An Accelerated Soft-Output Sphere Decoding Algorithm for MIMO System

Author

Yang Chun-ping ; Jin Xin

Author_Institution

Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

An accelerated soft-output sphere decoding algorithm is proposed for multiple input and multiple output (MIMO) system with vertical Bell Labs layered space-time (V-BLAST) structure. Combined with low-density parity-check (LDPC) code, the performance and complexity of the proposed algorithm are simulated and compared with the classical soft-output sphere decoding algorithm. As the simulation results show, the accelerated algorithm has obvious complexity reduction at the cost of little performance losses.

Keywords

MIMO communication; parity check codes; LDPC code; MIMO system; V-BLAST structure; accelerated soft-output sphere decoding algorithm; low-density parity-check code; multiple input and multiple output system; vertical Bell Labs layered space-time structure; Acceleration; Iterative algorithms; Iterative decoding; MIMO; Maximum likelihood decoding; Parity check codes; Power engineering and energy; Random variables; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5302279

Filename

5302279