Title :
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
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;
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
DOI :
10.1109/ICCE.2007.341407
