Cognitive Temporary Bypassing for Reliable Multi-Hop Transmission in Wireless Ad Hoc Networks

被引：4
|
作者：
Nagao, Kenichi [1 ]
Yamao, Yasushi [2 ]
机构：
[1] NTT DoCoMo, Yokosuka, Kanagawa 2398536, Japan
[2] Univ Elect Commun, Chofu, Tokyo 1828585, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2010年 / E93B卷 / 12期
关键词：
ad hoc; multi hop; fading; routing bypass;
D O I：
10.1587/transcom.E93.B.3391
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：
Multi hop wireless ad hoc networks suffer from temporary link error due to fading In order to improve packet transmission reliability and achieve efficient transmission in fading environment a new cognitive temporary bypassing scheme is proposed based on a cross layer approach and cognitive behavior of local nodes The proposed scheme enables neigh boring nodes to prepare and create a temporary bypass for lost packets This is done by monitoring message packets that include information of the multi hop route and link acknowledgement The scheme also includes an anti collision function that is necessary to prevent contention among multi pie bypassing nodes Packet success probability with the proposed scheme is studied both by theoretical analysis and time domain computer simulation for Rayleigh faded single and multi hop links Network simulation using a modified QualNet simulator validate that packet success probability is remarkably improved with the scheme for maximum Doppler frequencies up to 30 Hz
引用
收藏
页码：3391 / 3399
页数：9
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