Mobility

A Dual-Radio Framework for MAC Protocol Implementation in Wireless Sensor Networks

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Executive Summary

In this paper, the authors present a dual-radio framework for implementing MAC protocols in wireless sensor networks. The framework is based on the observation that MAC operations can be categorized into bandwidth-independent and bandwidth-dependent. Unlike existing dual-radio systems, they do not propose a new MAC protocol. Instead, they show how a given MAC protocol can be re-implemented using a dual-radio framework resulting in substantial energy savings. The framework is generic, different categories of MAC protocols can be re-implemented based on dual radios. This includes synchronous (e.g., SMAC), asynchronous (e.g., BMAC) and hybrid (e.g., SCP-MAC). Moreover, recent and promising asynchronous but receiver-initiated protocols like LPP and A-MAC can also be benefited.

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