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With the advent of 4th Generation wireless systems, such as WiMAX and 3GPP Long Term Evolution (LTE), the world of wireless and mobile communications is becoming increasingly diverse in terms of different wireless access technologies available; each of these technologies has their own distinct characteristics. Mirroring this diversity, multimode terminals (GSM/UMTS/Wi-Fi) currently dominate the market permitting the possibility of selecting the most appropriate access network to match the Quality of Service (QoS) requirements of a particular session/call. A number of approaches have examined this issue utilising techniques as disparate as neural networks and multiple attribute decision making.
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