Medium Access Control in Ad Hoc Networks with MIMO Links: Optimization Considerations and Algorithms
IEEE Transactions on Mobile Computing
On the relationship between capacity and distance in an underwater acoustic communication channel
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
Cooperative multihop communication for underwater acoustic networks
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
Proceedings of the 12th annual international conference on Mobile computing and networking
A survey on wireless multimedia sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
MIMO time reversal communications
Proceedings of the second workshop on Underwater networks
A hybrid medium access control protocol for underwater wireless networks
Proceedings of the second workshop on Underwater networks
A delay-reliability analysis for multihop underwater acoustic communication
Proceedings of the second workshop on Underwater networks
A CDMA-based medium access control for underwater acoustic sensor networks
IEEE Transactions on Wireless Communications
MIMOMAN: a MIMO MAC protocol for ad hoc networks
ADHOC-NOW'05 Proceedings of the 4th international conference on Ad-Hoc, Mobile, and Wireless Networks
MIMO CDMA antenna system for SINR enhancement
IEEE Transactions on Wireless Communications
MIMO Block Spread CDMA Systems for Broadband Wireless Communications
IEEE Transactions on Wireless Communications
IEEE Transactions on Information Theory
Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels
IEEE Transactions on Information Theory
Signal constellations for quasi-orthogonal space-time block codes with full diversity
IEEE Transactions on Information Theory
IEEE Journal on Selected Areas in Communications
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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 consumption compared with existing Aloha-like MAC protocols for UW-ASNs.