| Joint Subcarrier Matching, Power Allocation and Bit Loading in OFDM Dual-Hop Systems |
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Hyung-Yun Kong, Jin-Hee Lee |
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Department of Electronic Engineering, University of Ulsan |
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| Abstract |
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Orthogonal Frequency Division Multiplexing(OFDM) dual-hop systems can take full advantages of the techniques of both multi-hop communication and OFDM. To achievethis end, we propose a joint subcarrier matching, power allocation and bit loading algorithm operating under a total power constraint and the same Bit Error Rate(BER) threshold over all subcarriers. Simulation results demonstrated system throughput improvement compared to single-hop systems and dual-hop systems with different bit loading algorithms for each relay position, power constraint, and required BER. |
| Key words:
Multi-Hop, Subcarrier Matching, Power Allocation, Bit Loading, OFDM |
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