Effect of channel aging on the sum rate of uplink massive MIMO systems

Chuili Kong; Caijun Zhong; Anastasios Papazafeiropoulos; Hien-Quoc Ngo; Michail Matthaiou; Zhaoyang Zhang

doi:10.1109/ISIT.2015.7282650

Effect of channel aging on the sum rate of uplink massive MIMO systems

Chuili Kong, Caijun Zhong, Anastasios Papazafeiropoulos, Hien-Quoc Ngo, Michail Matthaiou, Zhaoyang Zhang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

18 Citations (Scopus)

Abstract

This paper investigates the achievable sum-rate of uplink massive multiple-input multiple-output (MIMO) systems considering a practical channel impairment, namely, aged channel state information (CSI). Taking into account both maximum ratio combining (MRC) and zero-forcing (ZF) receivers at the base station, we present tight closed-form lower bounds on the sum-rate for both receivers, which provide efficient means to evaluate the sum-rate of the system. More importantly, we characterize the impact of channel aging on the power scaling law. Specifically, we show that the transmit power of each user can be scaled down by 1/√(M), which indicates that aged CSI does not affect the power scaling law; instead, it causes only a reduction on the sum rate by reducing the effective signal-to-interference-and-noise ratio (SINR).

Original language	English
Title of host publication	2015 IEEE International Symposium on Information Theory (ISIT)
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	978-1-4673-7704-1
DOIs	https://doi.org/10.1109/ISIT.2015.7282650
Publication status	Published - Oct 2015

Access to Document

10.1109/ISIT.2015.7282650Licence: Unspecified

Cite this

@inproceedings{cd76a1e5a38b43caad834e1fcde71a1e,

title = "Effect of channel aging on the sum rate of uplink massive MIMO systems",

abstract = "This paper investigates the achievable sum-rate of uplink massive multiple-input multiple-output (MIMO) systems considering a practical channel impairment, namely, aged channel state information (CSI). Taking into account both maximum ratio combining (MRC) and zero-forcing (ZF) receivers at the base station, we present tight closed-form lower bounds on the sum-rate for both receivers, which provide efficient means to evaluate the sum-rate of the system. More importantly, we characterize the impact of channel aging on the power scaling law. Specifically, we show that the transmit power of each user can be scaled down by 1/√(M), which indicates that aged CSI does not affect the power scaling law; instead, it causes only a reduction on the sum rate by reducing the effective signal-to-interference-and-noise ratio (SINR).",

author = "Chuili Kong and Caijun Zhong and Anastasios Papazafeiropoulos and Hien-Quoc Ngo and Michail Matthaiou and Zhaoyang Zhang",

year = "2015",

month = oct,

doi = "10.1109/ISIT.2015.7282650",

language = "English",

booktitle = "2015 IEEE International Symposium on Information Theory (ISIT)",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

}

TY - GEN

T1 - Effect of channel aging on the sum rate of uplink massive MIMO systems

AU - Kong, Chuili

AU - Zhong, Caijun

AU - Papazafeiropoulos, Anastasios

AU - Ngo, Hien-Quoc

AU - Matthaiou, Michail

AU - Zhang, Zhaoyang

PY - 2015/10

Y1 - 2015/10

N2 - This paper investigates the achievable sum-rate of uplink massive multiple-input multiple-output (MIMO) systems considering a practical channel impairment, namely, aged channel state information (CSI). Taking into account both maximum ratio combining (MRC) and zero-forcing (ZF) receivers at the base station, we present tight closed-form lower bounds on the sum-rate for both receivers, which provide efficient means to evaluate the sum-rate of the system. More importantly, we characterize the impact of channel aging on the power scaling law. Specifically, we show that the transmit power of each user can be scaled down by 1/√(M), which indicates that aged CSI does not affect the power scaling law; instead, it causes only a reduction on the sum rate by reducing the effective signal-to-interference-and-noise ratio (SINR).

AB - This paper investigates the achievable sum-rate of uplink massive multiple-input multiple-output (MIMO) systems considering a practical channel impairment, namely, aged channel state information (CSI). Taking into account both maximum ratio combining (MRC) and zero-forcing (ZF) receivers at the base station, we present tight closed-form lower bounds on the sum-rate for both receivers, which provide efficient means to evaluate the sum-rate of the system. More importantly, we characterize the impact of channel aging on the power scaling law. Specifically, we show that the transmit power of each user can be scaled down by 1/√(M), which indicates that aged CSI does not affect the power scaling law; instead, it causes only a reduction on the sum rate by reducing the effective signal-to-interference-and-noise ratio (SINR).

U2 - 10.1109/ISIT.2015.7282650

DO - 10.1109/ISIT.2015.7282650

M3 - Conference contribution

BT - 2015 IEEE International Symposium on Information Theory (ISIT)

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Effect of channel aging on the sum rate of uplink massive MIMO systems

Abstract

Access to Document

Fingerprint

Cite this