Improvement And Implementation On RPL Routing Protocol

In many WSNs, such as intelligent transportation, smart home, video surveillance, vehicle networking, and many other types of things cases, the data transfer mode of these is generally presented as a multi-point-to-point mode.The data streams ultimately converge to the root, but the network of using the transmission mode is not balanced.Due to carrying too much data communication tasks depleted a part of network their energy, resulting in the loss of network communication capabilities of the original coverage area. So it will lead to coverage holes. Load imbalance will increase the data transfer delay and shorten the life of the network.And finally it will eventually be unable to accomplish the mission of the project. Therefore, in the design of routing protocols must be added to the load balancing mechanism. In this paper, for the purpose of network load balancing, do the following research:Firstly, the paper shows the background and research status of Io T,at the same time gvee a full exposition whitch shows the wireless sensor network technology is the development of things a supportive technology.and then pointed out that the study of the main things is the routing protocol for wireless transmission being network routing protocols, and were discussed wireless sensor sensor network routing protocols should have the characteristics. as well as common centralized routing protocols surface facing the problem of load imbalance, in turn leads to several common equalization algorithm, final briefly discusses the concepts of the subject to the use of Game Theory.Then we give a detailed analysis and research about the Contiki operating system and RPL routing protocol specification and the use of game theory in RPL on the basis of the best parent node selection process has been improved, the WB-RPL presents a comprehensive measure as the best Father node selection criteria, design relevant frame format, and in the form of pseudo-code description of the RPL improved processes running on the node.Finally,compared with the RPL,the WB-RPL has the advantages in some performance status.Meanwhile, to verify the validity and robustness, we using the WB-RPL to design a smart home system which is based on 6Lowpan lower computer network and in the form of IPv6.In this system there are several different devices. through the gateway people can successfully access the Internet by APP and can control a variety of intelligent terminal hardware.