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基于多步信道预约机制的多址接入协议研究 被引量:1

Research of a MAC Protocol Based on Multiple-step Channel Reservation Mechanism
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摘要 无线自组织网络(Ad Hoc网络)中实时业务的传输需要网络协议提供较为可靠的服务质量保证(QoS保证),而现有多址接入协议一般未能提供较好的QoS支持。在单步信道预约思想的基础上,提出了一种基于更为可靠的多步信道预约机制的多址接入协议,其利用实时业务分组的周期性特点,对无线信道资源进行多步预约,从而保证了实时业务的可靠传输。仿真实验表明,相较于单步信道预约机制,多步信道预约机制对网络的多址接入性能有较好的改进。 Real-time traffic transmission over wireless Ad hoc networks requires authentic and reliable QoS assurance from wireless network protocols,which is not available from most of the current MAC protocols.Considering the periodicity of real-time traffic,a MAC protocol based on multiple-step channel reservation mechanism was proposed,which guarantees more reliable transmission for real-time frames.Simulation results and analysis obviously indicate that the protocol raises the network performance to a more excellent level.
作者 陈轶 李波
出处 《计算机科学》 CSCD 北大核心 2011年第3期70-72,110,共4页 Computer Science
基金 自然科学基金(60872045 60572144) 教育部新世纪优秀人才支持计划(CET-06-0876) 西北工业大学基础研究基金(W018105) 西北工业大学科技创新基金(2008KJ01005) 航空科学基金项目(20095553026)资助
关键词 多步信道预约 多址接入协议 无线自组织网络 服务质量保证 Multiple-step reservation MAC protocol Ad hoc QoS
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参考文献6

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