NDLI: Cross-layer optimization in QoS aware next generation wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Ukil, A.
Copyright Year	2009
Description	Author affiliation: Innovation Labs, Tata Consultancy Services Ltd., Kolkata, India (Ukil, A.)
Abstract	Providing guaranteed quality-of-service (QoS) for resource-hungry multimedia applications over wireless fading channels is challenging. Traditional layered architecture fails miserably in providing the QoS requirement of high throughput, low latency demand of these kinds of applications in wireless mobile networks. Cross-layer design approaches are critical for efficient utilization of the scarce radio resources with QoS provisioning in the 4G wireless networks like WiMAX. Better system performance can be obtained from information exchanges across protocol layers, which may not be available in the traditional layered architecture. Cross-layer design approaches are critical for efficient utilization of the scarce radio resources with QoS provisioning in the WiMAX based 4G networks. Here we have proposed a cross-layer framework for WiMAX networks to optimize the system performance as well as maintaining the end-to-end QoS of individual users. As proper utilization of limited network resources is very much essential to achieve the objective of high degree of optimization, resource allocation and scheduling are important issues. We also discuss in detail the cross-layer resource allocation and scheduling scheme in the WiMAX system and propose an algorithm to cater the need of better resource management particularly for heterogeneous traffic consisting of soft and hard QoS constraints applications in 4G networks. Numerical results demonstrate a significant performance gain for the cross-layer optimization.
Starting Page	1
Ending Page	5
File Size	344016
Page Count	5
File Format	PDF
ISBN	9781424446568
DOI	10.1109/ICICS.2009.5397495
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-08
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Next generation networking Wireless networks WiMAX Resource management Cross layer design System performance Quality of service Fading Throughput Delay QoS cross-layer optimization OFDMA resource allocation scheduling
Content Type	Text
Resource Type	Article

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