Design issues in wireless heterogeneous sensor networks

近年来，小型化、低功耗电路设计、简单、低功耗但相当高效的无线通信设备以及改进的小规模能源供应的进步与降低的制造成本相结合，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接近现象。节点的位置不需要设计或预先确定。这使得能够在无法进入的地区或救灾行动中进行随机部署。其目的是开发和促进可扩展的和模块化的无线异构传感器/执行器网络在电子社会中的使用。该项目的目标是开发网络架构沿着支持协议和算法以及网络控制机制，以支持通过不同类型的无线网络进行传感器/执行器联网。为了支持这些新的架构，自组织算法，新的功率有效的协议，新颖的网关设计，鲁棒的移动性管理技术，和新的无线电资源管理框架，是必需的。根据应用，将部署一种或多种无线网络技术，例如WiMax、WiFi、自组织网络、沿着无线网格、因特网接入和蜂窝系统。研究将集中在四个问题：i）体系结构和系统设计; ii）网关和互联网; iii）移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仿真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.