eprintid: 1573969
rev_number: 22
eprint_status: archive
userid: 608
dir: disk0/01/57/39/69
datestamp: 2017-09-17 00:50:44
lastmod: 2021-09-20 22:24:18
status_changed: 2017-12-05 12:01:56
type: article
metadata_visibility: show
creators_name: Yuan, J
creators_name: Jin, S
creators_name: Wen, C-K
creators_name: Wong, K-K
title: The Distributed MIMO Scenario: Can Ideal ADCs Be Replaced by Low-Resolution ADCs?
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: Science & Technology, Technology, Computer Science, Information Systems, Engineering, Electrical & Electronic, Telecommunications, Computer Science, Engineering, Distributed antenna system, low-resolution ADC receiver, massive MIMO, spectral efficiency, MASSIVE MIMO, SYSTEMS, CAPACITY
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: This letter considers the architecture of a distributed antenna system, which is made up of a massive number of single-antenna remote radio heads (RRHs), some with full-resolution but others with low-resolution analog-to-digital converter (ADC) receivers. This architecture is greatly motivated by its high energy efficiency and low-cost implementation. We derive the worst-case uplink spectral efficiency (SE) of the system assuming a frequency-flat channel and maximum-ratio combining, and reveal that the SE increases as the number of quantization bits for the low-resolution ADCs increases, and the SE converges as the number of RRHs with low-resolution ADCs grows. Our results furthermore demonstrate that a great improvement can be obtained by adding a majority of RRHs with low-resolution ADC receivers, if sufficient quantization precision and an acceptable proportion of high-to-low resolution RRHs are used.
date: 2017-05-16
date_type: published
publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
official_url: https://doi.org/10.1109/LWC.2017.2704604
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_id: 1419678
doi: 10.1109/LWC.2017.2704604
lyricists_name: Wong, Kai-Kit
lyricists_id: KWONG98
actors_name: Stacey, Thomas
actors_id: TSSTA20
actors_role: owner
full_text_status: public
publication: IEEE Wireless Communications Letters
volume: 6
number: 4
pagerange: 470-473
pages: 4
issn: 2162-2345
citation:        Yuan, J;    Jin, S;    Wen, C-K;    Wong, K-K;      (2017)    The Distributed MIMO Scenario: Can Ideal ADCs Be Replaced by Low-Resolution ADCs?                   IEEE Wireless Communications Letters , 6  (4)   pp. 470-473.    10.1109/LWC.2017.2704604 <https://doi.org/10.1109/LWC.2017.2704604>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1573969/1/Wong-KK_FINAL%20VERSION.pdf