Research on vertical handoff decision based on service history information and SINR for heterogeneous wireless networks

Liu, Shengmei; Su, Pan; Mi, Zhengkun

doi:10.1007/s11235-013-9676-3

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…3) handoff decision algorithm based on multi-attribute utility function, users make vertical handoff decision according to the access network, traffic and users, etc [20][21][22][23][24] ; Users construct the utility function according to each network's RSS, network bandwidth, service type and other performance parameters, compute the optimal utility function value to determine the optimal handoff network [25][26][27][28][29][30][31] . This algorithm can ensure the validity and reliability of the switching, but there are various attributes, which need to set as the weight parameter and exist the problem of structuring the optimal utility function.…”

Section: Introductionmentioning

confidence: 99%

An optimized vertical handoff algorithm based on Markov process in vehicle heterogeneous network

Hong

Xie

et al. 2015

China Commun.

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In order to solve the problem the existing vertical handoff algorithms of vehicle heterogeneous wireless network do not consider the diversification of network's status, an optimized vertical handoff algorithm based on markov process is proposed and discussed in this paper. This algorithm takes into account that the status transformation of available network will affect the quality of service (QoS) of vehicle terminal's communication service. Firstly, Markov process is used to predict the transformation of wireless network's status after the decision via transition probability. Then the weights of evaluating parameters will be determined by fuzzy logic method. Finally, by comparing the total incomes of each wireless network, including handoff decision incomes, handoff execution incomes and communication service incomes after handoff, the optimal network to handoff will be selected. Simulation results show that: the algorithm proposed, compared to the existing algorithm, is able to receive a higher level of load balancing and effectively improves the average blocking rate, packet loss rate and ping-pang effect.

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