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A generalized subcarrier-grouped MMSE based multi-stage interference cancellation scheme for OFDMA uplink systems with CFOs

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2 Author(s)
Rui Fa ; Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds, UK ; Li Zhang

In this paper, we propose a low-complexity interference cancellation (IC) scheme for OFDMA uplink systems with CFOs. The proposed scheme employs a multi-stage structure, in which a subcarrier-grouped MMSE scheme is used in each stage. To make the proposed scheme more flexible to the tradeoff between the performance and the complexity, we generalize the subcarrier-grouped MMSE scheme and employ a novel IC strategy. The simulation results show that the proposed IC scheme outperforms other existing schemes with considerable low complexity.

Published in:

Wireless Communication Systems (ISWCS), 2010 7th International Symposium on

Date of Conference:

19-22 Sept. 2010

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