Research on vertical handoff decision based on service history information and SINR for heterogeneous wireless networks
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In this letter, we propose a SH (Service History) and SINR (Signal to Interference plus Noise Ratio) based PROMETHEE (SHS-PROMETHEE) vertical handoff (VHO) decision algorithm. An attribute matrix is constructed considering the SH information and the SINR in the source network and the equivalent SINR in the target network and so on. Handoff decision meeting multi-attribute QoS requirement is made according to the traffic features. The weight relation of decision elements is determined with LS method. Finally decision is made using PROMETHEE algorithm based on the attribute matrix and weight vector. The simulation results have shown that the SHS-PROMETHEE algorithm can reduce unnecessary handoffs and provide satisfactory vertical handoff performance.
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- Research on vertical handoff decision based on service history information and SINR for heterogeneous wireless networks
Volume 53, Issue 1 , pp 55-60
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- Heterogeneous wireless networks
- Vertical handoff
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