A Novel Interference Cancellation Approach for Interleaved OFDMA Uplink System
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概要
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In this paper, the issue of carrier frequency offset (CFO) compensation in interleaved orthogonal frequency division multiple access (OFDMA) uplink system is investigated. To mitigate the effect of multiple access interference (MAI) caused by CFOs of different users, a new parallel interference cancellation (PIC) compensation algorithm is proposed. This scheme uses minimum mean square error (MMSE) criterion to obtain the estimation of interference users, then circular convolutions [6] are employed to restore MAI and compensate CFO. To tackle the complexity problem of circular convolutions, an efficient MAI restoration and cancellation method is developed. Simulations illustrate the good performance and low computational complexity of the proposed algorithm.
- 2009-11-01
著者
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SUN Jun
Institute of Image Communication and Information Processing, Department of Electronic Engineering, S
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Sun Jun
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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Gui Lin
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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MIAO Ruiqin
Institute of Image Communication and Information Processing, Department of Electronic Engineering, S
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XIONG Jian
Institute of Image Communication and Information Processing, Department of Electronic Engineering, S
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Xiong Jian
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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Miao Ruiqin
Institute Of Image Communication And Information Processing Department Of Electronic Engineering Sha
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