A Distributed Routing and Time-slot Assignment Algorithm for Cognitive Radio Ad Hoc Networks with Primary-User Protection

被引：0

作者：

Chen, Hao ^{[1
]}

Ren, Pinyi ^{[1
]}

Sun, Li ^{[1
]}

Du, Qinghe ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China

来源：

2012 7TH INTERNATIONAL ICST CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA (CHINACOM) | 2012年

关键词：

Cognitive Radio; Distributed Routing; Time-slot Assignment; Primary-user Protection; PROTOCOL;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Cognitive Radio (CR) technology enables Secondary Users (SUs) to transparently utilize the licensed spectrum bands while causing limited interference to Primary Users (PUs). In this paper, a distributed routing and time-slot assignment (DRTSA) algorithm is proposed to address the PU protection issue. Specifically, we first design a proper routing metric for distributed path selection and then we propose a time-slot assignment algorithm to improve SUs' capacity and reduce the interference to PU as well. Theoretical analysis shows that the complexity of DRTSA is no more than O(NTlogN), where N and T denote the number of nodes and the time-slot period in the network respectively. Simulation results show that, under various network scenarios, the performance of the proposed distributed algorithm can approach that of the centralized alternatives.

引用

页码：470 / 474

页数：5

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