Optimal tradeoff between exposed and hidden nodes in large wireless networks

Author:

van de Ven Peter M.1,Janssen Augustus J.E.M.1,van Leeuwaarden Johan S.H.1

Affiliation:

1. Eindhoven University of Technology, Eindhoven, Netherlands

Abstract

Wireless networks equipped with the CSMA protocol are subject to collisions due to interference. For a given interference range we investigate the tradeoff between collisions (hidden nodes) and unused capacity (exposed nodes). We show that the sensing range that maximizes throughput critically depends on the activation rate of nodes. For infinite line networks, we prove the existence of a threshold: When the activation rate is below this threshold the optimal sensing range is small (to maximize spatial reuse). When the activation rate is above the threshold the optimal sensing range is just large enough to preclude all collisions. Simulations suggest that this threshold policy extends to more complex linear and non-linear topologies.

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Networks and Communications,Hardware and Architecture,Software

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Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Alleviating Hidden and Exposed Nodes in High-Throughput Wireless Mesh Networks;IEEE Transactions on Wireless Communications;2016-02

2. Balancing Exposed and Hidden Nodes in Linear Wireless Networks;IEEE/ACM Transactions on Networking;2014-10

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