Peak to average power ratio based spatial spectrum sensing for cognitive radio systems

被引：2

作者：

Iqbal, Muhammad Shahid ^{[1
]}

Hussain, Sajjad ^{[2
]}

Ghafoor, Abdul ^{[3
]}

机构：

[1] KOC Univ, Elect & Elect Engn, Istanbul, Turkey

[2] Univ Glasgow, Sch Engn, Glasgow, Lanark, Scotland

[3] Natl Univ Sci & Technol, Elect Engn Dept, Islamabad, Pakistan

来源：

COMPUTERS & ELECTRICAL ENGINEERING | 2017年 / 63卷

关键词：

Spatial spectrum sensing; Stream multiplexing; Transmit diversity; Peak to average power ratio; ENERGY DETECTION; DIVERSITY; EVOLUTION; LTE;

D O I：

10.1016/j.compeleceng.2017.09.005

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The recent convergence of wireless standards for incorporation of spatial dimension it wireless systems has made spatial spectrum sensing based on Peak to Average Power Rath (PAPR) of the received signal, a promising approach. This added dimension is principaly exploited for stream multiplexing, user multiplexing and spatial diversity. Considering such a wireless environment for primary users, we propose an algorithm for spectrum sensing by secondary users which are also equipped with multiple antennas. The proposed spatial spectrum sensing algorithm is based on the PAPR of the spatially received signals Simulation results show the improved performance once the information regarding spatial diversity of the primary users is incorporated in the proposed algorithm. Moreover through simulations a better performance is achieved by using different diversity scheme and different parameters like sensing time and scanning interval. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：30 / 40

页数：11

共 24 条

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