Low{Bandwidth Access: An Evaluation of Application Level Protocol Compressibilityy
نویسندگان
چکیده
Wide area wireless networks will have limited bandwidth. One standard approach for increasing the eeective throughput on such links is to employ data compression. In conjunction with any data compression supplied by applications, low{bandwidth systems may also use hardware data compression provided by the data communications device. Unfortunately, compression at such a low level can cause problems with both traac analysis and cost estimation on limited bandwidth links. This investigation identiies some of the issues that arise from employing hardware compression and of monitoring low{bandwidth systems. It describes a compression investigation using CPU based link level compression rather than hardware compression. The results of this investigation, in conjunction with a previous study identifying the traac characteristics of low{bandwidth links, detail the compressibility statistics for many of the application level protocols typically owing over current low{bandwidth networks. This protocol compressibility information quantiies the general performance of packet compression on low{bandwidth traac and gives insight as to how compression schemes may be improved for a wireless low{bandwidth environment.
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