Research On Energy Efficient Routing Protocol In Wireless Sensor Networks

Wireless Sensor Networks (WSNs) is consisted of a lot cheap nodes which are allocated in sensor region, is a brand-new information acquisition and processing technology. It integrates radio communication technology, embedded computation technology, micro sensor technology and so on. It has great potential in application in many different areas, such as military, industry, agriculture, urban management, medical care and environment. The characteristics of WSNs are distinct from traditional wireless networks, such as data-centric, application-related, resource-limited, etc, which raise new issues for the research in WSNs.Since the sensor nodes are generally unable to connect to a fixed power, usually to carry miniature battery-powered. Owed to the serious restriction of energy on wireless sensor nodes, how to utilize the limited resource to prolong the lifetime of wireless sensor network, is becoming one of the hotspots in relevant fields. This paper proposes a novel energy efficient wireless sensor network routing protocols called EERRP. This routing protocol uses a lightweight strategy, making the network consumption of energy balanced; at the same time, the routing protocol adopts an evaluation mechanism of the credibility, under which the nodes monitor other nodes'action and spread of the credibility in data transmission, as a result, the data can reach the destination node smoothly, without the interference of malicious nodes. Through NS simulation platform for testing and verification, EERRP, which is compared with traditional routing protocols in this paper, proves the obvious advantages on the effectiveness and reliable of data transmission and energy saving.Based on wireless sensor network's conditions and needs, for the lack of LEACH protocol, this paper uses immune algorithm to optimize clustering stages in the parent-tree protocol, to achieve the purpose that making network clustering more reasonable and the consumption of energy balanced, maximizing network life cycle. Through the simulation platform for testing and verification, this routing protocols optimized by immune algorithm, which is compared with traditional routing protocols, proves the obvious advantages on the effectiveness of energy saving in WSNs.