Is a Multi-Hop Relay Scheme Gainful in an IEEE 802.22-Based Cognitive Radio System?

被引：2
|
作者：
Shin, Jungchae [1 ]
Lee, Dong-Kyu
Cho, Ho-Shin [1 ]
机构：
[1] Kyungpook Natl Univ, Taegu, South Korea
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2009年 / E92B卷 / 11期
关键词：
cognitive radio; multi-hop; relay; radio resource management;
D O I：
10.1587/transcom.E92.B.3528
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：
In this paper, we formulate a plan to operate multi-hop relays in IEEE 802.22-based cognitive radio (CR) systems and evaluate system performance to consider the propriety of a multi-hop relay scheme in CR systems. A centralized radio resource management and a simple deployment of relay stations (RSs) are assessed to make relay operations feasible under CR conditions. Simulation results show that the proposed multi-hop relay scheme significantly increases system throughput compared to a no-relay CR system as the incumbent user (IU) traffic gets heavier. Furthermore, the optimal number of hops can be determined given the traffic conditions.
引用
收藏
页码：3528 / 3532
页数：5
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