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The Transactions P of the Korean Institute of Electrical Engineers

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Title	Performance Trade-Off Analysis of Handover Schemes in OFDMA-based Cellular Systems
Authors	왕한호(Wang, Hanho)
DOI	https://doi.org/10.5370/KIEEP.2013.62.4.216
Page	pp.216-222
ISSN	1229-800X
Keywords	Handover ; OFDMA ; Diversity
Abstract	Handover is a technical methodology to support mobility of wireless communication users, which mainly affects the capacity of wireless communication systems and the quality of service (QoS) of link level signal. However, in OFDMA-based cellular systems, there are few published technical reports investigating handovers with respect to diversity gains and resource consumption depending on what handover technique is adopted. In this paper, we propose handover schemes exploiting transmit diversity and macro-diversity in order to increase capacity of OFDMA-based wireless communication systems, and analyze their performance. In cellular environments, depending on what handover scheme is selected, average signal-to-interference-and-noise ratio is calculated first for a handover user in order to evaluate the link level QoS. Through this technical evaluation for handover schemes, we conclude what handover scheme is suitable for OFDMA-based cellular systems.

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