Publikationer
Space-Time LDPC with Layered Structure for MIMO Systems
Avdelning/ar:
Publiceringsår: 2004
Språk: Engelska
Dokumenttyp: Konferensbidrag
Sammanfattning
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)
Disputation
Nyckelord
- Technology and Engineering
Övrigt
IEEE Wireless Personal Multimedia Conference 2004
Published
Yes
