论文信息 - Design of distributed security architecture for multihop WiMAX networks

Design of distributed security architecture for multihop WiMAX networks

In this paper, we study the current security standards in multihop WiMAX networks and their security issues. For secured communications, hop-by-hop authentication is necessary for any multihop wireless networks [5][6]. WiMAX multihop networks provide default hop-by-hop authentication in a distributed security mode only. Apart from this, the multihop standards should consider the existing security issues in mobile WiMAX standard [4]. The new multihop standard IEEE 802.16m has improved functionalities and security support. It provides the solution for medium access control (MAC) - control message issues. At the same time, network coding is used for enhanced-multicast broadcast service (E-MBS) retransmission to improve the performance of MBS. However, the standard IEEE 802.16m/D4 fails to consider the security threats for network coding, multihop support and initial ranging. For the above issues, we propose a distributed security architecture using the Elliptic Curve Diffie-Hellman (ECDH) key exchange protocol. Our proposed architecture solves the network coding and other multihop security issues with the help of neighbor authentication/security association (SA), distributed security architecture and ECDH protocol.

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