A dual-channel MAC protocol with directional antennas for mobile ad-hoc networks

被引：1
|
作者：
Kang, Chang-Nam [1 ]
Yang, Doo-Yeong [1 ]
Jwa, Jeong-Woo [1 ]
机构：
[1] Jeju Natl Univ, Fac Telecommun & Comp Engn, Cheju, South Korea
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2007年 / E90B卷 / 11期
关键词：
ad-hoc networks; medium access control (MAC); dual-channel; directional antennas;
D O I：
10.1093/ietcom/e90-b.11.3266
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：
The directional MAC protocols improve spatial reuse, but require the exact location of destination and have the problem of deafness. In this paper, we propose a dual-channel MAC protocol with directional antennas for mobile ad-hoc networks. In the proposed MAC protocol, RTS/CTS are sent omnidirectionally as nodes do not have the exact location of the destination in mobile environments. Omnidirectional transmissions on control channel overcome deafness, but have low spatial reuse. We propose a new blocking algorithm to improve spatial reuse on control channel. We use the negative CTS (NCTS) to solve the exposed terminal problem. We confirm throughput of the proposed MAC protocol by simulations using Qualnet ver. 3.8 simulator.
引用
收藏
页码：3266 / 3270
页数：5
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