An Efficient Split-Channel MAC Protocol for Multihop Wireless Networks

被引：0
|
作者：
Du, Shuai [1 ]
Du, Xiaoping [1 ]
Liu, Kai [2 ]
机构：
[1] Beihang Univ, Sch Software, Beijing, Peoples R China
[2] Beihang Univ, Sch Elect & Informat Engn, Beijing, Peoples R China
来源：
2014 9TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA (CHINACOM) | 2014年
关键词：
multihop wireless networks; medium access control; multichannel; reservation; collision avoidance;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new slotted split-channel medium access control (SSC-MAC) protocol is proposed for multihop wireless networks to maximize concurrent packet transmissions. By adjusting the relationship between the reservation slot (RS) on the control channel (CCH), data packet transmission slot (TS) on the data channel (DCH) and acknowledgment slot (AS) on the acknowledgment channel (ACH), the channel reservation, data packets and their confirmation can be simultaneously transmitted on the CCH, DCH and ACH with fewer reservation collisions. Multichannel hidden and exposed terminal problems are also alleviated to greatly improve the channel access efficiency. Transmission interferences can be avoided by only observing CCH for the transmission time of a data packet. Numerical results show that compared to the IEEE 802.11 DCF protocol, SSC-MAC has obvious performance improvement under the same total data rate.
引用
收藏
页码：357 / 360
页数：4
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