TY  - JOUR
VL  - 6
SP  - 470
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
IS  - 4
SN  - 2162-2345
UR  - https://doi.org/10.1109/LWC.2017.2704604
JF  - IEEE Wireless Communications Letters
A1  - Yuan, J
A1  - Jin, S
A1  - Wen, C-K
A1  - Wong, K-K
TI  - The Distributed MIMO Scenario: Can Ideal ADCs Be Replaced by Low-Resolution ADCs?
EP  - 473
AV  - public
Y1  - 2017/05/16/
ID  - discovery1573969
N2  - 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.
PB  - IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
KW  - Science & Technology
KW  -  Technology
KW  -  Computer Science
KW  -  Information Systems
KW  -  Engineering
KW  -  Electrical & Electronic
KW  -  Telecommunications
KW  -  Computer Science
KW  -  Engineering
KW  -  Distributed antenna system
KW  -  low-resolution ADC receiver
KW  -  massive MIMO
KW  -  spectral efficiency
KW  -  MASSIVE MIMO
KW  -  SYSTEMS
KW  -  CAPACITY
ER  -