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2006
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Adaptive Bit-Interleaved Coded OFDM over Time-Varying Channels

8 years 11 months ago
Adaptive Bit-Interleaved Coded OFDM over Time-Varying Channels
When adapting the transmitter to the channel state information (CSI), improved transmission is possible compared to the open loop system where no CSI is provided at the transmitter. However, since the perfect channel information is rarely available at the transmitter, the system design based on the partial CSI becomes an important factor. Especially, in mobile environments, the consideration for the outdated CSI should be applied for mitigating the performance degradation. In this paper, we propose a robust adaptive modulation and coding scheme for bit-interleaved coded orthogonal frequency division multiplexing over time-varying channels. With reasonable feedback overhead, the proposed scheme shows the enhanced performance by compensating for the outdated CSI due to Doppler spread. Simulation results confirm that the performance gain is achieved by applying an accurate BER estimation method. Keywords : adaptive modulation and coding (AMC), bit-interleaved coded modulation (BICM), ort...
Jin Soo Choi, Chang-Kyung Sung, Sung Hyun Moon, In
Added 12 Jun 2010
Updated 12 Jun 2010
Type Conference
Year 2006
Where VTC
Authors Jin Soo Choi, Chang-Kyung Sung, Sung Hyun Moon, Inkyu Lee
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