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In heterogeneous wireless network environment, wireless local area network (WLAN) are usually deployed within the coverage of a cellular network to provide users with the convenience of seamless roaming among heterogeneous wireless access networks. Vertical handoffs between the WLAN and the cellular network could occur frequently, with regard to vertical handoff performance, there is a critical need for developing algorithms for connection management and optimal resource allocation for seamless mobility. In this paper, we develop a mathematical model for vertical handoff decision problem, propose an artificial simple harmonic oscillator immune algorithm-based vertical handoff decision scheme, and perform the simulation experiments to validate proposed solution. Experimental result shows that the proposed solution, compared with literature solutions, can not only balance the overall load among all networks but also increase the collective battery lifetime of mobile terminals, and has the advantage of good application value.
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Keywords:
- simple harmonic oscillator algorithm /
- immune Optimization algorithm /
- heterogeneous wireless network /
- vertical handoff decision problem
[1] Zhang P, Feng Z Y 2010 Cognitive Wireless Network (Beijing: Posts and Telecomm Press) p10---15 (in Chinese) [张平, 冯志勇 2010 认知无线网络 (北京: 人民邮电出版社) 第1---5页]
[2] Liu S M, Pan S, Mi Z K 2010 International Conference on Intelligent Computation Technology and Automation 1 347
[3] Kumudu S M, Abbas J 2010 Computers and Electrical Engineering 36 735
[4] Kaveh S, Alireza A, Victor C M 2011 IEEE Journal on Selected Areas in Communications 29 534
[5] Liu X W, Fang X M, Chen X, Peng X S 2011 Journal of Network and Computer Applications 51 125
[6] Chi S, Enrique S N, Vahid S M 2011 Wireless Networks 62 136
[7] Song Y L 2010 Acta. Phys. Sin. 59 2344 (in Chinese) [宋艳丽 2010 物理学报 59 2344]
[8] Ling R L, Feng J F, Hu Y 2010 Acta. Phys. Sin. 590 759 (in Chinese) [凌瑞良, 冯金福, 胡云 2010 物理学报 59 0759]
[9] Chai Z Y, Liu F 2010 Journal on Communications 31 92 (in Chinese) [柴争义, 刘芳 2010 通信学报 31 92]
[10] Zhu S F, Liu F, Chai Z Y 2011 Journal on Communications 32 106 (in Chinese) [朱思峰, 刘芳, 柴争义 2011 通信学报 32 106]
[11] Bettstetter C, Resta G, Santi P 2003 IEEE Trans on Mobile Computing 3 257
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[1] Zhang P, Feng Z Y 2010 Cognitive Wireless Network (Beijing: Posts and Telecomm Press) p10---15 (in Chinese) [张平, 冯志勇 2010 认知无线网络 (北京: 人民邮电出版社) 第1---5页]
[2] Liu S M, Pan S, Mi Z K 2010 International Conference on Intelligent Computation Technology and Automation 1 347
[3] Kumudu S M, Abbas J 2010 Computers and Electrical Engineering 36 735
[4] Kaveh S, Alireza A, Victor C M 2011 IEEE Journal on Selected Areas in Communications 29 534
[5] Liu X W, Fang X M, Chen X, Peng X S 2011 Journal of Network and Computer Applications 51 125
[6] Chi S, Enrique S N, Vahid S M 2011 Wireless Networks 62 136
[7] Song Y L 2010 Acta. Phys. Sin. 59 2344 (in Chinese) [宋艳丽 2010 物理学报 59 2344]
[8] Ling R L, Feng J F, Hu Y 2010 Acta. Phys. Sin. 590 759 (in Chinese) [凌瑞良, 冯金福, 胡云 2010 物理学报 59 0759]
[9] Chai Z Y, Liu F 2010 Journal on Communications 31 92 (in Chinese) [柴争义, 刘芳 2010 通信学报 31 92]
[10] Zhu S F, Liu F, Chai Z Y 2011 Journal on Communications 32 106 (in Chinese) [朱思峰, 刘芳, 柴争义 2011 通信学报 32 106]
[11] Bettstetter C, Resta G, Santi P 2003 IEEE Trans on Mobile Computing 3 257
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