A Maximal Concurrency and Low Latency Distributed Scheduling Protocol for Wireless Sensor Networks

Xiaohui Liu; Hongwei Zhang

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arXiv · 1403.4637

A Maximal Concurrency and Low Latency Distributed Scheduling Protocol for Wireless Sensor Networks

Xiaohui Liu·Hongwei Zhang

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Abstract

Existing work that schedules concurrent transmissions collision-free suffers from low channel utilization. We propose the Optimal Node Activation Multiple Access (ONAMA) protocol to achieve maximal channel spatial reuse through a distributed maximal independent set (DMIS) algorithm. To overcome DMIS's excessive delay in finding a maximal independent set, we devise a novel technique called pipelined precomputation that decouples DMIS from data transmission. We implement ONAMA on resource-constrained TelosB motes using TinyOS. Extensive measurements on two testbeds independently attest to ONAMA's superb performance compared to existing work: improving concurrency, throughput, and delay by a factor of 3.7, 3.0, and 5.3, respectively, while still maintaining reliability.

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BibTeX RIS

Xiaohui Liu, Hongwei Zhang. 2014-04-01. A Maximal Concurrency and Low Latency Distributed Scheduling Protocol for Wireless Sensor Networks. https://arxiv.org/abs/1403.4637

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