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An Energy efficient WSN with cooperative relaying technique

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3 Author(s)
Harish, M. ; Electron. & Electr. Eng., Indian Inst. of Technol., Guwahati, India ; Srikanth, B. ; Bhattacharjee, R.

Some of the vital issues that need to be addressed in wireless sensor network (WSN) based applications are improving the network lifetime without replacing the batteries of node and diminution of energy imbalanced hotspots in the network. Many protocols are proposed for energy efficient cluster based sensor network. In this paper, energy efficient Adaptive number of Frames per Round (AFR) protocol is proposed for a WSN where cluster heads are evenly distributed. The proposed AFR protocol combined with the cooperative Multiple Input Single Output (MISO) technique is extended for dual-hop wireless sensor networks to improve the network lifetime. The selection of the cooperative relay then explored so that the unexpected partition in network is avoided. Different cooperative relay positions have been investigated for decreasing and balancing the energy consumption in the network. Comparison is made for AFR protocol with and without dual-hop cooperative MISO scheme as well as with some other existing protocols.

Published in:

Communications (NCC), 2012 National Conference on

Date of Conference:

3-5 Feb. 2012