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A New Technique for Improving the Performance of OFDM Systems with Residual Carrier Frequency Offset

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3 Author(s)
Yue Xiao ; Nat. key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu ; Xiaoyong Peng ; Shaoqian Li

Orthogonal frequency division multiplexing (OFDM) is a promising transmission technique for future wireless communication systems. However, OFDM is very sensitive to carrier frequency offset (CFO). And for an OFDM system with CFO estimation and compensation, the residual CFO will always degrade the system performance. To alleviate this problem, in this paper, a new technique is proposed to estimate and compensate the residual CFO in single OFDM symbol, so as to improve the system performance. Furthermore, since the proposed technique is based on the utilizing of the cycle prefix (CP) in single OFDM symbol, it will not cause additional loss of spectrum efficiency.

Published in:

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Date of Conference:

21-25 Sept. 2007