Optimal transmission range and node degree for multi-hop routing in wireless sensor networks
Proceedings of the 4th ACM workshop on Performance monitoring and measurement of heterogeneous wireless and wired networks
Analysis of cooperative MIMO MAC protocol in wireless sensor networks
ICNVS'10 Proceedings of the 12th international conference on Networking, VLSI and signal processing
Cooperative MIMO MAC protocol using STTC in wireless sensor networks
WSEAS TRANSACTIONS on COMMUNICATIONS
Increasing network lifetime in an energy-constrained wireless sensor network
International Journal of Sensor Networks
Energy-aware adaptive cooperative FEC protocol in MIMO channel for wireless sensor networks
Journal of Electrical and Computer Engineering
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Wireless Sensor Networks have become suitable for a wide range of applications during recent years. These networks demand the implementation of energy-aware techniques and low complexity protocols in all layers. Recently, a MIMO based structure has been proposed to offer enhanced energy savings in WSNs, compared with simple SISO transmission. In this paper we consider the most common transmission structure for WSNs, using multiple hops. We examine and compare MIMO based WSN with a multihop transmission in terms of energy efficiency. The results mainly depend on the channel conditions and the distance to the destination node. We reach analytical expressions to calculate threshold values of these parameters, which determine the areas where the MIMO based structure outperforms multihop transmission. Index Terms Energy efficiency evaluation, Multiple- Input-Multiple-Output systems, Wireless Sensor Networks I.