Call For Paper Volume:4 Issue:6 Jun'2017

CSMA/SF: Carrier Sense Multiple Access with Shortest First in Multiple Layers

Publication Date : 11/10/2015



Author(s) :

Jinsha Ummar , Asha J George.


Volume/Issue :
Volume 2
,
Issue 10
(10 - 2015)



Abstract :

Energy consumption is the main problem in wireless sensor networks (WSNs) due to mobile devices’ limited battery energy. Because the heavy load of nodes that near the receiver, this energy hole issue makes nodes near the receiver have faster energy depletion than others. Because of this, the lifetime of wireless networks, is determined by the power consumption of communication between receiver and sensing nodes that near the receiver, to some extent. To meet this problem, here propose CSMA/SF (Shortest First) protocol to reduce energy consumption of sink-node communication by minimizing power cost in carrier sense during nodes’ channel contention. CSMA/SF in multiple layers improves existed CSMA/CA protocol and optimizes channel utilization by reducing the probability of collisions. In place of complete channel contention-based, CSMA/SF in multiple layers make sure that nodes remaining shorter message has higher priority.


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CSMA/SF: Carrier Sense Multiple Access with Shortest First in Multiple Layers

October 9, 2015