Security and resource management in heterogeneous wireless networks

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Wireless networks have seen phenomenal growth in the last few years and are being increasingly targeted in a wide range of application areas such as health care, the environment, distance education, pervasive computing, enterprise communications, personal communications and emergency services. Future mobile applications will run on a heterogeneous wireless network platform that will integrate different access technologies such as WiFi, WiMAX, 3G+ Cellular, as well as variable topology ad hoc, sensor and mesh networks. The objective is to give wireless users a secure, seamless access and ubiquitous ABC ("Always Best Connected") coverage. However, the success of such a network will largely depend on the effective unification of techniques for security and resource management, which stand out as two critical design issues.The challenge stems from the fact that disparate access networks pose their own resource constraints and have varying vulnerabilities.