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A study of adaptive forward error correction for wireless collaborative computing

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3 Author(s)
P. K. McKinley ; Dept. of Comput. Sci. & Eng., Michigan State Univ., East Lansing, MI, USA ; Chiping Tang ; A. P. Mani

This paper addresses the problem of reliably multicasting Web resources across wireless local area networks (WLANs) in support of collaborative computing applications. An adaptive forward error correction (FEC) protocol is described, which adjusts the level of redundancy in the data stream in response to packet loss conditions. The proposed protocol is intended for use on a proxy server that supports mobile users on a WLAN. The software architecture of the proxy service and the operation of the adaptive FEC protocol are described. The performance of the protocol is evaluated using both experimentation on a mobile computing testbed as well as simulation. The results of the performance study show that the protocol can quickly accommodate worsening channel characteristics in order to reduce delay and increase throughput for reliable multicast channels.

Published in:

IEEE Transactions on Parallel and Distributed Systems  (Volume:13 ,  Issue: 9 )