Rate 2 Quasi-Orthogonal Space Time Block Codes using Parallel Interference Cancellation

Author

Pau, Nicholas S J ; Taylor, Desmond P. ; Martin, Philippa A.

Author_Institution

Dept. of Electr. & Comput. Eng., Canterbury Univ., Christchurch

Volume

5

fYear

2006

fDate

7-10 May 2006

Firstpage

2324

Lastpage

2328

Abstract

In this paper, we focus on an advanced space-time system using a rate 2 quasi-orthogonal space-time block code which enables us to achieve very good performance for an overall throughput of up to 4.3 bits/s/Hz. This is done through the use of a bit-mapped coded modulation structure using short low density parity check component codes. At the receiver, parallel interference cancellation (PIC) and belief propagation (BP) decoding are employed. Iterative decoding is performed between the PIC and BP decoding stages. Given a fixed total number of decoding iterations, we investigate the frequency of PIC updates required to achieve good performance

Keywords

MIMO systems; block codes; interference suppression; iterative decoding; modulation coding; parity check codes; space-time codes; BP decoding; PIC; belief propagation decoding; bit-mapped coded modulation structure; iterative decoding; low density parity check component codes; parallel interference cancellation; rate 2 quasi-orthogonal space time block codes; Belief propagation; Block codes; Interference cancellation; Iterative decoding; Maximum likelihood decoding; Modulation coding; Parity check codes; Silicon carbide; Throughput; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683272

Filename

1683272