Anonymous Secure Routing Protocol for Wireless Metropolitan Networks

摘要

This paper proposes efficient concepts of anonymous and secure routing protocol considering symmetric and asymmetric communication models for Wireless Metropolitan Networks. A wireless metropolitan network is a group of wireless access points and several kinds of wireless devices (or nodes) in which individual nodes cooperate by forwarding packets for each other to allow nodes to communicate beyond the symmetric or asymmetric model. Asymmetric communication is a special feature of Wireless Metropolitan Network because of the different wireless transmission ranges of wireless devices. With asymmetric communication model, message exchange can be more efficient in metropolitan scale network. Providing security and privacy in Wireless Metropolitan Networks has been an important issue over the last few years. This paper proposes concepts of routing protocol beyond symmetric and asymmetric model, which guarantees security and anonymity of the established route in a hostile environment, such as Wireless Metropolitan Networks. The routes generated by the proposed concept are shorter than those in prior works. The wireless clients out of access point wireless transmission range may anonymously discover a secure route to connect to the access point for Internet access via the protocol based on the proposed concepts. The proposed concepts enhance wireless metropolitan network coverage in assuring security and anonymity.