Title :
Improved detection methods for MIMO-OFDM-CDM communication systems
Author :
Adeane, Jaime ; Rodrigues, Miguel R D ; Berenguer, Inaki ; Wassell, Ian J.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
We consider multiple input multiple output, orthogonal frequency division multiplexing, code division multiplexing (MIMO-OFDM-CDM) techniques for the efficient improvement of the link reliability/spectral efficiency of very high data rate communication systems. In particular, we apply MIMO detection methods based on lattice reduction, partial decision feedback (PDF), and BLAST ordering techniques to MIMO-OFDM-CDM systems. Simulation results show that the proposed receivers significantly outperform the conventional zero-forcing (ZF), minimum mean squared error (MMSE), and vertical Bell Labs layered space time (V-BLAST) receivers without severely compromising system complexity.
Keywords :
MIMO systems; OFDM modulation; code division multiplexing; computational complexity; data communication; least mean squares methods; radio links; radio receivers; signal detection; telecommunication network reliability; BLAST ordering techniques; MIMO detection methods; MIMO-OFDM-CDM communication systems; MMSE receivers; V-BLAST receivers; VBLAST receivers; code division multiplexing techniques; complexity; high data rate communication systems; lattice reduction; link reliability; minimum mean squared error receivers; multiple input multiple output techniques; orthogonal frequency division multiplexing techniques; partial decision feedback; spectral efficiency; vertical Bell Labs layered space time receivers; zero-forcing receivers; Data engineering; Detectors; Fading; Feedback; Frequency division multiplexing; Interference; Lattices; MIMO; Reliability engineering; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1400305
