Tham khảo tài liệu 'wireless mesh networks part 11', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Secure Routing in Wireless Mesh Networks 239 and the network layer the chapter briefly discusses on some of the preventive mechanisms for those attacks. After the preliminary discussion on various attacks and their countermeasures the chapter focuses on its major issue- security in routing. It first identifies the major security requirements for design of a routing protocol in WMNs. Then various existing secure routing protocols for self-organizing networks such as ARAN Sanzgiri et al. 2002 SAODV Zapata et al. 2002 SRP Papadimitratos et al. 2002 SeAd Hu et al. 2002b ARIADNE Hu et al. 2002a SEaOdV Li et al. 2011 etc. are discussed. All these protocols are compared in terms of their relative performance and their areas of application. After discussing these existing mechanisms the chapter presents two novel secure routing protocols that detect selfish nodes in WMNs and isolate those nodes from the network activities so as to maximize the network throughput while providing desired QoS of the user application Sen 2010a Sen 2010b . The organization of the chapter is as follows. In Section 2 we discuss various security vulnerabilities in different layers of the protocol stack of a WMN. Attacks at the physical MAC network and transport layers are discussed in detail and the countermeasures to defend against such attacks are briefly presented. In Section 3 several routing challenges in WMNs are highlighted. Section 4 presents some of the well-known existing security mechanisms for routing in WMNs. These protocols are also compared with respect to their capabilities in defending against different attacks in the network layer of WMNs. In Section 5 two novel routing protocols for WMNs are presented. These protocols can guarantee application QoS in addition to identifying malicious and selfish nodes in the network. Section 6 concludes the chapter while identifying some open issues and future research directions in designing secure routing protocols for WMNs. In summary the .
