A unified multi-mode MIMO detector with soft-output

Summary, in English

This paper presents an area/energy efficient soft-output

MIMO detector that supports the detection of spatial-multiplexing

(SM), spatial-diversity (SD), and space-division-multiple-access (SDMA)signals. The developed near-optimal detection algorithms for these tree modes share most of the mathematical operations to enable extensive

hardware reuse. A unified VLSI architecture is accordingly designed to

be reconfigured to different modes. The detector was implemented using

a 65-nm CMOS technology with 0.25 mm2 core area, representing a

70% hardware-resource saving to state-of-the-art detectors. Operating

at 167-MHz clock frequency with 1.2-V supply, the detector achieves 1

Gb/s peak throughput and only consumes 59.3 pJ/b energy.

• Author: Liang Liu; Johan Löfgren; Peter Nilsson
• Department/s: Department of Electrical and Information Technology; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2012
• Language: English
• Publication/Series: [Host publication title missing]
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Keywords: space division-multiple-access; spatial diversity; Circuit design; ASIC; LTE Advanced; LTE; OFDM; spatial multiplexing; Digital baseband; MIMO
• Conference name: IEEE International Symposium on Circuits and Systems (ISCAS), 2012
• Conference date: 2012-05-20 - 2012-05-23
• Status: Published
• Research group: Digital ASIC
• ISBN/ISSN/Other: ISSN: 2158-1525; ISSN: 0271-4310