Fuzzy AHP for Control of Data Transmission by Network Selection in Heterogeneous Wireless Networks
نویسندگان
چکیده
Multiple radio access technologies (RATs) are available for the mobile users for the Internet connectivity. Traditional handover algorithms select the RAT based on the signal strength only. But quality of service (QoS) attributes are different for every application like VOIP requires lower network delay while video streaming application requires higher data rate. Therefore, these QoS parameters should be involved also in network selection In this paper, extent analysis on fuzzy analytic hierarchy process (AHP) is applied on selecting the RAT among multiple RATs by calculating the values of fuzzy synthetic extent. The selection mechanism is analyzed for interactive, streaming and conversational applications. Numerical simulation calculates the total score of each RAT with respect to the application type. Based on these score appropriate RAT is chosen. Finally, the time complexity required for the executing the network selection mechanism is calculated.
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