Space-Time Block Coding for Wireless Communications
Space-Time Block Coding for Wireless Communications
Medium access control with coordinated adaptive sleeping for wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
Analysis of energy conservation in sensor networks
Wireless Networks
An Analytical Model for Wireless Sensor Networks with Sleeping Nodes
IEEE Transactions on Mobile Computing
A novel cluster-based cooperative MIMO scheme for multi-hop wireless sensor networks
EURASIP Journal on Wireless Communications and Networking
Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks
IEEE Transactions on Wireless Communications
Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks
IEEE Journal on Selected Areas in Communications
Cooperative Distributed MIMO Channels in Wireless Sensor Networks
IEEE Journal on Selected Areas in Communications
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Energy saving is a very important design consideration in wireless sensor networks. In cluster based wireless sensor networks, the energy could be saved when the nodes in a cluster that have data to transmit participate in cooperative Multiple Input Multiple Output (MIMO). In this paper, by making the idle nodes, that have no data to transmit, participate in the cooperative MIMO it is found that much more energy could be saved. The number of the idle nodes that participate in the cooperative MIMO can be optimized to minimize the total energy consumption. It is also found that the optimal number of all the nodes participating in cooperative communication does not vary with the number of nodes that have data to transmit in the cluster. The proposition is proved mathematically. The influence of long-haul distance and modulation constellation size on the total energy consumption is investigated in this paper as well.