TY - JOUR
T1 - A DFE structure using quadrature components of 8-VSB signals
AU - Chung, Wonzoo
N1 - Funding Information:
Manuscript received March 20, 2008; revised May 12, 2008. First published August 4, 2008; last published August 20, 2008 (projected). This work was supported by a Korea University Grant and the Brain Korea 21 project in 2008. The author is with the Division of Computer and Communications Engineering, Korea University, Seoul 136-701, Korea (e-mail: wchung@korea.ac. kr). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TBC.2008.2001149
PY - 2008/9
Y1 - 2008/9
N2 - In this paper, we present a decision feedback equalizer (DFE) that uses the quadrature components of 8-VSB signals in ATSC systems to mitigate multipath distortion efficiently. Unlike the conventional DFE structure for 8-VSB signals in which a real-valued feedback filter is used with real-valued decisions, the proposed DFE uses a complex-valued feedback filter with a complex-valued feedback sample generator. Due to the difficulty in analyzing a recursive system, we present a limited performance analysis on the proposed algorithm that a well-modeled feedback filter successfully cancels multipath channels with quadrature leakages in the absence of noise. For the performance comparison with conventional DFEs in realistic environments, we uses simulation methods.
AB - In this paper, we present a decision feedback equalizer (DFE) that uses the quadrature components of 8-VSB signals in ATSC systems to mitigate multipath distortion efficiently. Unlike the conventional DFE structure for 8-VSB signals in which a real-valued feedback filter is used with real-valued decisions, the proposed DFE uses a complex-valued feedback filter with a complex-valued feedback sample generator. Due to the difficulty in analyzing a recursive system, we present a limited performance analysis on the proposed algorithm that a well-modeled feedback filter successfully cancels multipath channels with quadrature leakages in the absence of noise. For the performance comparison with conventional DFEs in realistic environments, we uses simulation methods.
KW - 8-VSB
KW - Decision feedback equalizer
KW - Feedback sample generator
KW - Hubert transformation filter
KW - Vestigial sideband
UR - http://www.scopus.com/inward/record.url?scp=50849112375&partnerID=8YFLogxK
U2 - 10.1109/TBC.2008.2001149
DO - 10.1109/TBC.2008.2001149
M3 - Article
AN - SCOPUS:50849112375
VL - 54
SP - 394
EP - 400
JO - IEEE Transactions on Broadcasting
JF - IEEE Transactions on Broadcasting
SN - 0018-9316
IS - 3
M1 - 4586429
ER -