Paper Info
Title
Cross-layer based congestion control for WLANs.
Abstract
Congestion control is a fundamental mechanism for the stability of the Internet and is a central mechanism for TCP. However, this congestion control mechanism focuses mainly on the core network state and is blind to the characteristics of wireless and mobile access networks. Moreover, TCP window based congestion control ignores totally application layer QoS needs and entails throughput variations which are not compliant with application layer QoS constraints such as bandwidth, delay and jitter. The TCP-Friendly Rate Control protocol (TFRC) was originally designed in the context of wired networks. This protocol is one of the most convincing attempt to provide a congestion control mechanism adapted to multimedia flows, although limited in its capacity to fully address these issues. After an identification and evaluation of the subtle counterproductive interactions between the WLANs MAC layer and the transport layer, this paper shows a new approach towards congestion control for WLANs. This paper also introduces a specialization of TFRC (MTFRC: Mobile TFRC), which is adapted to wireless access networks. This TFRC specialization requires only slight changes to the standard TFRC protocol. Simulation results show substantial improvements for applications over TFRC in scenarios where the bottleneck situates on the MAC layer of the mobile nodes.
Year
Venue
Keywords
2008
QSHINE
mac layer,congestion control,csma/ca,application layer qos constraint,mobile tfrc,congestion control mechanism,mobile network,wlans mac layer,standard tfrc protocol,transport layer,tfrc,application layer qos need,tfrc specialization,tcp friendly rate control,access network,core network,csma ca
Field
DocType
Citations 
Application layer,Core network,Computer network,Quality of service,Transport layer,Network congestion,Throughput,Engineering,TCP window scale option,TCP Friendly Rate Control
Conference
3
PageRank 
References 
Authors
0.41
10
4
Name
Order
Citations
PageRank
Lei Zhang12533164.29
Patrick Sénac222222.89
Emmanuel Lochin318036.39
Michel Diaz4101.84