Paper Info
Title
Adaptive Frame Concatenation Mechanisms for QoS in Multi-Rate Wireless Ad Hoc Networks
Abstract
Providing quality of service (QoS) to users in a wireless ad-hoc network is a key concern for service providers. With the availability of multiple rates in IEEE 802.11a/b/g wireless LANs, it is desirable to improve the network capacity and temporal fairness by sending multiple consecutive frames (also referred as frame concatenation mechanism) over high rate links, as proposed in opportunistic auto rate (OAR). However, OAR does not consider the effect of frame sizes and may yield unsatisfactory performance for high priority multimedia flows transmitting over low rate links. Therefore, a more appropriate frame concatenation strategy and a corresponding service differentiation scheme should be devised to provide better performance for high priority voice/video flows than low priority data flows, under various channel rate scenarios. In this paper, we first analyze the effect of frame size on the performance of OAR. Then, we propose a general concatenation mechanism (GCM), a more accurate frame concatenation mechanism for multi-rate MAC with better fairness. Finally, we propose two mechanisms: adaptive weighted fair frame concatenation mechanism (AWFCM) and adaptive QoS aware frame concatenation mechanism (AQCM), for supporting service differentiation and QoS in multi-rate wireless ad hoc networks. The primary idea is to adjust the number of concatenated frames based on flow weights/priorities, frame sizes, link rates, and network traffic. Simulation results show that the proposed mechanisms achieve desirable performance on supporting multimedia applications in multi-rate wireless ad-hoc networks.
Year
DOI
Venue
2008
10.1109/INFOCOM.2008.166
INFOCOM
Keywords
Field
DocType
network traffic,adaptive qos aware frame concatenation mechanism,quality of service,general concatenation mechanism,-multi-rate,multimedia,multirate wireless ad hoc networks,ieee 802.11a/b/g,telecommunication traffic,wireless lan,qos,ad hoc networks,adaptive weighted fair frame concatenation mechanism,data flow,wireless communication,concatenated codes,wireless ad hoc network,computer science,service provider,protocols,mobile ad hoc networks
Wireless,Computer science,Quality of service,Computer network,Service provider,Adaptive quality of service multi-hop routing,Concatenation,Wireless lan,Frame size,Wireless ad hoc network,Distributed computing
Conference
ISSN
ISBN
Citations 
0743-166X
978-1-4244-2025-4
2
PageRank 
References 
Authors
0.40
9
5
Name
Order
Citations
PageRank
Ming Li15595829.00
Hua Zhu230822.64
Yang Xiao36317456.36
Imrich Chlamtac44617728.71
Balakrishnan Prabhakaran555073.25