NDLI: Near maximum-likelihood detector with one-bit ADCs for multiuser massive MIMO systems

Content Provider	IEEE Xplore Digital Library
Author	Junil Choi Heath, R.W.
Copyright Year	2015
Description	Author affiliation: Wireless Networking & Commun. Group, Univ. of Texas at Austin, Austin, TX, USA (Junil Choi; Heath, R.W.)
Abstract	In massive multiple-input multiple-output (MIMO) systems, deploying a high-resolution analog-to-digital converter (ADC) for each antenna element may not be power and cost efficient. Assuming each antenna is connected to a pair of one-bit ADCs, i.e., one for each real and imaginary component of the received signal, a near maximum likelihood (nML) detector for uplink multiuser massive MIMO systems is proposed in this paper. The proposed nML detector is based on a standard convex optimization technique and becomes optimal when the number of receive antennas at the base station goes to infinity. Simulation results show that the proposed nML detector can simultaneously support multiple users using higher-order constellations, e.g., 16 quadrature amplitude modulation, and performs much better than a simple zeroforcing (ZF)-type detector.
Starting Page	397
Ending Page	400
File Size	330979
Page Count	4
File Format	PDF
e-ISBN	9781479919635
DOI	10.1109/CAMSAP.2015.7383820
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-12-13
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations Error analysis Receiving antennas Detectors MIMO Uplink Signal to noise ratio
Content Type	Text
Resource Type	Article

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