Analysis of Spectrum Sensing based on Energy detection method in Cognitive Radio Networks

被引：0
|
作者：
Swetha, N. [1 ]
Sastry, Panyam Narahari [2 ]
Rao, Y. Rajasree [3 ]
机构：
[1] GRIET, Dept ECE, Hyderabad 500081, Andhra Pradesh, India
[2] CBIT, Dept ECE, Hyderabad 500075, Andhra Pradesh, India
[3] Ibri Coll Technol, Dept ECE, Ibri, Oman
来源：
2014 INTERNATIONAL CONFERENCE ON IT CONVERGENCE AND SECURITY (ICITCS) | 2014年
关键词：
Cognitive radio; Energy detection; Additive White Guassian Noise(AWGN); DVB-T;
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：
Spectrum sensing is an important aspect that maximizes the opportunistic usage of available spectrum. The cognitive/secondary users have to sense the spectrum repeatedly to prevent interference to licensed users. In this paper, an improved spectrum sensing model is proposed using energy detection technique. Using Central Limit theorem, an appropriate threshold is derived and the test statistics is obtained for Additive White Guassian Noise channel. The relation between detection probability and false alarm probability is derived. Computer Simulations were shown that an improved Pd can be obtained for QPSK and DVB-T signals.
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页数：4
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