IJMTES – PERFORMANCE ANALYSIS OF COGNITIVE MAC PROTOCOL FOR WSNs

Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : A.Anandhan | P.Bindhu | T.Hari Krishnan | V.Hari Priya unnamed

Volume 03 Issue 08 2016

ISSN no:  2348-3121

Page no: 60-63

Abstract – In battery-constrained wireless sensor networks (WSNs), Energy efficiency has been the ramble force behind the design of communication protocol. In case of low-powered WSNs, the performance and the energy efficiency of the protocol stacks degenerate when they are subjected to interference from high-power wireless systems such as WLANs. In IEEE 802.15.4-compliant WSNs, a novel Cognitive Medium access control scheme (MAC) has been proposed to minimize the energy cost for multi-hop communications. Based on the experienced interference from IEEE 802.11 WLANs, a full range of energy efficiency packet length and single hop transmission distances must be derived. By comparing with previous access control scheme, a detailed analytic model has been derived to evaluate COG-MAC performance .Under WLAN interference, 66% of packet transmission and energy cost can be decreased by the numerical and simulation results. COG-MAC is lightweight and it can cope up with errors against WLAN model estimation. An effective, implementable solution to reduce the WSN performance impairment is when coexisting with WLANs.

Keywords— WSN, Energy efficiency, Cognitive networks, Coexistence, IEEE 802.11, IEEE 802.15.4 

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