International Conference on Advanced Computing, Communication and Networks - CCN 2011
Author(s) : AMIT AGRAWAL, J M KELLER, R K DAVE
In this paper, we study the existing standards in multihop WiMAX networks and their security issues. For secured communications, it is necessary to have hop-by-hop authentication for any multihop wireless networks. 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 . 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 is not able to consider the security threats for multihop support , network coding, and 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.