| 一种用于无线自组织网络的并发传输MAC协议 |
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| 引用本文： | 虞万荣,王晓东,周兴铭.一种用于无线自组织网络的并发传输MAC协议[J].电子学报,2006,34(8):1433-1437. |
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| 作者姓名： | 虞万荣 王晓东 周兴铭 |
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| 作者单位： | 国防科学技术大学计算机学院,湖南长沙 410073 |
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| 摘 要： | 本文提出一种工作在单信道、单发射器和单发射功率模式下的并发传输MAC协议.该协议在控制报文(RTS/CTS)和数据报文(DADA/ACK)之间插入附加控制时隙,以便相邻节点有机会交换自己的控制报文.为了保证并发传输的可靠性,协议在控制报文中包含了冲突避免信息,邻居节点根据这些信息判断自己的传输能否在不影响已有传输的情况下并发进行.模拟结果显示,与IEEE 802.11相比,CTMAC协议在网络中存在并发可能时,使系统吞吐量得到很大提高.
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| 关 键 词： | 无线自组织网络 并发传输 吞吐量 MAC协议 IEEE 802. 11 |
| 文章编号： | 0372-2112（2006）08-1433-05 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-10-102006-02-20 |
Concurrent Transmission MAC Protocol for Wireless Ad Hoc Networks |
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| YU Wan-rong,WANG Xiao-dong,ZHOU Xing-ming.Concurrent Transmission MAC Protocol for Wireless Ad Hoc Networks[J].Acta Electronica Sinica,2006,34(8):1433-1437. |
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| Authors: | YU Wan-rong WANG Xiao-dong ZHOU Xing-ming |
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| Affiliation: | School of Computer,National University of Defense Technology,Changsha,Hunan 410073,China |
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| Abstract: | We present a novel concurrent transmission MAC protocol for MANETs which enjoys the simple design of single-channel,single-transceiver and single-transmission power architecture.The proposed protocol inserts additional control gap between the transmission of control packets(RTS/CTS) and DATA packet,which allows a serious of RTS/CTS exchanges to take place before the possible multiple,concurrent data transmissions.To assure these concurrent data transmissions finishing correctly,the collision avoidance information is included in control packets.These information are used by neighboring nodes to determine whether begin their transmissions or not,as in traditional transmission power control schemes.Simulation results show that,compared with IEEE 802.11,significant throughput gain can be obtained by the proposed protocol. |
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| Keywords: | IEEE802 11 |
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