D. Cabric, S. M. Mishra and R. W. Brodersen, “Implementation Issues in Spectrum Sensing for Cognitive Radios,” Proceedings of 38th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, 7-10 November 2004, Vol. 1, pp. 772-776.
 D. Cabric, A. Tkachenko and R. Brodersen, “Spectrum Sensing Measurements of Pilot Energy and Collaborative Detection,” Proceedings of IEEE Military Communication Conference, Washington DC, 23-25 October 2006, pp. 1-7.
 G. Ganesan and Y. Li, “Agility Improvement through Cooperative Diversity in Cognitive Radio,” Proceedings of IEEE Global Telecommunications Conference (Globecom), St. Louis, Vol. 5, 28 November-2 December 2005, pp. 2505-2509.
 G. Ganesan and Y. Li, “Cooperative Spectrum Sensing in Cognitive Radio, Part I: Two User Networks,” IEEE Transactions on Wireless Communications, Vol. 6, No. 6, 2007, pp. 2204-2213.
 G. Ganesan and Y. Li, “Cooperative Spectrum Sensing in Cognitive Radio, Part II: Multiuser Networks,” IEEE Transaction on Wireless Communications, Vol. 6, No. 6, 2007, pp. 2214-2222.
 R. Fan and H. Jiang, “Optimal Multi-Channel Cooperative Sensing in Cognitive Radio Networks,” IEEE Transaction on Wireless Communications, Vol. 9, No. 3, 2010, pp. 1128-1138.
 A. Ghasemi and E. S. Sousa, “Collaborative Spectrum Sensing for Opportunistic Access in Fading Environments,” Proceedings of the IEEE Dynamic Spectrum Access Networks, Baltimore, 8-11 November 2005, pp. 131-136.
 J. Shen, T. Jiang, S. Liu and Z. Zhang, “Maximum Channel throughput via Cooperative Spectrum Sensing in Cognitive Radio Networks,” IEEE Transaction on Wireless Communication, Vol. 8, No. 10, 2009, pp. 5166-5175.
 S. Atapattu, C. Tellambura and H. Jiang, “Energy Detection Based Cooperative Spectrum Sensing in Cognitive Radio Networks,” IEEE Transactions on Wireless Communications, Vol. 10, No. 4, 2011, pp. 1232-1241.
 Y. Yuan, P. Bhal, R. Chandra, P. Chou, J. Ferrell, T. Moscibroda, S. Narlanka and Y. Wu, “KNOWS: Cognitive Networking over White Spaces,” Proceedings of 2nd IEEE DySPAN, Dublin, 17-20 April 2007, pp. 416-427.
 J. Jia, Q. Zhang and X. Shen, “HC_MAC: A HardwareConstrained Cognitive MAC for Efficient Spectrum Management,” IEEE Journal on Selected Areas in Communications, Vol. 26, No. 1, 2008, pp. 106-117.
 V. Ashgari, D. B. da-Costa and S. Aissa, “Performance Analysis of Multihop Relaying Channels with Nakagami-m Fading: Ergodic Capacity Upper-Bounds and Outage Probability,” IEEE Transaction on Communication, Vol. 60, No. 10, 2012, pp. 2761-2767.
 E. Morgado, I. Mora-Jimenez, J. J. Vinagre, J. Ramos and A. J. Caamano, “End-to-End Average BER in Multihop Wireless Networks over Fading Channels,” IEEE Transaction on Wireless Communication, Vol. 9, No. 8, 2010, pp. 2478-2487.
 N. C. Beaulieu and J. Hu, “A Closed-Form Expression for the Outage Probability of Decode-and-Forward Relaying in Dissimilar Rayleigh Fading Channels,” IEEE Communication Letter, Vol. 10, No. 12, 2006,pp. 813-815.
 G. K. Karagiannidis, T. A. Tsiftsis and R. A. Mallik, “Bounds for Multihop Relayed Communications in Nakagami-m Fading,” IEEE Transactions on Communications, Vol. 54, No. 1, 2006, pp. 18-22.
 H. A. Suraweera and G. K. Karagiannidis, “Closed-Form Error Analysis of the Non-Identical Nakagami-m Relay Fading Channel,” IEEE Communications Letters, Vol. 12, No. 4, 2008, pp. 259-261.
 H. A. Suraweera, D. S. Michalopoulos and G. K. Karagiannidis, “Performance of Distributed Diversity Systems with a Single Amplify-and-Forward Relay,” IEEE Transactions on Vehicular Technology, Vol. 58, No. 5, 2009, pp. 2603-2608.
 N. C. Beaulieu and C. Cheng, “Efficient Nakagami-m Fading Channel Simulation,” IEEE Transaction on Vehicular Technology, Vol. 54, No. 2, 2005, pp. 413-424.
 M. O. Hasna and M. S. Alouini, “A Performance Study of Dual-Hop Transmissions with Fixed Gain Relays,” IEEE Transactions on Wireless Communications, Vol. 3, No. 6, 2004, pp. 1963-1968.
 Y. L. Zou, J. Zhu, B. Y. Zheng and Y.-D. Yao, “An Adaptive Cooperation Diversity Scheme with Best-Relay Selection in Cognitive Radio Networks,” IEEE Transactions on Signal Processing, Vol. 58, No. 10, 2010, pp. 54385445. http://dx.doi.org/10.1109/TSP.2010.2053708
 C. Tellambura, A. Annamalai and V. K. Bhargva, “Contour Integral Representation for Generalized Marcum-Q Function and Its Application to Unified Analysis of DualBranch Selection Diversity over Correlated Nakagami-m Fading Channels,” Proceeding of the 51st IEEE Vehicular Technology Conference, Tokyo, 15-18 May 2000, Vol. 2, pp. 1031-1034.
 S. Ikki and M. H. Ahmed, “Performance Analysis of Cooperative Diversity Wireless Networks over Nakagami-m Fading Channel,” IEEE Communications Letters, Vol. 11, No. 4, 2007, pp. 334-336.
 T. Wang, A. Cano, G. B. Giannakis and J. N. Laneman, “High Performance Cooperative Demodulation with Decode-and-Forward Relays,” IEEE Transaction on Communication, Vol. 55, No. 4, 2007, pp. 1427-1438.