE 802.16j...
Provided by EuroJournals
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Whitepapers
An Enhanced Scheduling Scheme for QoS Guarantee using Channel State Information in WiMAX Networks
Nov 2011
Providing QoS guarantees are becoming increasingly complex with the advancement in technology and the rapid deployment of WiMAX networks. This paper proposes an enhanced scheduling scheme to...
Provided by EuroJournals
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Whitepapers
Performance Analysis of VoIP Traffic in WiMAX Using Various Service Classes
Aug 2012
Worldwide Interoperability for Microwave Access (WiMAX) is currently one of the hottest technologies in wireless, it's a standard-based on the IEEE 802.16 wireless technology that provides high...
Provided by International Journal of Computer Applications
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Whitepapers
Cascaded TAS/MRC in MIMO Multiuser Relay Networks
Oct 2012
In multiuser networks, the deployment of cooperative relays between the wireless access point and the user terminals is a promising solution to increase the transmission rate and extend network...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Downlink Resource Allocation for Multi-User MIMO-OFDMA Systems: The Kalai-Smorodinsky Bargaining Approach
Oct 2009
As a promising technology to significantly increase the spectral efficiency of wireless systems, Multiple-Input and Multiple-Output (MIMO) techniques have drawn much attention over the past two...
Provided by University of Calgary
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Whitepapers
Grey Relation Analysis for Vertical Handover Decision Schemes in Heterogeneous Wireless Networks
Jun 2011
Seamless continuity is the main goal and challenge in Fourth Generation Wireless Networks (FGWNs), to achieve seamless connectivity "HANDOVER" technique is used, Handover mechanisms are mainly...
Provided by EuroJournals
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Whitepapers
Delay-aware Load Balanced Routing Protocol for IEEE 802.16 Wireless Mesh Networks
Nov 2012
In IEEE 802.16 Wireless Mesh Networks (WMN) routing, delay aware load balancing can be achieved by selecting the shortest path with low latency and network load. But network load and latency...
Provided by International Journal of Computer Science Issues
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Whitepapers
Comparative Study of SUI Channels in IEEE802.16d Using Different Cyclic Prefix
Dec 2010
WiMAX which represents Worldwide Interoperability for microwave access is a major part of broadband wireless network having IEEE 802.16 standard provides innovative fixed as well as mobile...
Provided by EuroJournals
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Whitepapers
A Cross Layer Approach for Packet Scheduling at Downlink of WiMAX IEEE802.16e
Oct 2010
WiMAX is one of the broadband wireless access networks with promising technology for providing better coverage and Quality of Service (QoS) to subscribers in the network. It supports different...
Provided by EuroJournals
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Whitepapers
Implementation of Wimax IEEE802.16d Baseband Transceiver Based Wavelet OFDM on Multi-Core Software-Defined Radio Platform
May 2010
IEEE 802.16d-2004 has been developed for WIMAX wireless communication which is based on OFDM technology and this enables going towards the 4G, in wireless communication reception, the reliability...
Provided by EuroJournals
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Whitepapers
Performance Evaluation and Enhancement of Uplink Scheduling Algorithms in Point to Multipoint WiMAX Networks
Sep 2010
IEEE 802.16 standard has defined one of the most emerging technologies for Broadband Wireless Access (BWA) in metropolitan areas, called WiMAX (Worldwide Interoperateability for Microwave Access)....
Provided by EuroJournals
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Whitepapers
How Bad Is Interference in IEEE 802.16e Systems?
Apr 2010
This paper presents a performance model for dynamic resource allocation in cellular deployments of IEEE 802.16e-like systems. More specifically, the authors derive a framework which allows to...
Provided by RWSoftware
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Whitepapers
Investigate the Performance Evaluation of IPTV Over WiMAX Networks
Jan 2013
Deployment Video on Demand (VoD) over the next generation (WiMAX) has become one of the intense interest subjects in the research these days, and is expected to be the main revenue generators in...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
Implementation of Unified Architecture of 802.11a and 802.16a PHY Layers Using Verilog HDL (R & D)
Apr 2012
WiFi and WiMAX are the well developed and standardized technologies working on OFDM platform. Their physical layer architecture are much similar accept WiMAX physical layer has RS encoder &...
Provided by IOSR Journal of Engineering
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Whitepapers
On the Accuracy of the Gaussian Approximation for the Evaluation of Nonlinear Effects in OFDM Signals
Jul 2010
OFDM (Orthogonal Frequency Division Multiplexing) modulations can have excellent performance in severely time-dispersive channels without the need of complex receiver implementations, making them...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Bit Error Rate Evaluation of IEEE 802.16 (WiMAX) in OFDM System
Feb 2012
This paper investigates several modulation techniques for IEEE 802.16 (WiMAX) based OFDM system including BPSK, QPSK, 8PSK and various levels of QAMs. The system performance is gained by...
Provided by International Journal of Computer Applications
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White Papers
Mobile WiMAX Security, Architecture and Assessment
Jan 2012
WiMAX (Worldwide Interoperability for Microwave Access) is an emerging wireless communication system that can provide broadband access with large-scale coverage. Since 2001, WiMAX has evolved from...
Provided by International Journal of Electronics Communication and Computer Engineering
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White Papers
A 2.469-2.69GHz AlGaN/GaN HEMT Power Amplifier for IEEE 802.16e WiMAX Applications
Nov 2008
WiMAX, with the whole name Worldwide Interoperability of Microwave Access, is a new broadband wireless access technique which is based on IEEE 802.16 standard. The basic object of WiMAX is that,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Efficient Mobile WiMAX Capacity Estimations in a Multihop Environment
Nov 2008
The1new relay-based architecture for Mobile WiMAX that will allow multi-hop communication imposes a demanding performance requirement on relay stations. The frame structure used for transmission...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
QoS Scheduling for Group Mobility in WiMAX
Nov 2008
In this paper, the authors have proposed an adaptive scheduling algorithm to suit group mobility scenarios in the mobile WiMAX. The QoS scheduling scheme aims to minimize the end-to-end delay for...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Self-Adaptive Truncated Binary Exponential Backoff Scheme for WiMAX P2MP Network With Heavy Traffic
Nov 2008
As a new wireless network access technology, IEEE 802.16 can provide broadband Internet connection to user. However, it was found that the mandatory contention resolution scheme in IEEE 802.16 can...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Proactive Forward Error Control Scheme for Mobile WiMAX Communication
Nov 2008
The IEEE 802.16 standard, also known as WiMAX, has yet to prove its effectiveness when the end terminals are not static and free to move at vehicular speeds. High bit error rate caused by...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Design of Zone-Based Bandwidth Management Scheme in IEEE 802.16 Multi-Hop Relay Networks
Jul 2011
IEEE 802.16 Wireless Network technology is a hot research issue in recent years. It provides wider coverage of radio and higher speed wireless access, and Quality-of-Service plays an important...
Provided by Springer
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White Papers
Optimal Modulation and Coding Scheme Allocation of Scalable Video Multicast Over IEEE 802.16e Networks
Aug 2011
With the rapid development of wireless communication technology and the rapid increase in demand for network bandwidth, IEEE 802.16e is an emerging network technique that has been deployed in many...
Provided by Springer
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White Papers
The Promise of Downlink MU-MIMO for Highcapacity Next Generation Mobile Broadband Networks Based on IEEE 802.16 M
Sep 2011
The dramatic increase of the demand for mobile broadband services poses stringent requirements on the performance evolution of currently deployed mobile broadband networks, such as Mobile WiMAX...
Provided by Springer
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White Papers
Minimum Decoding Trellis Length and Truncation Depth of Wrap-Around Viterbi Algorithm for TBCC in Mobile WiMAX
Nov 2011
The performance of the wrap-around Viterbi decoding algorithm with finite truncation depth and fixed decoding trellis length is investigated for tail-biting convolutional codes in the mobile WiMAX...
Provided by Springer
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White Papers
A New and Efficient Adaptive Scheduling Packets for the Uplink Traffic in WiMAX Networks
Nov 2011
In this paper, an adaptive scheduling packets algorithm for the uplink traffic in WiMAX networks is proposed. The proposed algorithm is designed to be completely dynamic, mainly in networks that...
Provided by Springer
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White Papers
Speech Quality Aware Admission Control for Fixed IEEE 802.16 Wireless MAN
Aug 2009
The authors present an Admission Control (AC) algorithm for the specific case of pre-provisioned IEEE 802.16d links for VoIP aggregates. The algorithm approaches AC from a new perspective as...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
IP and WiMAX Coalition
Aug 2009
The IEEE 802.16 standard focuses on the MAC and physical layers. Its deployment needs a seamless integration with IP related protocols. This paper presents a review of approaches for IP support...
Provided by University of Coimbra
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White Papers
Network Simulation and Performance Evaluation of WiMAX Extensions for Isolated Research Data Networks
Aug 2009
IEEE 802.16 is yet a very recent technology and released hardware does frequently only support standards partially. The same applies to public available simulation tools, in particular for NS-2....
Provided by University of Coimbra
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White Papers
Two-Dimensional Downlink Burst Construction in IEEE 802.16 Networks
Dec 2011
The characteristics of the IEEE 802.16 wireless communication cause considerable difficulty in burst construction. The proposed BCO algorithm maximizes the throughput during downlink burst...
Provided by Springer
-
White Papers
Mobile WiMAX Field Trial Test Through Multimedia Performance Evaluation
Feb 2012
IEEE 802.16e is a mobile version of Worldwide Interoperability for Microwave Access (WiMAX) that plays an important role in the evolution towards 4G. In this paper, the authors focus on multimedia...
Provided by EURASIP
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White Papers
A Proposed Joint Timing and Frequency Synchronization Method for IEEE 802.16 OFDM Systems
Nov 2008
Orthogonal Frequency Division Multiplexing (OFDM) systems are sensitive to time and frequency offset errors. In this paper, a method of joint timing and frequency synchronization for OFDM systems...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Research and Implementation of an AAA System for Railway WiMAX Communication Networks
Sep 2011
It is significantly noticeable within the worldwide railway industry that the current trend moves towards the use of train monitor/control systems based on wireless technologies like WiMAX. In...
Provided by Beijing Jiaotong University
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White Papers
Performance Analysis of Optimized FEC Based on IEEE 802.16d
Jan 2012
WiMAX is one of the most promising IEEE 802.16 standards. This paper carries out a study of IEEE 802.16d OFDM layer and mainly concentrates on the Forward Error Correction (FEC) based on IEEE...
Provided by International Journal of Computer Science and Telecommunications
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White Papers
Formal Verification of Initial Network Entry in WiMAX Networks
Aug 2011
The Initial Network Entry procedure is the first stage in establishing a connection in an IEEE 802.16 (WiMAX) network. The process involves the transmission of unencrypted management messages,...
Provided by Tshwane University of Technology
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White Papers
An Efficient Connection Admission Control (CAC) for QoS Provisioning in IEEE 802.16
Oct 2011
Service differentiation and QoS support are important aspects of Connection Admission Control (CAC) in IEEE 802.16 networks, which is left for vendors to design and implement for efficient...
Provided by University of Cape Town
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White Papers
A Handover Scheme for Mobile WiMAX Using Signal Strength and Distance
Aug 2011
The addition to the WiMAX standard through 802.16e has made the standard more flexible and a potential choice as a wireless broadband technology. To support mobility in any wireless scheme, the...
Provided by Tshwane University of Technology
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White Papers
Impact of Interference on the System Performance of Wimax Relay 802.16j With Sectoring
Apr 2011
The WiMAX Forum has proposed the standard 802.16j using relays in order to extend cell coverage at low cost. Moreover, the throughput of the user could be enhanced by using a better link...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Enhancement of Repacking and Borrowing Mechanisms for IEEE 802.16j Multihop Resource Scheduling
Aug 2011
The IEEE 802.16j standard has been proposed to triumph over the shadow fading and path attenuation problems in IEEE 802.16e networks by employing the Multi-hop Relay (MR) technology. Taking path...
Provided by Reed Elsevier
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White Papers
Improved rtPS Scheduling With QoE Metrics in Joint WiMAX/Satellite Networks
Jan 2012
This paper improves a previously proposed scheduling algorithm that is responsible to share the allocated capacity to the up-link traffic of an integrated satellite and WiMAX network. The target...
Provided by University of Athens
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White Papers
An Algorithm for Controlling Packet Size in IEEE 802.16e Networks
Jun 2011
This paper proposes an algorithm to be used in IEEE 802.16e networks for adapting MAC PDU size to wireless channel behavior when ARQ is adopted at MAC layer. The algorithm is based on an...
Provided by Reed Elsevier
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White Papers
A Policy-Based Trust-Aware Adaptive Monitoring Scheme to Enhance WiMax QoS
Apr 2011
The IEEE 802.16 standard does not define or recommend any algorithm for measuring whether a flow exceeds its maximum sustained traffic rate. However, in this standard the Service Data Units deemed...
Provided by Reed Elsevier
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White Papers
Efficient Downlink Scheduling With Power Boosting in Mobile IEEE 802.16 Networks
Dec 2010
In current mobile Broadband Wireless Access (BWA) technologies, which are based on Orthogonal Frequency Division Multiple Access (OFDMA), terminals close to cell edge experience poor channel...
Provided by Reed Elsevier
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White Papers
Misbehaviour Metrics in WiMAX Networks Under Attack
Jun 2010
Much effort has been taken to make WiMAX a secure technology. Due to its broadcast nature, WiMAX is more susceptible to security threats than a wired network. In this paper, the authors give a...
Provided by Liverpool John Moores University
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White Papers
Handover Optimization for Real-Time Application in Mobile WiMAX / IEEE 802.16e
Jun 2010
The demand for wireless broadband services is growing rapidly. Mobile WiMAX is one of the most promising technologies for broadband wireless communication. It allows users to roam over the network...
Provided by Liverpool John Moores University
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White Papers
Collaborative Attacks in WiMAX Networks
Jul 2009
In this paper, the authors discuss security problems, with a focus on collaborative attacks, in the Worldwide Interoperability for Microwave Access (WiMAX) scenario. The WiMAX protocol suite,...
Provided by John Wiley & Sons
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White Papers
On BS/BS Coordination Towards Interference Minimization in WiMAX Networks
Jan 2011
Broadband wireless networking is a rapidly evolving research field supported by both industrial and academic communities. Focusing on the Medium Access Control (MAC) layer, IEEE 802.16 protocol...
Provided by Reed Elsevier
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White Papers
Pre-Authentication and Selection of Suitable Target Base Station During Handover Procedure in Mobile WiMAX Network
Jun 2011
WiMAX (Worldwide Interoperability for Microwave Access) is an emerging technology that can provide wireless broadband access at the data rates of 70 Mbps over 50 kilometres to both home and...
Provided by Liverpool John Moores University
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White Papers
Simulation of Frequency, Timing Acquisition, and Cell Search Algorithms for OFDMA Based Mobile WiMAX
Jan 2012
Mobile WiMAX is based on orthogonal frequency division multiple access technique. It, therefore, inherited the frequency and timing offset problems which contribute to the loss of the transmitted...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Design and Simulation Low Noise Amplifier at 5.8GHz for WIMAX Applications
Jan 2012
This paper presents a 5.8 GHz Low Noise Amplifier (LNA) design with cascode and cascaded techniques using T-matching network applicable for IEEE 802.16 standard. The amplifier use FHX76LP Low...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Cost Analysis of Optimized Fast Mobile IPv6 in WiMAX Network
Jan 2012
Micro mobility in WiMAX is defined in IEEE802.16e standard. Fast Mobile IPv6 has been used as an IP layer protocol to support macro mobility in WiMAX network. The issue of how to apply IP layer...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Improvement in Packet Drop During Handover Between WiFi and WiMax
Jan 2012
Efficiency of seamless handover in heterogeneous networks depends on the factors such as handoff delay, number of handovers and packet drop during handovers. Improving the efficiency of seamless...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
A Dual-Band Bandpass Filter Using SIR Suitable for WiMAX Band
Jan 2012
In this paper a dual band bandpass filter with sharp rejection is proposed. The filter is realized by using two half wavelength stepped impedance resonator to operate at the passband 2.5 GHz and...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
Performance Analysis of Delay Jitter in Mobile WiMAX Systems
Jan 2012
Mobile WiMAX, based on IEEE 802.16e provides five different service classes: UGS, ertPS, rtPS, nrtPS and BE, to deliver the best quality experiences for mobile WiMAX users. Each service class is...
Provided by International Association of Computer Science & Information Technology (IACSIT)
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White Papers
A Radio Resource Allocation Algorithm for QoS Provision in PMP-based Systems
Jul 2010
Based on the studies on downlink resource allocation in Point to Multi-Point (PMP) mode in the 802.16e systems, an efficient downlink resource allocation algorithm with low complexity is proposed...
Provided by Academy Publisher
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Whitepapers
Contention-Based Polling Efficiency in Broadband Wireless Networks
Jun 2008
This paper addresses the performance of the contention based polling techniques at the bandwidth reservation stage of IEEE 802.16 standard. A general proposition is proved, which establishes that...
Provided by Springer Healthcare
-
Whitepapers
IEEE 802.11 and 802.16 Cooperation Within Multi-Radio Stations
Feb 2008
In this paper, the authors address the problem of the cooperative functioning of two communication standards, namely, IEEE 802.11 and IEEE 802.16, within a single multi-radio station. The concept...
Provided by State University of Aerospace Instrumentation
-
Whitepapers
Distributed Queue Random Multiple Access Algorithm for Centralized Data Networks
Oct 2009
The development of efficient media access control protocols for new generation networks, such as IEEE 802.16 metropolitan wireless system, is a challenging task nowadays. The problem of designing...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Empirical Evaluation of Superposition Coded Multicasting for Scalable Video
Sep 2012
In this paper, the authors investigate cross-layer Superposition Coded Multicast (SCM). Previous studies have proven its effectiveness in exploiting better channel capacity and service...
Provided by King Abdullah University of Science and Technology
-
Whitepapers
Improve Downlink Burst Allocation to Achieve High Frame Utilization of Mobile WiMAX (802.16e)
Nov 2012
The burst allocation algorithm is responsible about calculating the appropriate dimensions and location of each user's data to construct the bursts in the downlink subframe in term of the number...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Novel Fast Encryption Algorithms for Multimedia Transmission over Mobile WiMax Networks
Nov 2012
Security support is mandatory for any communication networks. For wireless systems, security support is even more important to protect the users as well as the network. Since wireless medium is...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Performance Analysis of Scheduling Algorithms For VoIP Services in IEEE 802.16 Systems
Nov 2012
VoIP applications are being widely used in today's networks challenging their capabilities to provide a good quality of experience level to the users. In particular, there are several scheduling...
Provided by International Journal of Computer Science Issues
-
Whitepapers
Improving Quality of VoIP over WiMAX
May 2012
Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services are no longer confined to the wired domain and are being extended...
Provided by International Journal of Computer Science Issues
-
Whitepapers
A New Energy Saving Mechanism in IEEE 802.16e/m
Nov 2011
To extend lifetime of battery-powered mobile device before its recharging in broadband wireless access networks, power saving mechanism in MAC (Medium Access Control) has become a significant...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Handoff Process In Mobile WiMAX Networks
Jun 2012
In the present scenario, new and fast emerging technologies are taking place in the field of wireless networks. These technologies allow high speed broadband wireless access. Mobile WiMAX...
Provided by Kurukshetra University
-
Whitepapers
Next Generation 4G WiMAX Networks - IEEE 802.16 Standard
Oct 2012
This paper gives an overview about the various PHY and MAC layer specification which define the IEEE 802.16 standard and which define the Fixed WiMAX (Ver. 802.16d-2004) and Mobile WiMAX (Ver....
Provided by AIRCC
-
Whitepapers
Embedded Reconfigurable Synchronization & Acquisition ASIP for a Multi-Standard OFDM Receiver
May 2012
Embedded reconfigurable architectures are currently attracting increasing attention in the wireless communications industry due to the escalating number of wireless standards in today's market....
Provided by Springer Healthcare
-
Whitepapers
Survey of Down Link Data Allocation Algorithms in IEEE 802.16 WiMAX
Jul 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 Academy & Industry Research Collaboration Center
-
Whitepapers
Vertical Handover Decision Algorithm From WiMAX to WLAN Based on the Mobile Node's Speed and the Session's Priority
Dec 2012
The vertical handover decision strategy in the heterogeneous wireless networks is very challenging issue because it needs to deal with many different radio access networks and make decisions for...
Provided by Science and Development Network (SciDev.Net)
-
Whitepapers
Performance Evaluation of WiMAX Network with AMC and MCCDMA for Mobile Environments
Oct 2012
The WiMAX forum is based on 802.16d/e Orthogonal Frequency Division Multiplexing (OFDM) based adaptive Physical Layer (PHY) layer. In this paper, the performance of WiMAX PHY layer is investigated...
Provided by National Institute of Technology Jalandhar
-
Whitepapers
An Unbound Network Coding for Extended IEEE 802.16j Multihop Relay Network
Nov 2011
In this paper, the authors propose a network coding-based relay scheme for multi-hop relay networks, called NC-BR. It allows RSs to combine two wireless backhaul transmissions into one using the...
Provided by Hindawi Publishing
-
Whitepapers
Congestion-Free Fair Resource Allocation Scheme for IEEE 802.16 WiMAX Networks
Jul 2012
In the resource allocation scheme of WiMAX IEEE 802.16 networks, the uplink bandwidth of a Subscriber Station (SS) should be able to deliver all traffic from itself and its children, without...
Provided by EuroJournals
-
Whitepapers
QADBM- QoS Specific Adaptive Dynamic Buffer Management with Scheduling Intelligence in Wimax 16m Networks
Jul 2012
Emerging multimedia services like immersive environments, IPTV applications, video conferencing, and 3D virtual world requires reliable communication even in high mobility in heterogeneous network...
Provided by EuroJournals
-
Whitepapers
OFDM Baseband Transmitter Implementation Compliant IEEE Std 802.16d on FPGA
Nov 2009
Broadband Wireless Access (BWA) is a promising technology which can offer high speed voice, video and internet connection. The leading candidate for BWA is WiMAX, a technology that complies with...
Provided by TELFOR
-
Whitepapers
Performance Analysis of Neural Networks Based Priority Scheduler for WiMAX Under Bursty Traffic Conditions
May 2012
Worldwide interoperability for Microwave Access (WiMAX) is one of the most familiar broadband wireless access technologies that support multimedia transmission. IEEE 802.16 Medium Access Control...
Provided by EuroJournals
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Whitepapers
Hard Hand Over Process in IEEE 802.16j Transparent Method of Wireless Networks
Mar 2012
The two different relay methods are defined in IEEE 802.16j WIMAX standard; transparent method and non-transparent method. IEEE 802.16j standard supports mobile station mobility; it defines three...
Provided by EuroJournals
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Whitepapers
Compressed Key Exchange and Key Caching in PKMv2-EAP Mobile WiMAX Authentication
Feb 2012
The anticipated technology Mobile WiMAX provides a seamless support to its users with a few setbacks in it, i.e., the effect of handover which causes delays and packet losses in every network...
Provided by EuroJournals
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Whitepapers
Technical Issues in IEEE 802.16j Mobile Multi-Hop Relay (MMR) Networks
Dec 2011
IEEE 802.16j mobile multi hop relay WiMAX networks is created to compete with cable access networks. In this paper, the authors have conducted a survey on Relay technologies in IEEE 802.16j...
Provided by EuroJournals
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Whitepapers
An Enhanced Scheduling Scheme for QoS Guarantee using Channel State Information in WiMAX Networks
Nov 2011
Providing QoS guarantees are becoming increasingly complex with the advancement in technology and the rapid deployment of WiMAX networks. This paper proposes an enhanced scheduling scheme to...
Provided by EuroJournals
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Whitepapers
Performance Analysis of VoIP Traffic in WiMAX Using Various Service Classes
Aug 2012
Worldwide Interoperability for Microwave Access (WiMAX) is currently one of the hottest technologies in wireless, it's a standard-based on the IEEE 802.16 wireless technology that provides high...
Provided by International Journal of Computer Applications
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Whitepapers
Cascaded TAS/MRC in MIMO Multiuser Relay Networks
Oct 2012
In multiuser networks, the deployment of cooperative relays between the wireless access point and the user terminals is a promising solution to increase the transmission rate and extend network...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Downlink Resource Allocation for Multi-User MIMO-OFDMA Systems: The Kalai-Smorodinsky Bargaining Approach
Oct 2009
As a promising technology to significantly increase the spectral efficiency of wireless systems, Multiple-Input and Multiple-Output (MIMO) techniques have drawn much attention over the past two...
Provided by University of Calgary
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Whitepapers
Grey Relation Analysis for Vertical Handover Decision Schemes in Heterogeneous Wireless Networks
Jun 2011
Seamless continuity is the main goal and challenge in Fourth Generation Wireless Networks (FGWNs), to achieve seamless connectivity "HANDOVER" technique is used, Handover mechanisms are mainly...
Provided by EuroJournals
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Whitepapers
Delay-aware Load Balanced Routing Protocol for IEEE 802.16 Wireless Mesh Networks
Nov 2012
In IEEE 802.16 Wireless Mesh Networks (WMN) routing, delay aware load balancing can be achieved by selecting the shortest path with low latency and network load. But network load and latency...
Provided by International Journal of Computer Science Issues
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Whitepapers
Comparative Study of SUI Channels in IEEE802.16d Using Different Cyclic Prefix
Dec 2010
WiMAX which represents Worldwide Interoperability for microwave access is a major part of broadband wireless network having IEEE 802.16 standard provides innovative fixed as well as mobile...
Provided by EuroJournals
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Whitepapers
A Cross Layer Approach for Packet Scheduling at Downlink of WiMAX IEEE802.16e
Oct 2010
WiMAX is one of the broadband wireless access networks with promising technology for providing better coverage and Quality of Service (QoS) to subscribers in the network. It supports different...
Provided by EuroJournals
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Whitepapers
Implementation of Wimax IEEE802.16d Baseband Transceiver Based Wavelet OFDM on Multi-Core Software-Defined Radio Platform
May 2010
IEEE 802.16d-2004 has been developed for WIMAX wireless communication which is based on OFDM technology and this enables going towards the 4G, in wireless communication reception, the reliability...
Provided by EuroJournals
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Whitepapers
Performance Evaluation and Enhancement of Uplink Scheduling Algorithms in Point to Multipoint WiMAX Networks
Sep 2010
IEEE 802.16 standard has defined one of the most emerging technologies for Broadband Wireless Access (BWA) in metropolitan areas, called WiMAX (Worldwide Interoperateability for Microwave Access)....
Provided by EuroJournals
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Whitepapers
How Bad Is Interference in IEEE 802.16e Systems?
Apr 2010
This paper presents a performance model for dynamic resource allocation in cellular deployments of IEEE 802.16e-like systems. More specifically, the authors derive a framework which allows to...
Provided by RWSoftware
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Whitepapers
Investigate the Performance Evaluation of IPTV Over WiMAX Networks
Jan 2013
Deployment Video on Demand (VoD) over the next generation (WiMAX) has become one of the intense interest subjects in the research these days, and is expected to be the main revenue generators in...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
Implementation of Unified Architecture of 802.11a and 802.16a PHY Layers Using Verilog HDL (R & D)
Apr 2012
WiFi and WiMAX are the well developed and standardized technologies working on OFDM platform. Their physical layer architecture are much similar accept WiMAX physical layer has RS encoder &...
Provided by IOSR Journal of Engineering
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Whitepapers
On the Accuracy of the Gaussian Approximation for the Evaluation of Nonlinear Effects in OFDM Signals
Jul 2010
OFDM (Orthogonal Frequency Division Multiplexing) modulations can have excellent performance in severely time-dispersive channels without the need of complex receiver implementations, making them...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Bit Error Rate Evaluation of IEEE 802.16 (WiMAX) in OFDM System
Feb 2012
This paper investigates several modulation techniques for IEEE 802.16 (WiMAX) based OFDM system including BPSK, QPSK, 8PSK and various levels of QAMs. The system performance is gained by...
Provided by International Journal of Computer Applications
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Whitepapers
Spectrum Efficiency of WiMAX Networks in the Presence of Interference with Diversity Combining
Feb 2012
WiMAX (Worldwide interoperability for Microwave Access) is a promising technology which can offer high speed voice, video and data services up to the requirements at the customer's end. The...
Provided by International Journal of Computer Applications
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Whitepapers
A Modified Belief Propagation Algorithm Based on Attenuation of the Extrinsic LLR
Jul 2010
Low-Density Parity-Check (LDPC) codes was first proposed by R. Gallager in 1963 and rediscovered by MacKay in the late 1990s. It is proved to be a family of capacity-achieving codes and has been a...
Provided by Institute of Electrical & Electronic Engineers
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