Hard Hand Over Process in IEEE 802.16j Transparent Method of Wireless Networks

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The two different relay methods are defined in IEEE 802.16j WIMAX standard; transparent method and non-transparent method. IEEE 802.16j standard supports mobile station mobility; it defines three kinds of hand over mechanism hard handover, Macro Diversity Hand Over (MDHO) and Fast BS Switching (FBSS). In this paper, the authors have simulated the hard hand over mechanism of IEEE 802.16j transparent method networks using NCTUns 6.0 Tool. They have implemented using adaptive modulation and coding scheme. The results shows when the mobile station moves from Base Station 1 (BS1) to Base Station 2 (BS2), it has to detach the original connection with BS1 before making a new connection with BS2.