Implementation of IEEE 802.16e MIMO-OFDMA Systems with K-BEST Lattice Decoding Algorithm

Author

Yoo, Byungwook ; Lee, Kyu Ha ; Lee, Chungyong

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul

fYear

2007

fDate

10-14 Jan. 2007

Firstpage

1

Lastpage

2

Abstract

This paper presents an implementation of IEEE 802.16e MIMO-OFDMA systems using a fixed-point DSP. Among the various MIMO detectors, the proposed system is based on K-BEST lattice decoding algorithm that shows the performance close to maximum likelihood (ML) receiver, the optimum receiver for MIMO systems. As a result, computation-efficient fixed-point algorithms are proposed and real-time system based on IEEE 802.16e 2times2 MIMO-OFDMA system is implemented.

Keywords

MIMO communication; OFDM modulation; WiMax; decoding; frequency division multiple access; maximum likelihood estimation; radio receivers; signal detection; IEEE 802.16e MIMO-OFDMA systems; K-BEST lattice decoding algorithm; MIMO detectors; computation-efficient fixed-point algorithms; fixed-point DSP; maximum likelihood receiver; Computational complexity; Detectors; Digital signal processing; Euclidean distance; Lattices; MIMO; Maximum likelihood decoding; Maximum likelihood detection; Samarium; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2007. ICCE 2007. Digest of Technical Papers. International Conference on

Conference_Location

Las Vegas, NV

Print_ISBN

1-4244-0763-X

Electronic_ISBN

1-4244-0763-X

Type

conf

DOI

10.1109/ICCE.2007.341407

Filename

4146027