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An invitation transmission based MAC protocol for wireless sensor network

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3 Author(s)
Lili Qian ; Nat. ASIC Syst. Eng. Res. Center, Southeast Univ., Nanjing, China ; Guoliang Yao ; Hao Liu

In this paper we present an invitation transmission based MAC protocol (I-MAC) for wireless sensor network. I-MAC adopts an invitation mechanism based on synchronized schedule to improve the utilization of medium thereby reducing the latency. Firstly I-MAC defines a child nodes-parent node pairs which has only one father node (f-node) and several son nodes (s-node). An invitation table is maintained in f-node. F-node fills the necessary information of invitation in the invitation-control packet so that each s-node knows who will be invited in next step. Secondly in I-MAC, f-node can invite multiple s-nodes to transmit their packets in SLEEP period. Therefore packets can be transmitted to sink faster than traditional MAC protocols. In other words, I-MAC reduces the latency of each hop. Our simulation results in ns-2 show that I-MAC achieves significant improvement in terms of end-to-end delivery delay. Furthermore, our simulation results shows I-MAC also increases network throughput without sacrificing energy efficiency.

Published in:

Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on

Date of Conference:

21-23 April 2012

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