Integrated Sensing: Communication Protocols and Testbed Development for Ad-Hoc Sensor Networks

022597 sivakumar微机电系统（MEMS）技术、无线通信和数字电子技术的融合，使低成本、低功耗、多功能传感器节点的发展成为可能，这些传感器节点体积小，在短距离内不受束缚地通信。它们可以执行传统直立传感器难以比拟的任务。尽管传感器网络与另一类称为ad-hoc网络的无线网络有一些相似之处，但它们有几个不同的特征，需要专用的通信协议。在提议的项目中，pi的总体目标是开发一个系统架构，其中包括新的协议实体和接口。他们的重点是将提出的算法集成到一个有效的整体系统中。虽然他们提议为传输层和网络层开发新的算法和协议，但具体来说，他们的交付成果将包括：(a)专门为传感器网络环境设计的名为SNTP（传感器网络传输协议）的新传输协议，以及(b)允许最终用户控制传感器和重新配置传感器网络互连的电源感知和可扩展路由协议。pi将在基于ns2网络模拟器的仿真环境中评估他们提出的协议，并使任何协议仿真软件可供公众使用。由于ns2模拟器目前没有广泛支持传感器网络环境的仿真，他们也将开发这种支持，并使其可供公众使用。

022597SivakumarThe convergence of micro electro-mechanical systems (MEMS) technology, wireless communications and digital electronics have enabled the development of low cost, low power, multi-functional sensor nodes that are small in size and communicate un-tethered in short distances. They can perform tasks, which traditional stand along sensors are hard to match. Although sensor networks have some similarities with another class of wireless networks called ad-hoc networks, they have several distinguishing characteristics that necessitate dedicated communication protocols.The PIs overall objective in the proposed project is to develop a system architecture, which includes new protocol entities and interfaces. Their focus will be on the integration of the proposed algorithms into an efficient overall system. While they propose to develop new algorithms and protocols for the transport and network layers, specifically, their deliverables will include: (a) a new transport protocol called SNTP (Sensor-Nets Transport Protocol) that is designed specifically for a sensor network environment, and (b) a power aware and scalable routing protocol that allow an end-user to control the sensors and reconfigure the interconnection of the sensor network. The PIs will evaluate their proposed protocols in a ns2 network simulator based simulation environment, and make available for public use any protocol simulation software. Since the ns2 simulator currently does not extensively support the simulation of sensor network environments, they will also develop such support and make it available for public use.