On the Throughput Capacity of Wireless Multi-Hop Networks With ALOHA, Node Coloring and CSMA

The authors quantify the throughput capacity of wireless multi-hop networks with several medium access schemes. They analyze pure ALOHA scheme where simultaneous transmitters are dispatched according to a uniform Poisson distribution and exclusion schemes where simultaneous transmitters are dispatched according to an exclusion rule such as node coloring and carrier sense based schemes. They consider both no-fading and standard Rayleigh fading channel models. Their results show that, under no-fading, slotted ALOHA can achieve at least one-third (or half under Rayleigh fading) of the throughput capacity of node coloring scheme whereas carrier sense based scheme can achieve almost the same throughput capacity as node coloring.

Provided by: INRIA Topic: Mobility Date Added: Nov 2011 Format: PDF

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