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Architecture Design and Implementation of the Metric First List Sphere Detector Algorithm.
- Source :
- IEEE Transactions on Very Large Scale Integration (VLSI) Systems; 05/01/2011, Vol. 19 Issue 5, p895-899, 5p
- Publication Year :
- 2011
-
Abstract
- Soft-output detection of a multiple-input–multiple-output (MIMO) signal pose a significant challenge in future wireless systems. In this paper, we introduce a soft-output modified metric first (MMF)-LSD algorithm for MIMO detection. We design a scalable architecture and address a method to decrease memory requirements. We provide implementation results for a spatial multiplexing (SM) system with four transmitted streams and with 16- and 64-quadrature amplitude modulation (QAM) on a 0.18-\mum CMOS application specific integrated circuit (ASIC) technology. The MFF-LSD implementation is more efficient than the depth first (DF) -LSD in the crucial low signal-to-noise rate (SNR) region and the detection rate of the 64-QAM implementation is 39.2 Mbps@26 db with 48.2 kGEs complexity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10638210
- Volume :
- 19
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Very Large Scale Integration (VLSI) Systems
- Publication Type :
- Academic Journal
- Accession number :
- 60387054
- Full Text :
- https://doi.org/10.1109/TVLSI.2010.2041800