Space-Time LDPC with Layered Structure for MIMO Systems
Author
Summary, in English
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)
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)
Publishing year
2004
Language
English
Document type
Conference paper
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
IEEE Wireless Personal Multimedia Communications (WPMC) 2004
Conference date
0001-01-02
Status
Published