Abstract | ||
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This paper presents a high accuracy and low complexity timing offset estimation algorithm for Multi Input Multi Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) receivers in the tracking mode. First of all we propose an effective architecture of phase tracking for MIMO-OFDM receivers. Then we describe two timing offset estimation algorithms; pilot-aided and CFO-aided timing offset estimation. The first algorithm is a timing phase estimation that can minimize the effect of distorted scattered pilots due to severe fading. We show that the performance of the proposed pilot-aided timing offset estimation very close to that of an offset-free system. The second algorithm attempts to use the computation result of carrier frequency offset estimation in order to reduce complexity. The proposed CFO-aided timing offset estimation has very low complexity comparable to that of the pilot subcarrier aided schemes without performance degradation. |
Year | DOI | Venue |
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2006 | 10.1109/WCNC.2006.1696498 | 2006 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC 2006), VOLS 1-4 |
Keywords | Field | DocType |
degradation,ofdm,phase distortion,scattering,fading,ofdm modulation,radio receivers,awgn,orthogonal frequency division multiplexing | Subcarrier,MIMO-OFDM,Fading,Computer science,Carrier frequency offset,Real-time computing,Phase distortion,Additive white Gaussian noise,Offset (computer science),Orthogonal frequency-division multiplexing | Conference |
ISSN | Citations | PageRank |
1525-3511 | 2 | 0.36 |
References | Authors | |
3 | 4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Il-Gu Lee | 1 | 49 | 9.40 |
Eunyoung Choi | 2 | 26 | 4.61 |
Sok-kyu Lee | 3 | 95 | 23.78 |
Taehyun Jeon | 4 | 58 | 9.85 |