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

Chuili Kong; Caijun Zhong; Anastasios K. Papazafeiropoulos; 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 K. Papazafeiropoulos, Michail Matthaiou, Zhaoyang Zhang

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

16 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	Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1222-1226
Number of pages	5
Volume	2015-June
ISBN (Electronic)	9781467377041
DOIs	https://doi.org/10.1109/ISIT.2015.7282650
Publication status	Published - 28 Sept 2015
Event	IEEE International Symposium on Information Theory, ISIT 2015 - Hong Kong, Hong Kong Duration: 14 Jun 2015 → 19 Jun 2015

Conference

Conference	IEEE International Symposium on Information Theory, ISIT 2015
Country/Territory	Hong Kong
City	Hong Kong
Period	14/06/15 → 19/06/15

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10.1109/ISIT.2015.7282650

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Kong, C., Zhong, C., Papazafeiropoulos, A. K., Matthaiou, M., & Zhang, Z. (2015). Effect of channel aging on the sum rate of uplink massive MIMO systems. In Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015 (Vol. 2015-June, pp. 1222-1226). Article 7282650 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ISIT.2015.7282650

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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 Papazafeiropoulos, {Anastasios K.} and Michail Matthaiou and Zhaoyang Zhang",

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Kong, C, Zhong, C, Papazafeiropoulos, AK, Matthaiou, M & Zhang, Z 2015, Effect of channel aging on the sum rate of uplink massive MIMO systems. in Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015. vol. 2015-June, 7282650, Institute of Electrical and Electronics Engineers (IEEE), pp. 1222-1226, IEEE International Symposium on Information Theory, ISIT 2015, Hong Kong, Hong Kong, 14/06/15. https://doi.org/10.1109/ISIT.2015.7282650

Effect of channel aging on the sum rate of uplink massive MIMO systems. / Kong, Chuili; Zhong, Caijun; Papazafeiropoulos, Anastasios K. et al.
Proceedings - 2015 IEEE International Symposium on Information Theory, ISIT 2015. Vol. 2015-June Institute of Electrical and Electronics Engineers (IEEE), 2015. p. 1222-1226 7282650.

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

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AU - Kong, Chuili

AU - Zhong, Caijun

AU - Papazafeiropoulos, Anastasios K.

AU - Matthaiou, Michail

AU - Zhang, Zhaoyang

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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).

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

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