A Relay Aided Media Access Protocol for Wireless Networks

ZOU Shi-hong; WANG Wen-dong; LI Bo; ZHANG Qian; CHENG Shi-duan

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A Relay Aided Media Access Protocol for Wireless Networks

更新时间：2025-07-16

- A Relay Aided Media Access Protocol for Wireless Networks
- Acta Electronica Sinica Vol. 34, Issue 1, Pages: 11-18(2006)
- 作者机构：
  
  1. 北京邮电大学网络与交换技术国家重点实验室,北京,100876
  2. 香港科技大学计算机科学系,香港
  4. 香港科技大学计算机科学系香港
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN393.1
- Published：2006
- 稿件说明：
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ZOU Shi-hong, WANG Wen-dong, LI Bo, et al. A Relay Aided Media Access Protocol for Wireless Networks[J]. Acta Electronica Sinica, 2006, 34(1): 11-18.
DOI：

ZOU Shi-hong, WANG Wen-dong, LI Bo, et al. A Relay Aided Media Access Protocol for Wireless Networks[J]. Acta Electronica Sinica, 2006, 34(1): 11-18. DOI：

摘要

IEEE 802.11在物理层支持多速率.目前已提出许多机制通过自动调整速率充分利用多速率能力.本文观察到在无线网络中

相对于单跳的低速率链路

多跳高速率的路径可以减少信道占用时间

并提出了中继协助的媒体接入协议(Relay Aided Media Access

RAMA).RAMA利用中继节点将一跳低速链路拆为两跳高速链路.大量仿真结果表明

RAMA能够提供更好的吞吐量和时延性能.

Abstract

This paper introduces a Relay Aided Media Access (RAMA) protocol by taking advantage of the existence of multihop high rate links.The mechanism in RAMA protocol is demonstrated by replacing one low rate link with two high rate links with the assistance of relay.One of the key novelties in the proposed RAMA protocol is that the transmission from the immediate relay node to the destination node is free of contention.Results from analysis and simulations show that RAMA can significantly improve the network throughput and reduces the delay.

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