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On Subcarrier Allocation for Soft Hand-Over in OFDMA-based Cellular Systems

Jungwoo Lee, Chanhong Kim, Jaehyeong Kim

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Abstract

This paper compares two possible subcarrier allocation methods for soft hand-over in OFDMA-based cellular systems. One method is to use the same subcarrier set between two cells. The other is to use different subcarrier sets between the two cells. It is shown that the different subcarrier scheme is always better than the same subcarrier scheme, which is expected. The difference is more prominent with contiguous subcarriers. Based on this, we propose a new subcarrier allocation strategy for soft hand-over. Simulation results supporting the observation are provided.

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What this paper is about

This paper compares two possible subcarrier allocation methods for soft hand-over in OFDMA-based cellular systems. One method is to use the same subcarrier set between two cells. The other is to use different subcarrier sets between the two cells. It is shown that the different subcarrier scheme is always better than the same subcarrier scheme, which is expected. The difference is more prominent with contiguous subcarriers. Based on this, we propose a new subcarrier allocation strategy for soft hand-over. Simulation results supporting the observation are provided.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

This paper compares two possible subcarrier allocation methods for soft hand-over in OFDMA-based cellular systems. One method is to use the same subcarrier set between two cells. The other is to use different subcarrier sets between the two cells. It is shown that the different subcarrier scheme is always better than the same subcarrier scheme, which is expected. The difference is more prominent with contiguous subcarriers. Based on this, we propose a new subcarrier allocation strategy for soft hand-over. Simulation results supporting the observation are provided.

Key concepts: Subcarrier, Computer science, Scheme (mathematics), Set (abstract data type), Orthogonal frequency-division multiplexing, Frequency-division multiple access, Computer network, Mathematics

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