Title
High Accuracy And Low Complexity Timing Offset Estimation For Mimo-Ofdm Receivers
Abstract
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
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 Lee1499.40
Eunyoung Choi2264.61
Sok-kyu Lee39523.78
Taehyun Jeon4589.85