Abstract
Energy saving has been the primal issue in designing medium access control (MAC) protocols for wireless sensor networks (WSNs). However, with the advent of new micro electro-mechanical systems (MEMS) technologies and recently thermo-powered and solar-powered sensor nodes – where nodes operate virtually for an unlimited time period – the research community is set to experience many diverse directions in this area. Factors like timeliness, scalability, synchronisation, adaptivity and reliability will play their part in the near future. This paper discusses AREA-MAC, a MAC protocol specially designed for real-time and energy-efficient WSN applications. AREA-MAC reduces latency and energy consumption of nodes by using low power listening (LPL) technique with short preamble messages. Other protocols like B-MAC use long preamble messages that cause higher latency, energy consumption and control overhead. Moreover, AREA-MAC provides reasonable trade-offs between vital parameters such as system fairness, throughp...
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