Interference Performance Evaluation of Secondary Users in Cognitive Radio Networks

被引：0
|
作者：
Ain-ul-Aisha [1 ]
Mayekar, Nikita [1 ]
Wyglinski, Alexander M. [1 ]
机构：
[1] Worcester Polytech Inst, Dept Elect & Comp Engn, Worcester, MA 01609 USA
来源：
2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2015年
关键词：
Cognitive radio networks; imperfect spectrum availability information; probability of error; bandwidth overlap;
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：
In this paper, we analyze the probability of error for secondary users employed in a cognitive radio network operating within the vicinity of several primary users. Secondary( unlicensed) users must coexist with primary(licensed) users, ensuring that the legacy rights of the primary user transmissions are respected. Consequently, the secondary users must either sense the channel periodically, which has some detection delay, or must check a spectrum availability database, which may not be updated in real-time. Hence, there will be times when the primary user and the secondary user will occupy the same band and interfere with each other. The aim of this paper is to quantify the impact of the probability of error of the secondary user when it does not react quickly enough to the presence of a primary user. Several numerical examples are provided in order illustrate the analytical results.
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页数：5
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