wireless networks Time Division Multiple Access TDMA
Barbara Hughes and Mark Gleeson and Marcin Karpinski and Raymond Cunningham and Vinny Cahill, Real-Time Communication in IEEE 802.11 Mobile Ad hoc Networks A Feasibility Study, Dept. of Computer Science Technical Reports, TCD-CS-2006-55, 2006
Dept. of Computer Science Technical Reports TCD-CS-2006-55
Achieving predictable communication latency in an ad
hoc IEEE 802.11 wireless local area network necessitates
an approach that overcomes the impact of the underlying
non-deterministic contention-based medium access control
(MAC) protocol. In this paper, we assess the feasibility of
using a Time Division Multiple Access (TDMA) layer above
the IEEE 802.11 MAC protocol in order to achieve such
predictable communication latency.
We present the design and implementation of this TDMA
layer and describe the influence of both the characteristics
of the IEEE 802.11MAC protocol and of the dynamics of an
ad hoc network on its design. We show that our approach
can yield the predictability and stability required to support
real-time communication in a real ad hoc environment,
typified by dynamic host mobility and varied offered load,
subject to identified constraints.
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