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A Broadcast Tree Construction Algorithm for Minimizing Latency in Multi-Rate Wireless Mesh Networks  

Kim, Nam-Hee (숙명여자대학교 컴퓨터과학과)
Park, Sook-Young (숙명여자대학교 컴퓨터과학과)
Lee, Sang-Kyu (숙명여자대학교 컴퓨터과학과)
Abstract
This paper considers the problem of minimizing network-wide broadcast latency in multi-rate wireless mesh networks where a node can dynamically adjust its link layer transmission rates to its neighbors. We propose a broadcast algorithm that complements existing broadcast construct algorithm which chooses a multicast node randomly when each candidate node has same metric. We consider the currently accumulated broadcast latency from source node to the each candidate node so far to choose the next broadcast node. The proposed broadcast algorithm for minimizing latency in a multi-rate mesh networks which exploit wireless advantage and the multi-rate nature of the network. Simulation based on current 802.11 parameters shows that proposed MinLink_WCDS algorithm improves overall latency than the previous existing broadcast algorithm.
Keywords
Wireless Mesh Networks; Multi-rate; latency; broadcast algorithm;
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