Advanced

Space-Time LDPC with Layered Structure for MIMO Systems

Du, Jianxuan; Li, Ye Geoffrey; Gu, Daging; Molisch, Andreas LU and Zhang, Jinyun (2004) IEEE Wireless Personal Multimedia Communications (WPMC) 2004
Abstract
In this paper, we incorporate the layered structure with low-density parity-check codes (LDPC)

to develop a quasi-block diagonal LDPC space-time structure. The lower triangular structure of

the parity check matrix introduces correlation between layers. In addition, each layer, as a part

of the whole codeword, can be decoded while taking information from other undetected layers to

improve the decoding performance. Belief propagation of the current layer is stopped as soon as

those parity checks involving only the current layer and detected layers are satisfied. Simulation

shows that the proposed system outperforms the conventional V-BLAST by 0.5 dB at WER=1%.

Wireless Personal... (More)
In this paper, we incorporate the layered structure with low-density parity-check codes (LDPC)

to develop a quasi-block diagonal LDPC space-time structure. The lower triangular structure of

the parity check matrix introduces correlation between layers. In addition, each layer, as a part

of the whole codeword, can be decoded while taking information from other undetected layers to

improve the decoding performance. Belief propagation of the current layer is stopped as soon as

those parity checks involving only the current layer and detected layers are satisfied. Simulation

shows that the proposed system outperforms the conventional V-BLAST by 0.5 dB at WER=1%.

Wireless Personal Multimedia Communications (WPMC) (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
IEEE Wireless Personal Multimedia Communications (WPMC) 2004
language
English
LU publication?
yes
id
51887ef0-7457-4b84-bf4e-0e9d8d092315 (old id 600683)
alternative location
http://www.merl.com/reports/docs/TR2004-119.pdf
date added to LUP
2007-11-21 09:29:13
date last changed
2016-04-16 11:10:05
@misc{51887ef0-7457-4b84-bf4e-0e9d8d092315,
  abstract     = {In this paper, we incorporate the layered structure with low-density parity-check codes (LDPC)<br/><br>
to develop a quasi-block diagonal LDPC space-time structure. The lower triangular structure of<br/><br>
the parity check matrix introduces correlation between layers. In addition, each layer, as a part<br/><br>
of the whole codeword, can be decoded while taking information from other undetected layers to<br/><br>
improve the decoding performance. Belief propagation of the current layer is stopped as soon as<br/><br>
those parity checks involving only the current layer and detected layers are satisfied. Simulation<br/><br>
shows that the proposed system outperforms the conventional V-BLAST by 0.5 dB at WER=1%.<br/><br>
Wireless Personal Multimedia Communications (WPMC)},
  author       = {Du, Jianxuan and Li, Ye Geoffrey and Gu, Daging and Molisch, Andreas and Zhang, Jinyun},
  language     = {eng},
  title        = {Space-Time LDPC with Layered Structure for MIMO Systems},
  year         = {2004},
}