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A swarm initialization method is proposed for modified shuffled frog leaping algorithm (SFLA) for linear combination cooperative spectrum sensing in cognitive radio. The solution obtained by modified deflection coefficient optimization is included in the initial swarm of SFLA, thus improving the performance of the algorithm at the early stage of the search. Simulations show that compared with the traditional swarm initialization technique, the proposed swarm initialization can obtain expected solutions faster, which means that the proposed technique can save computation time and is more suitable for real time applications.
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Keywords:
- cognitive radio /
- spectrum sensing /
- shuffled frog leaping algorithm /
- swarm initialization
[1] Haykin S 2005 IEEE Journal on Selected Areas in Communications 23 201
[2] Zhao Z J, Zheng S L, Shang J N, Kong X Z 2007 Acta Phys. Sin. 56 6760 (in Chinese) [赵知劲, 郑仕链, 尚俊娜, 孔宪正 2007 物理学报 56 6760]
[3] Zhao Z J, Peng Z, Zheng S L, Xu S Y, Lou C Y, Yang X N 2009 Acta Phys. Sin. 58 1358 (in Chinese) [赵知劲, 彭振, 郑仕链, 徐世宇, 楼才义 2009 物理学报 58 1358]
[4] Akyildiz I F, Lo B F, Balakrishnan R 2010 Physical Communication 4 40
[5] Quan Z, Cui S, Sayed A H 2008 IEEE Journal of Selected Topics in Signal Processing 2 28
[6] Zheng S L, Lou C Y, Yang X N 2010 Acta Phys. Sin. 59 3611 (in Chinese) [郑仕链, 楼才义, 杨小牛 2010 物理学报 59 3611]
[7] Zheng S, Lou C, Yang X 2010 Electron. Lett. 46 1525
[8] Eusuff M M, Lansey K E 2003 Water Resources Planning Management 129 210
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[1] Haykin S 2005 IEEE Journal on Selected Areas in Communications 23 201
[2] Zhao Z J, Zheng S L, Shang J N, Kong X Z 2007 Acta Phys. Sin. 56 6760 (in Chinese) [赵知劲, 郑仕链, 尚俊娜, 孔宪正 2007 物理学报 56 6760]
[3] Zhao Z J, Peng Z, Zheng S L, Xu S Y, Lou C Y, Yang X N 2009 Acta Phys. Sin. 58 1358 (in Chinese) [赵知劲, 彭振, 郑仕链, 徐世宇, 楼才义 2009 物理学报 58 1358]
[4] Akyildiz I F, Lo B F, Balakrishnan R 2010 Physical Communication 4 40
[5] Quan Z, Cui S, Sayed A H 2008 IEEE Journal of Selected Topics in Signal Processing 2 28
[6] Zheng S L, Lou C Y, Yang X N 2010 Acta Phys. Sin. 59 3611 (in Chinese) [郑仕链, 楼才义, 杨小牛 2010 物理学报 59 3611]
[7] Zheng S, Lou C, Yang X 2010 Electron. Lett. 46 1525
[8] Eusuff M M, Lansey K E 2003 Water Resources Planning Management 129 210
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