Abstract
Cooperative MIMO techniques deliver the speed and reliability required for future fifth generation mobile networks. However, coherent MIMO techniques demand high channel estimation complexity as well as high pilot overhead. Hence collaboration of cooperative communication and non-coherent schemes will be particularly beneficial in energy constrained wireless sensor networks (WSNs). Aiming at minimizing the energy consumption per bit, we propose an algorithm for differential cooperative communication in WSNs using unitary space time modulation technique. The algorithm computes the optimum transmission distance for the optimum number of cooperating nodes. The simulation results show that the proposed algorithm provides significant energy saving and increased network lifetime compared with the fixed distance cooperative schemes.
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Kanthimathi, M., Amutha, R. & Kumar, K.S. Energy efficiency analysis of differential cooperative algorithm in wireless sensor network. Cluster Comput 22 (Suppl 4), 9837–9845 (2019). https://doi.org/10.1007/s10586-017-1688-4
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DOI: https://doi.org/10.1007/s10586-017-1688-4