Spatial Multiplexing Turbo Receiver with Reduced Complexity

Author

Nedelcu, Andrei ; Lupoaie, Radu ; Enescu, Andrei A. ; Anghel, Cristian ; Paleologu, Constantin

Author_Institution

Dept. of Telecommun., Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2009

fDate

18-23 June 2009

Firstpage

490

Lastpage

495

Abstract

This paper proposes a multi-antenna spatial multiplexing receiver exhibiting very good performances in the presence of fading and low signal-to-noise ratio. These result from the use of a soft-output sphere decoder with reduced complexity and a robust turbo channel decoder affected by log-likelihood ratio quantization and saturation. Fixed-point implementation is targeted, taking in account the receiver throughput and latency.

Keywords

antenna arrays; channel coding; computational complexity; decoding; multifrequency antennas; radio receivers; space division multiplexing; turbo codes; complexity reduction; log-likelihood ratio quantization; multiantenna spatial multiplexing receiver; signal-to-noise ratio; soft-output sphere decoder; turbo channel decoder; turbo receiver; Computational complexity; Detectors; Fading; Information technology; Lattices; MIMO; Maximum likelihood decoding; Polynomials; Robustness; Throughput; Fixed complexity; Sensor networks; Spatial multiplexing; Sphere decoder; Turbo decoder;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Technologies and Applications, 2009. SENSORCOMM '09. Third International Conference on

Conference_Location

Athens, Glyfada

Print_ISBN

978-0-7695-3669-9

Type

conf

DOI

10.1109/SENSORCOMM.2009.82

Filename

5210869