Simultaneous Detection and Estimation based Spectrum Sharing in Cognitive Radio Networks

被引:0
作者
Mansukhani, Jyoti [1 ]
Ray, Priyadip [1 ]
Varshney, Pramod K. [2 ]
机构
[1] Indian Inst Technol, Kharagpur 721302, W Bengal, India
[2] Syracuse Univ, Syracuse, NY 13244 USA
来源
CONFERENCE RECORD OF THE 2014 FORTY-EIGHTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS | 2014年
关键词
PERFORMANCE ANALYSIS; SENSING ALGORITHMS;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A new spectrum sharing strategy based on coupled detection and estimation is proposed for cognitive radio networks. The strategy consists of the following steps: First the secondary user (SU) listens to the spectrum allocated to the primary user (PU) to detect the state of the PU and transmits if the PU is inactive. However, if the PU is active, the SU estimates the PU location and then makes a decision about the reliability of the estimate. The SU transmits via beamforming, with a null in the estimated direction of the PU, only when the estimate is classified as reliable. Therefore, the proposed method is able to trade-off throughput for reduced interference at the PU. We formulate this problem mathematically and derive the optimum strategy that maximizes the throughput of the cognitive radio system under average interference power constraint at the PU. Finally, we provide simulation results to demonstrate the performance of the proposed spectrum sharing strategy.
引用
收藏
页码:1088 / 1092
页数:5
相关论文
共 19 条
[1]  
Ben-Tal A., 2001, Lectures on modern convex optimization, DOI 10.1137/1.9780898718829.ch6
[2]   Signature based spectrum sensing algorithms for IEEE 802.22 WRAN [J].
Chen, Hou-Shin ;
Gao, Wen ;
Daut, David G. .
2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14, 2007, :6487-+
[3]   PERFORMANCE ANALYSIS OF A NULL-STEERING ALGORITHM BASED ON DIRECTION-OF-ARRIVAL ESTIMATION [J].
FRIEDLANDER, B ;
PORAT, B .
IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1989, 37 (04) :461-466
[4]   PERFORMANCE ANALYSIS OF BEARING-ONLY TARGET LOCATION ALGORITHMS [J].
GAVISH, M ;
WEISS, AJ .
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1992, 28 (03) :817-828
[5]   Fundamental limits of spectrum-sharing in fading environments [J].
Ghasemi, Amir ;
Sousa, Elvino S. .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2007, 6 (02) :649-658
[6]   Joint power control and beamforming for cognitive radio networks [J].
Islam, Md Habibul ;
Liang, Ying-Chang ;
Hoang, Anh Tuan .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2008, 7 (07) :2415-2419
[7]   Sensing-Based Spectrum Sharing in Cognitive Radio Networks [J].
Kang, Xin ;
Liang, Ying-Chang ;
Garg, Hari Krishna ;
Zhang, Lan .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2009, 58 (08) :4649-4654
[8]  
Kay S., 1998, FUNDAMENTALS STAT SI
[9]   Cognitive radio: Making software radios more personal [J].
Mitola, J ;
Maguire, GQ .
IEEE PERSONAL COMMUNICATIONS, 1999, 6 (04) :13-18
[10]  
Monzingo R., 2011, Introduction to Adaptive Arrays, V2nd