TITLE

Research on Vertical Handoff Decision Based on PROMETHEE Algorithm for Heterogeneous Wireless Networks

AUTHOR(S)
Liu Shengmei; Pan su; Mi Zhengkun
PUB. DATE
September 2012
SOURCE
International Journal of Advancements in Computing Technology;Sep2012, Vol. 4 Issue 17, p334
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The PROMETHEE (Preference Ranking Organization METHod for Enrichment Evaluation) algorithm is applied in the vertical handoff decision technology for heterogeneous wireless networks and researched on its performance. Four 3GPP defined traffic classes are considered in performance evaluation. An attribute matrix is constructed by considering the SINR in the source network and the equivalent SINR in the target network, the required bandwidth, the traffic cost and the available bandwidth of participating access networks. Handoff decision meeting multi-attribute QoS requirement is made according to the traffic features. The weight relation of decision elements is determined with Least Square (LS) method. Finally decision is made by using PROMETHEE algorithm based on the attribute matrix and weight vector . The simulation results show that the PROMETHEE algorithm can provide satisfactory vertical handoff performance and the proposed LS-PROMETHEE algorithm can be fit for the characteristics of the traffic.
ACCESSION #
98908454

 

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