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Abstract. An increasing desire for mobility for data users has encouraged
wide-scale deployment of wireless networks, in particular using an approach
of peer-to-peer multi-hop adhoc networks. In such networks, each node
potentially acts as a data terminal as well as performing
a relay function linking terminals that do not have a
direct connection. This paper focuses on the Media Access Control
(MAC) function of the Data Link Layer. It discusses the
requirements of MAC in a wireless network and identifies four
fundamental assumptions in many protocol designs that, if not true,
may impact on protocol performance. A discussion of some well-known
MAC protocols seeks to illustrate and clarify wireless adhoc network
MAC issues. Detailed examination, with particular attention on two of
the assumptions, is then made of two attractive hybrid schemes
called CATA and AGENT that have recently been proposed. The
examination shows that the behaviour of AGENT is somewhat more
robust.
Related topics:
communications systems, command systems
View first page of "Blair: Potential Shortcomings Of Selected Media Access Control Protocols For Wireless Ad Hoc Networks"
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