Improving the Network Lifetime of MANETs through Cooperative MAC Protocol Design
Improving the Network Lifetime of MANETs through Cooperative MAC Protocol Design
复制标题
DOI：
10.1109/tpds.2013.110
复制
发表时间：
2015-04
影响因子：
5.3
通讯作者：
Xiaoyan Wang;Jie Li
中科院分区：
文献类型：
--
作者：
Xiaoyan Wang;Jie Li
协作通信利用邻近终端的侦听信息来实现分集增益，在提高无线网络传输效率方面具有巨大的潜力。为了处理由中继引起的复杂的介质访问交互，并充分利用这种协作的益处，需要一种高效的协作介质访问控制（CMAC）协议。本文提出了一种新的跨层分布式能量自适应的基于位置的CMAC协议，即DEL-CMAC，用于移动的自组织网络（MANDWORKS）。DEL-CMAC的设计目标是提高网络寿命和能源效率方面的性能的移动自组网。本文采用了一个实用的能耗模型，该模型考虑了收发器电路和发射放大器的能耗。一个分布式的效用为基础的最佳中继选择策略，选择最佳的中继的基础上的位置信息和剩余能量。此外，以提高空间复用为目的，提供了一种创新的网络分配矢量设置，以处理源和中继终端的发射功率变化。我们表明，建议DEL-CMAC显着延长网络寿命在各种情况下，即使是高电路能耗的情况下，通过全面的仿真研究。
Cooperative communication, which utilizes nearby terminals to relay the overhearing information to achieve the diversity gains, has a great potential to improve the transmitting efficiency in wireless networks. To deal with the complicated medium access interactions induced by relaying and leverage the benefits of such cooperation, an efficient Cooperative Medium Access Control (CMAC) protocol is needed. In this paper, we propose a novel cross-layer distributed energy-adaptive location-based CMAC protocol, namely DEL-CMAC, for Mobile Ad-hoc NETworks (MANETs). The design objective of DEL-CMAC is to improve the performance of the MANETs in terms of network lifetime and energy efficiency. A practical energy consumption model is utilized in this paper, which takes the energy consumption on both transceiver circuitry and transmit amplifier into account. A distributed utility-based best relay selection strategy is incorporated, which selects the best relay based on location information and residual energy. Furthermore, with the purpose of enhancing the spatial reuse, an innovative network allocation vector setting is provided to deal with the varying transmitting power of the source and relay terminals. We show that the proposed DEL-CMAC significantly prolongs the network lifetime under various circumstances even for high circuitry energy consumption cases by comprehensive simulation study.