Mobility

Throughput and Fairness in Random Access Networks

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Executive Summary

This paper present an throughput analysis of log-utility and max-min fairness. Assuming all nodes interfere with each other, completely or partially, log-utility fairness significantly enhances the total throughput compared to max-min fairness since the nodes should have the same throughput in max-min fairness. The improvement is enlarged especially when the effect of cumulated interference from multiple senders cannot be ignored. In this paper, the authors focus on dense wireless networks using random access protocols such as 802.11 LANs in offices and urban residential areas. They mainly consider slotted-Aloha systems but their analysis is simply extended for CSMA/CS networks with a single carrier-sensing range.

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