The Research And Implementation Of IPv6 Wireless Sensor Network Based On 6LoWPAN

As a combination of data collecting, data transportation and data processing, Wireless Sensor Network(WSN) has a wide application range and becomes one of the hottest research focuses in wireless network area. With the development of WSN, large amount of sensor nodes are connected to Internet. However, the traditional IPv4 protocol isn't suitable for WSN due to its exhausting address space. While new features of IPv6 such as huge 128-bits address space, security, mobility and plug&play would do a great favor. The combination of IPv6 and WSN would definitely accelerate the development of Wireless Sensor Networks.6LoWPAN or IPv6 over LoWPAN is a technology of running IPv6 stack on the LoWPAN devices. This paper focuses on designing a kind of WSN based on 6LoWPAN which can archive the direct communication between WSN's nodes and IPv6 network.This thesis begins with the concepts, current situation and developing trend of WSN, then illustrates the basic technique of 6LoWPAN: IPv6 and IEEE802.15.4 protocol. Referred to the published 6LoWPAN's internet draft, its core technology is research, which includes the detailed function, frame format, fragmentation and reassembly, header compression of adaptation layer and mesh supporting and so on. Combined with the characteristics of TinyOS2.0, we design and implement a 6LoWPAN star topology WSN based on TinyOS2.0. After that, we analyze its system framework, describe implements of system core programming, then construct a testing environment and do a test to the system. The experiment results show that the system works well, the sensor nodes can exchange data with the IPV6 network normally.