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一种实现MIMO多包接收的Ad Hoc网络MAC协议 被引量：5

Novel MAC protocol for MIMO Ad Hoc networks with multi-packet reception
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摘要 MIMO技术可以同时接收多个数据包并能对它们进行有效的分离,是改善Ad Hoc网络系统性能的新途径。提出一种利用MIMO系统中MPR能力来提高网络吞吐量的MAC协议。它通过在回复CTS前接收多个RTS来最大化可以同时发送的链路数,接收节点根据自身的天线数目和接收到的RTS数目决定发送数据流数目。与现有的同类协议相比,该协议可以无差错地接收并分离出多个节点同时发送的数据,且在同一竞争区域内,允许多对节点同时通信。在OPNET仿真软件中,从业务负载、节点场景密度对其进行了网络仿真,并在结果分析中验证了MIMO MAC协议的综合性能优势。 MIMO systems are capable of capturing more than a single packet.Such a capability is known as multipacket reception,which is a new way to improve performance of Ad Hoc networks.To effectively enhance throughput of Ad Hoc networks, a novel MIMO MAC protocol with MIMO links that takes into account MPR is proposed.It can receive more than one RTS before responding CTS, which maximize transmit links simultaneously.Receiver determines links according to the number of antennas and RTS.Compared to the existing protocol, it can receive and separate data correctly from different transmitter,moreover it allows many communications at the same time in one competitive area.Finally,the simulations are implemented in terms of business load, node density in OPNET environment, the results show that MIMO MAC outperforms CSMA/CA and CSMA/CA（k）.
作者 崔苗 曹英烈 冯穗力
机构地区 广东工业大学 中国电子科技集团第七研究所 华南理工大学
出处 《计算机工程与应用》 CSCD 北大核心 2011年第6期15-19,共5页 Computer Engineering and Applications
基金 国家高技术研究发展计划(863)No.2008AA11A163 广东省科技计划项目(No.2009A010200006) 中国电子科技集团创新基金(No.JJ09010)~~
关键词 Ad HOC网络 多入多出系统 多包接收 媒体接入控制协议 Ad Hoc networks Multiple-Input Multiple-Output multi-packet reception Medium Access Control（MAC）
分类号 TP393 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献15

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二级参考文献12

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共引文献9

同被引文献40

  • 1安红章,谢上明.移动Ad Hoc网络MAC协议综述[J].信息安全与通信保密,2006,28(5):112-115. 被引量：6
  • 2王春霞.Adhoc网络中MAC层协议研究[J].菏泽学院学报,2006,28(2):24-27. 被引量：1
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引证文献5

二级引证文献2

计算机工程与应用
2011年 第6期

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