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Improving TCP performance over mobile wireless environments using cross layer feedback

DSpace at IIT Bombay

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Title Improving TCP performance over mobile wireless environments using cross layer feedback
 
Creator RAISINGHANI, VT
SINGH, AK
IYER, S
 
Subject internet
 
Description Transmission Control Protocol (TCP) is known to suffer from performance degradation in mobile wireless environments. This is because such environments are prone to packet losses due to high bit error rates and mobility induced disconnections. TCP interprets packet losses as. an indication of congestion and inappropriately invokes congestion control mechanisms, which leads to degraded performance. In this paper we show how cross-layer feedback, i.e. information from layers above and below, may be used to improve TCP performance over wireless networks. To illustrate the power of cross layer feedback, we present two novel mechanisms. One, we incorporate user feedback into the protocol stack by which the TCP throughput of a desired set of applications running on the mobile host can be dynamically controlled. Other, we propose an approach to use the lower layer connection and disconnection information, for improving TCP performance. Both these mechanisms entail minimal modification to the mobile host and no modifications to the sender or other network entities. We have implemented both these mechanisms in ns-2 and the simulation results demonstrate the effectiveness of cross layer feedback.
 
Publisher IEEE
 
Date 2011-10-24T15:39:07Z
2011-12-15T09:11:40Z
2011-10-24T15:39:07Z
2011-12-15T09:11:40Z
2002
 
Type Proceedings Paper
 
Identifier 2002 IEEE INTERNATIONAL CONFERENCE ON PERSONAL WIRELESS COMMUNICATIONS,81-85
0-7803-7569-6
http://dx.doi.org/10.1109/ICPWC.2002.1177250
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15457
http://hdl.handle.net/100/2215
 
Source 6th IEEE International Conference on Personal Wireless Communications,NEW DELHI, INDIA,DEC 15-17, 2002
 
Language English