%0 Journal Article
%T Resilient Multipath Routing Mechanism Based on Clustering with Intrusion Tolerance
%A Shukui Zhang
%A Hongyan Zuo
%A Jianxi Fan
%A Juncheng Jia
%J International Journal of Distributed Sensor Networks
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/352062
%X Wireless sensor networks (WSNs) integrate sensor technology, communication technology and information processing technology; it is a synthetic discipline. WSNs have been applied into almost all walks of life. However, in many special fields, network security is a basic and important factor which we must concern for. This paper introduces the key management scheme after analyzing the security threats of LEACH protocol. At the same time, we adopt several related mechanisms to protect the communication among the sensor nodes and the confidentiality of the data transmission. Also, we use the mixed multipath mechanism among the clusters to improve the security of the network and strengthen the intrusion tolerance. 1. Introduction The single path in WSNs just created the optimal path which is from the source node to the convergent node to respond timely to the specific mission requirements, which can save space for storage resources, reduce each communication traffic, and simplify algorithm, but the limited bandwidth will lead to the fact that network reliability is poor and fault tolerance is weak, and a node failure could lead to the fact that the whole link is not available, so designing reliable routing protocol is needed to improve the reliability of data transmission [1]. Multi-path routing is that among the source node and the destination node multiple paths are established, which use the primary path for data transmission; if the primary path fails, suboptimal path continuing for delivery will be selected from the backup paths. Disjoint multi-path is the establishment of a number of no convergent node paths among source node and convergent node, while, if the primary path of the way of a node failses, it will cause the entire link paralysis. In order to solve the problems that winding path introduced, this mechanism allows multiple intersecting nodes among the backup paths and the winding path. Each of the nodes on the primary path has a winding path, multiple winding path as an alternate path to constitute the primary path winding multipath. If a node is not available on the primary path, the routing protocol will select automatically the winding path that bypasses the fault nodes to transmit data to the node, so through the multi-path mode the reliability of the data transmission can be improved [2]. Routing protocol influences the performance of the network importantly, which can be divided into flat routing protocol and cluster routing protocol in the network topology view. In flat routing, each sensor node¡¯s status is equal and has the same
%U http://www.hindawi.com/journals/ijdsn/2013/352062/