High-Throughput Soft-Output MIMO Detector Based on Path-Preserving Trellis-Search Algorithm

• Published in: IEEE transactions on very large scale integration (VLSI) systems Vol. 20; no. 7; pp. 1235 - 1247
• Main Authors: Yang Sun, Cavallaro, Joseph R.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2012; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Antennas; Application-specific integrated circuit (ASIC); Applied sciences; Complexity theory; Computer simulation; Design. Technologies. Operation analysis. Testing; Detection algorithms; Detectors; Electronics; Exact sciences and technology; General equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Integrated circuits; MIMO; multiple-input-multiple-output (MIMO) detection; Physics; Searching; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing; shortest path algorithm; soft-output MIMO detector; Studies; Symbols; Throughput; Transmitting antennas; Very large scale integration; VLSI architecture; MIMO system; shortest path algorithm; Parallel algorithm; multiple-input-multiple-output (MIMO) detection; VLSI circuit; Quadrature amplitude modulation; Error estimation; Measurement sensor; Shortest path; Data transmission; VLSI architecture; Systolic network; Application-specific integrated circuit (ASIC); Search algorithm; Circuit architecture; Case study; Complementary MOS technology; Integrated circuit; Parallel processing; Custom circuit; soft-output MIMO detector

In this paper, we propose a novel path-preserving trellis-search (PPTS) algorithm and its high-speed VLSI architecture for soft-output multiple-input-multiple-output (MIMO) detection. We represent the search space of the MIMO signal with an unconstrained trellis, where each node in stage k of the tr...