Design issues in wireless heterogeneous sensor networks

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In recent years, advances in miniaturization; low-power circuit design; simple, low power, yet reasonably efficient wireless communication equipment; and improved small-scale energy supplies have combined with reduced manufacturing costs to make a new technological vision possible: Wireless sensor networks. A sensor network is composed of a large number of sensor/actuator nodes, which are densely deployed either inside the phenomenon or very close to it. The position of nodes need not be engineered or pre-determined. This allows random deployment in inaccessible terrains or disaster relief operation. The aim is to develop and facilitate the use of scalable and modular wireless heterogeneous sensor/actuator networks in the e-Society. The objective of this project is to develop network architectures along with supporting protocols and algorithms and network control mechanisms for supporting sensors/actuators networking via different types of wireless networks. To support these new architectures, self organized algorithms, new power efficient protocols, novel gateway designs, robust mobility management techniques, and new radio resource management frameworks, are required. Depending on the application, one or more wireless network technologies, such as WiMax, WiFi, ad hoc networks, along with wireless mesh, Internet access and cellular systems would be deployed. The research will focus on four issues: i) Architecture and system design; ii) Gateways and internetworking; iii) Mobility and radio resource management; iv) Self organized and distributed systems. Performance evaluation methods for various architectures, protocols, algorithms, strategies, frameworks, and novel techniques will be carried out using analytical and simulation approaches as well as actual emulation and lab measurements.