Title :
Nonlinear Soft-Output Signal Detector Design and Implementation for MIMO Communication Systems with High Spectral Efficiency
Author :
Chen, Sizhong ; Sun, Fei ; Zhang, Tong
Author_Institution :
Dept. of Electron. Comput. & Sci. Eng., Rensselaer Polytech. Inst., Troy, NY
Abstract :
VLSI implementations of nonlinear MIMO signal detectors are not trivial, particularly for systems with high spectral efficiency. For example, realization of such a detector for 4 times 4 MIMO with 64-QAM still remains missing in open literature. To tackle this challenge, we developed a nonlinear soft-output detector design solution, based on which a detector for up to 4 times 4 MIMO with 64-QAM has been designed using 0.13mum CMOS technology. Above 75 Mbps detection throughput has been verified based on post-layout results
Keywords :
MIMO communication; digital signal processing chips; quadrature amplitude modulation; signal detection; tree searching; 0.13 micron; 64-QAM; CMOS technology; MIMO communication systems; VLSI; high spectral efficiency; nonlinear MIMO signal detectors; soft-output signal detector; CMOS technology; Computational complexity; Detectors; MIMO; Maximum likelihood detection; Quadrature amplitude modulation; Signal design; Signal detection; Throughput; Very large scale integration;
Conference_Titel :
Custom Integrated Circuits Conference, 2006. CICC '06. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
1-4244-0075-9
Electronic_ISBN :
1-4244-0076-7
DOI :
10.1109/CICC.2006.320901
