| Energy efficient TDMA-based MAC protocol associated with GAF for wireless sensor networks |
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| 作者姓名： | XIAO Xiao ZHENG Bao-yu YAN Zhen-ya CHEN Chao Institute of Signal and Information Processing Nanjing University of Posts and Telecommunications Nanjing China |
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| 作者单位： | XIAO Xiao，ZHENG Bao-yu，YAN Zhen-ya，CHEN Chao Institute of Signal and Information Processing，Nanjing University of Posts and Telecommunications，Nanjing 210003，China |
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| 摘 要： | The design of media access control (MAC) protocol for wireless sensor networks (WSNs) with the idea of cross layer attracts more and more attention. People can improve the MAC protocol by obtaining certain information regarding the network layer and physical layer. This article synthesizes and optimizes certain cross-layer protocols which have existed. On the basis of the routing, topology information in the network layer, and transmission power information in the physical layer, the time slot assignment algorithm has been improved in the MAC layer. By using geographical adaptive fidelity algorithm (GAF) to divide the grids, controlling of transmission power and scheduling the work/sleep duty cycle for sensor nodes, a new MAC protocol has been proposed to decrease energy consumption and enlarge the lifetime of WSNs. Simulation results show that the MAC protocol functions well.
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| 收稿时间： | 23 August 2006 |
Energy efficient TDMA-based MAC protocol associated with GAF for wireless sensor networks |
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| XIAO Xiao,ZHENG Bao-yu,YAN Zhen-ya,CHEN Chao Institute of Signal and Information Processing,Nanjing University of Posts and Telecommunications,Nanjing ,China.Energy efficient TDMA-based MAC protocol associated with GAF for wireless sensor networks[J].The Journal of China Universities of Posts and Telecommunications,2007,14(1):6-11. |
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| Authors: | XIAO Xiao ZHENG Bao-yu YAN Zhen-ya CHEN Chao |
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| Affiliation: | Institute of Signal and Information Processing, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | The design of media access control (MAC) protocol for wireless sensor networks (WSNs) with the idea of cross layer attracts more and more attention. People can improve the MAC protocol by obtaining certain information regarding the network layer and physical layer. This article synthesizes and optimizes certain cross-layer protocols which have existed. On the basis of the routing, topology information in the network layer, and transmission power information in the physical layer, the time slot assignment algorithm has been improved in the MAC layer. By using geographical adaptive fidelity algorithm (GAF) to divide the grids, controlling of transmission power and scheduling the work/sleep duty cycle for sensor nodes, a new MAC protocol has been proposed to decrease energy consumption and enlarge the lifetime of WSNs. Simulation results show that the MAC protocol functions well. |
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| Keywords: | power controlled time division multiple access (TDMA) WSNs MAC GAF |
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