Parallel MAC protocol based on geographical location information and power control in ad hoc networks

LEI Lei; XU Zong-ze

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Parallel MAC protocol based on geographical location information and power control in ad hoc networks

更新时间：2024-10-14

- Parallel MAC protocol based on geographical location information and power control in ad hoc networks
- Issue 9, Pages: 81-90(2008)
- 作者机构：
  
  南京航空航天大学信息科学与技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.5
- Published：2008
- 稿件说明：
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LEI Lei, XU Zong-ze. Parallel MAC protocol based on geographical location information and power control in ad hoc networks[J]. 2008, (9): 81-90.
DOI：

LEI Lei, XU Zong-ze. Parallel MAC protocol based on geographical location information and power control in ad hoc networks[J]. 2008, (9): 81-90. DOI：

摘要

对暴露终端并行传输产生的冲突干扰问题进行了研究

并在此基础上提出了一种基于地理位置信息和功率控制的ad hoc网络并行MAC协议。该协议利用地理位置信息判断节点的暴露终端身份

并在暴露终端发起的并行传输中引入了功率控制机制。在并行传输发送成功概率较低的情况下

该协议通过随机退避机制限制并行传输发起的次数

避免了失败的并行传输对其他接收节点产生干扰并导致节点产生不必要的能耗。仿真证明

该协议在显著提高ad hoc网络平均吞吐量的同时

还能有效节省节点的平均能耗

从而延长节点的工作时间和网络的生存时间。

Abstract

The conflict interference produced by the parallel transmission of the exposed nodes was investigated

and a parallel MAC protocol based on geographical location information and power control in ad hoc networks was proposed.This protocol identified the exposed nodes by their geographical location information and introduced the power control mechanism into the parallel transmission of the exposed nodes.When the probability of the successful parallel transmis-sion was low

the protocol reduced the parallel transmissions by using the random backoff mechanism

thus avoided the interference caused by the failed parallel transmission and the energy consumption of the nodes.The simulation results show that

compared with the DCF protocol

this new protocol can improve the average throughput of the network sig-nificantly and save the average energy consumption of the nodes simultaneously

thus prolong the lifetime of the nodes and the network.

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