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2009
ACM

Medium access control for underwater acoustic sensor networks with MIMO links

10 years 6 months ago
Medium access control for underwater acoustic sensor networks with MIMO links
The requirements of multimedia underwater monitoring applications with heterogeneous traffic demands in terms of bandwidth and end-to-end reliability are considered in this article. To address these requirements, a new medium access control protocol named UMIMO-MAC is proposed. UMIMO-MAC is designed to i) adaptively leverage the tradeoff between multiplexing and diversity gain according to channel conditions and application requirements, ii) select suitable transmit power to reduce energy consumption, and iii) efficiently exploit the UW channel, minimizing the impact of the long propagation delay on the channel utilization efficiency. To achieve the objectives above, UMIMO-MAC is based on a two-way handshake protocol. Multiple access by simultaneous and co-located transmissions is achieved by using different pseudo orthogonal spreading codes. Extensive simulation results show that UMIMO-MAC increases network throughput, decreases channel access delay, and decrease energy consumptio...
Li-Chung Kuo, Tommaso Melodia
Added 19 May 2010
Updated 19 May 2010
Type Conference
Year 2009
Where MSWIM
Authors Li-Chung Kuo, Tommaso Melodia
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