Design issues in wireless heterogeneous sensor networks

近年来，小型化进展；低功耗电路设计；简单，低功耗，但相当高效的无线通信设备；小规模能源供应的改善与制造成本的降低相结合，使一种新的技术愿景成为可能：无线传感器网络。传感器网络由大量传感器/执行器节点组成，这些节点密集地部署在现象内部或非常靠近现象的地方。节点的位置不需要设计或预先确定。这允许在难以进入的地形或救灾行动中随机部署。目的是在电子社会中开发和促进可扩展和模块化无线异构传感器/执行器网络的使用。该项目的目标是开发网络架构以及支持协议、算法和网络控制机制，以通过不同类型的无线网络支持传感器/执行器联网。为了支持这些新的架构，需要自组织算法、新的节能协议、新的网关设计、健壮的移动性管理技术和新的无线电资源管理框架。根据不同的应用，将部署一种或多种无线网络技术，如WiMax、WiFi、特设网络，以及无线网格、互联网接入和蜂窝系统。研究将集中在四个方面：i)架构和系统设计；ii)网关和互联；（三）机动性和无线电资源管理；iv)自组织和分布式系统。各种架构、协议、算法、策略、框架和新技术的性能评估方法将使用分析和模拟方法以及实际仿真和实验室测量进行。

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.