Improving the reliability of IEEE 802.11 broadcast scheme for multicasting in mobile ad hoc networks

被引：0
|
作者：
Xie, JW [1 ]
Das, A [1 ]
Nandi, S [1 ]
Gupta, AK [1 ]
机构：
[1] Nanyang Technol Univ, Sch Comp Engn, Singapore 639798, Singapore
来源：
2005 IEEE Wireless Communications and Networking Conference, Vols 1-4: WCNC 2005: BROADBAND WIRELESS FOR THE MASSES READY FOR TAKE-OFF. | 2005年
关键词：
MAC; broadcast; acknowledge; bitmap; retransmit;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Broadcasting is one of the essential communication models of MANETs. Many MANET multicast routing protocols rely heavily upon MAC layer's broadcast support. However, the broadcast mechanism of the standard IEEE 802.11 cannot provide reliable broadcasting service, and therefore, degrades the multicasting performance. In this paper, we propose an extension to IEEE 802.11 broadcast mechanism, called Round-Robin Acknowledge and Retransmit (RRAR), to improve the reliability. Different from other mechanisms, we employ a simple and effective DATA/BrACK (Broadcast Acknowledgment) mechanism. Receiving the BrACK, the DATA sender calculates and records the indices of the frames that are lost and retransmits them. The proposed scheme provides a highly reliable broadcast service to the routing layer, and the performance of multicast routing protocols can be improved significantly.
引用
收藏
页码：126 / 131
页数：6
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