Volume 1, Issue 1, November 2012, Pages 84–93
Mohammad Alamgir Hossain1, Md. Shamim Hossain2, and Md. Ibrahim Abdullah3
1 Islamic University, Bangladesh
2 Dept. of CSE, Islamic University, Bangladesh
3 Dept. of CSE, Islamic University, Bangladesh
Original language: English
Copyright © 2012 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Spectrum sensing is the key component of cognitive radio technology. Spectrum sensing is a tough task because of shadowing, fading, and time-varying nature of wireless channels. However, detection is compromised when a user experiences shadowing or fading effects. In such cases, user cannot distinguish between an unused band and a deep fade. Thus, cooperative spectrum sensing is proposed to optimize the sensing performance. We focus performance of cooperative spectrum sensing over Rayleigh and Nakagami fading channel with comparable non-fading AWGN channel in cognitive radio. This paper presents a simulation comparison of these fading channels based on fusion rule OR-rule, AND-rule and MAJORITY-rule. We observe that spectrum sensing is harder in presence of Rayleigh and Nakagami fading and performance of energy detection degrades more in Nakagami channels than Rayleigh channel and non-fading AWGN channel.
Author Keywords: Cognitive radio, fusion rules, cooperative spectrum sensing, fading channels, energy detection.
Mohammad Alamgir Hossain1, Md. Shamim Hossain2, and Md. Ibrahim Abdullah3
1 Islamic University, Bangladesh
2 Dept. of CSE, Islamic University, Bangladesh
3 Dept. of CSE, Islamic University, Bangladesh
Original language: English
Copyright © 2012 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Spectrum sensing is the key component of cognitive radio technology. Spectrum sensing is a tough task because of shadowing, fading, and time-varying nature of wireless channels. However, detection is compromised when a user experiences shadowing or fading effects. In such cases, user cannot distinguish between an unused band and a deep fade. Thus, cooperative spectrum sensing is proposed to optimize the sensing performance. We focus performance of cooperative spectrum sensing over Rayleigh and Nakagami fading channel with comparable non-fading AWGN channel in cognitive radio. This paper presents a simulation comparison of these fading channels based on fusion rule OR-rule, AND-rule and MAJORITY-rule. We observe that spectrum sensing is harder in presence of Rayleigh and Nakagami fading and performance of energy detection degrades more in Nakagami channels than Rayleigh channel and non-fading AWGN channel.
Author Keywords: Cognitive radio, fusion rules, cooperative spectrum sensing, fading channels, energy detection.
How to Cite this Article
Mohammad Alamgir Hossain, Md. Shamim Hossain, and Md. Ibrahim Abdullah, “Cooperative Spectrum Sensing over Fading Channel in Cognitive Radio,” International Journal of Innovation and Applied Studies, vol. 1, no. 1, pp. 84–93, November 2012.
