Structured Dirty Paper Coding with Known Interference Structure at Receiver

Author

Liu, Bin ; Liu, Hui ; Roy, Sumit

Author_Institution

Dept. of Electr. Eng., Washington Univ., Seattle, WA

fYear

2005

fDate

Oct. 28 2005-Nov. 1 2005

Firstpage

643

Lastpage

647

Abstract

The Tomlinson-Harashima precoding is well known for dirty paper coding implementation. Despite its simplicity, THP suffers from a significant performance loss in the low SNR region due to modulo operations. In this paper, we propose new dirty paper precoding scheme by taking advantage of the known modulation structure of interference (e.g., BPSK and QPSK signals). The new method, termed structured DPC (SDPC), outperforms the regular THP with modest changes to the transmitter and receiver. For BPSK and QPSK cases investigated, the SDPC only suffers power loss, which is up to 1.25 dB compared with non-interference case, while the regular THP-based scalar dirty paper coding has a typical 4-5 dB capacity loss in the same low SNR regions

Keywords

binary codes; electromagnetic interference; phase shift keying; precoding; 4 to 5 dB; BPSK; QPSK; SNR; Tomlinson-Harashima precoding; modulation structure; modulo operations; receiver interference structure; structured dirty paper coding; Additive white noise; Binary phase shift keying; Broadcasting; Degradation; Gaussian noise; Intersymbol interference; Performance loss; Quadrature phase shift keying; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

1-4244-0131-3

Type

conf

DOI

10.1109/ACSSC.2005.1599829

Filename

1599829