Modeling Wireless Links for Transport Protocols
ACM CCR, 34(2):85-96, April 2004
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Wireless links have intrinsic characteristics that affect the performance of transport protocols; these include variable bandwidth, corruption, shared links, channel allocation delays, and asymmetry. In this paper we consider the interplay between wireless links and transport protocols, and review simulation models for cellular, WLAN and satellite links used in transport design. We argue that the design and evaluation of transport protocols can be improved by providing easily available models of wireless links that strike a balance between realism, generality, and detail.
There is an ongoing tussle between wireless link design and transport
protocol design, with papers about how wireless link designers should take
into account the dynamics of TCP, and other papers about how TCP and other
transport protocols can be designed or modified for better performance
over current wireless link technologies. In this paper we consider how
appropriate models for wireless links can help in this tussle, and in the
general design and evaluation of transport protocols over wireless links.