ROADMAP: a robust ACK-driven media access protocol for mobile ad hoc networks

2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277) Pub Date : 2001-10-28 DOI:10.1109/MILCOM.2001.985986

Dongkyun Kim, C. Toh, Yanghee Choi

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引用次数: 7

Abstract

A new and reliable MAC protocol is proposed to reduce the number of control handshake messages, such as RTS (Request-To-Send) and CTS (Clear-To-Send), incurred prior to data transmission in ad hoc wireless networks. Such a handshake is currently being used in the IEEE 802.11 DFWMAC (Distributed Foundation Wireless MAC) protocol. Our protocol is power efficient since fewer control messages are being used. By overhearing the ACK message sent by the upstream node, a node can gain advance knowledge that data would be arriving and hence need only to initiate a CTS later on. In addition to this, we introduce reliability into the protocol using an acknowledgment message to indicate that the data transmitted has been reliably received. Issues related to collision of control messages are also addressed in this paper. The communication performance of our protocol is evaluated via simulation and we also compare it with the IEEE 802.11 DFWMAC. Results show that our protocol outperforms DFWMAC with fewer control overheads incurred and smaller end-to-end delay.

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路线图:用于移动自组织网络的健壮的ack驱动媒体访问协议

提出了一种新的、可靠的MAC协议，以减少在自组织无线网络中数据传输之前产生的控制握手消息的数量，如RTS (Request-To-Send)和CTS (Clear-To-Send)。这种握手方式目前正在IEEE 802.11 DFWMAC(分布式基础无线MAC)协议中使用。我们的协议是节能的，因为使用的控制消息更少。通过监听上游节点发送的ACK消息，节点可以提前知道数据即将到达，因此只需要稍后启动CTS。除此之外，我们使用确认消息将可靠性引入协议，以表明传输的数据已被可靠地接收。本文还讨论了与控制消息冲突相关的问题。通过仿真对协议的通信性能进行了评估，并与IEEE 802.11 DFWMAC进行了比较。结果表明，我们的协议以更少的控制开销和更小的端到端延迟优于DFWMAC。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)

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