Space-Time LDPC with Layered Structure for MIMO Systems

Jianxuan Du, Ye Geoffrey Li, Daging Gu, Andreas Molisch, Jinyun Zhang

Research output: Contribution to conferencePaper, not in proceedingpeer-review

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 Multimedia Communications (WPMC)
Original languageEnglish
Publication statusPublished - 2004
EventIEEE Wireless Personal Multimedia Communications (WPMC) 2004 -
Duration: 0001 Jan 2 → …

Conference

ConferenceIEEE Wireless Personal Multimedia Communications (WPMC) 2004
Period0001/01/02 → …

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Department of Electroscience (011041000)

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

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