Optimal Cooperative Spectrum Aware Opportunistic Routing in Cognitive Radio Ad Hoc Networks

被引：8

作者：

Cui, Cuimei ^{[1
,2
,3
]}

Man, Hong ^{[2
]}

Wang, Yiming ^{[1
]}

Liu, Shuqi ^{[1
]}

机构：

[1] Soochow Univ, Sch Elect & Informat Engn, Suzhou, Peoples R China

[2] Stevens Inst Technol, Dept Elect & Comp Engn, Hoboken, NJ 07030 USA

[3] Inst Technol, Sch Elect & Photoelectron Engn, Changzhou, Peoples R China

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2016年 / 91卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Cognitive radio; Cooperative spectrum sensing; Opportunistic routing; Route discovery; METRICS;

D O I：

10.1007/s11277-016-3447-x

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Opportunistic cognitive routing coupled with dual-stage collaborative spectrum sensing in multi-channel multi-hop cognitive radio ad hoc networks (CRAHNs) is investigated in this work. Due to the dynamics of available spectrum and complex radio environment in CRAHNs, an opportunistic cognitive routing protocol is proposed, that exploits a dual-stage collaborative spectrum sensing (DCSS) scheme to improve spectrum availability under the effects of Primary Users' activities. Solutions to select the optimal routing path were provided by adopting the proposed two routing metrics with routing access opportunity and routing transmission delay. The expressions in terms of the proposed two routing metrics are analytically derived and validated. Performance evaluation is conducted through simulations, and simulation results reveal that routing access opportunity and expected transmission delay are improved by using the proposed DCSS scheme, compared with those using the single cooperative spectrum sensing scheme and non-cooperation sensing scheme. In addition, it is observed that the number of next hop neighboring nodes, the number of available channels, and hop counts also affect the routing establishment and expected transmission delay.

引用

页码：101 / 118

页数：18

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