Integration of 3G networks and wireless local area networks is a trend of the next generation mobile communication. Vertical handoff is the basic requirement for convergence of different access technologies, and therefore receives much attention from the academia and industry. This paper analyzes tradition algorithms and proposes a new algorithm that can adjust parameters according to the business and network status. Simulation results show that the proposed algorithm has low blocking rate, low average time delay, and high bandwidth usage.
JIN Yan-liang, BAI Zhi-shu, ZHOU Xu-qin, MA Wei
. Adaptive vertical handoff algorithm in heterogeneous network[J]. Journal of Shanghai University, 2015
, 21(4)
: 414
-421
.
DOI: 10.3969/j.issn.1007-2861.2014.05.013
[1] 朱东照. 3G 网络与WLAN 协同规划之探讨[J]. 邮电设计技术, 2009(9): 1-5.
[2] Yan X, Sekercioglu Y A, Narayanan S. A survey of vertical handover decision algorithms in fourth generation heterogeneous wireless networks [J]. Computer Networks, 2010(54): 1848-1863.
[3] Zahran A H, Liang B, Saleh A. Signal threshold adaptation for vertical handoff in heterogeneous wireless networks [J]. Mobile Networks and Applications, 2006, 11(4): 625-640.
[4] Chang B J, Chen J F. Cross-layer-based adaptive vertical handoff with predictive RSS in heterogeneous wireless networks [J]. IEEE Transactions on Vehicular Technology, 2008, 67(6): 3679-3692.
[5] Nasser N, Hasswa A, Hassanein H. Handoffs in fourth generation heterogeneous networks [J]. Communication Magazine, 2006, 44(10): 96-103.
[6] 方飞, 李云. 无线异构网络的垂直切换判决算法[J]. 通信技术, 2010, 43(6): 137-139.
[7] Soria-Olivas E, Martin-Guerrero J D, Camps-Valls G, et al. A low-complexity fuzzy activation function for artificial neural networks [J]. IEEE Transactions on Neural Networks,
2003, 57(2): 1243-1254.
[8] 石文孝, 范绍帅, 王柟, 等. 基于模糊神经网络的异构无线网络接入选择算法[J]. 通信学报, 2010, 31(9): 151-156.
[9] Ayyappan K, Narasimman K, Dananjayan P. SINR based vertical handoff scheme for QoS in heterogeneous wireless networks [C]//International Conference on Future Computer and Communication. 2009: 117-121.
[10] Li B, Shi W X, Zhao Y. A load balancing algorithm based on dividing IP flow for high-speed traffic over heterogeneous wireless networks [C]//3rd International Congress on Image and
Signal Processing. 2010: 4294-4298.