Improvements to seamless vertical handover between mobile WiMAX and 3GPP UTRAN through the evolved packet core

William J. Song, Jong-Moon Chung, Daeyoung Lee, Chaegwon Lim, Sungho Choi, Taesun Yeoum. Improvements to seamless vertical handover between mobile WiMAX and 3GPP UTRAN through the evolved packet core. IEEE Communications Magazine, 47(4):66-73, 2009. [doi]

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