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|Title:||Phase error suppression for multi-band OFDM-based UWB systems|
|Citation:||Wang, Z.,Xin, Y.,Tomisawa, M. (2008). Phase error suppression for multi-band OFDM-based UWB systems. IEEE Vehicular Technology Conference : 1072-1076. ScholarBank@NUS Repository. https://doi.org/10.1109/VETECS.2008.228|
|Abstract:||This paper proposes an efficient phase error suppression technique for multi-band orthogonal frequency division multiplexing (OFDM) based ultra-wideband (UWB) systems. The proposed scheme consists of a clock recovery loop and a common phase error (CPE) mitigation mechanism. The clock recovery loop performs continuously sampling frequency offset (SFO) estimation and two-dimensional (time and frequency) compensation, while the CPE mitigation copes with the phase errors caused by the residual carrier frequency offset and SFO. Both SFO and CPE estimation use the pilot-tone based approaches, each of which employs a robust error reduction scheme and involves neither angle calculation nor division, and thus they are of low-complexity. Corroborating numerical examples show the effectiveness of the proposed solution even under considerably low signal-to-noise ratio multipath channel conditions. © 2008 IEEE.|
|Source Title:||IEEE Vehicular Technology Conference|
|Appears in Collections:||Staff Publications|
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