Light-Weight Authentication Scheme for Handoff in Long Term Evolution (LTE)

Long Term Evolution (LTE) is a 4G communication standard in mobile communication developed by 3GPP. LTE assure reliability, broad coverage, low latency and faster speed as compared to 3G. Seamless handover is the key for the mobile users. LTE provides good handoff solutions to assure the get connected status to the user. The fundamental LTE model has not enriched with security measures during handoff. Various researchers have proposed a numerous solution related to authentication in LTE handover. Most of them have used the concept of the PKI cryptography to achieve the same. In this paper, we have proposed a Light-Weight Authentication (LWA) system for LTE during handoff. The idea behind the proposed approach is to Authentication Digest (AD) with Hash function which has been exchange between UE’s to eNB (Home AP) and same AD has been exchanged between eNB to eNB (Visitor AP). Proposed system has generated a hash random number called AD which has been further used to authenticate the UE’s onto the eNB. Hence LWA has eliminated the need of PKI such RSA (Key generation and Validation) and save the costs. Obtained results shows that proposed LWA outperform than existing methods. KeywordsAD, eNB, Hash, Handover, LTE.