Optimal Numbers of Base Station Antennas and Users in Multiuser Massive MIMO Systems with Pilot Overhead 


Vol. 41,  No. 11, pp. 1630-1638, Nov.  2016


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  Abstract

In this paper, we consider multiuser massive multiple-input and multiple-output (MIMO) system where multiusers simultaneously utilize massive antennas of base station (BS). With a downlink frame structure considering pilot signals, we derive the ergodic cell capacity based on zero-forcing beamforming (ZFBF) technique. This paper proves that the ergodic cell capacity is concave function with respect to the numbers of BS antennas and users, and derives the optimum numbers of BS antennas and users maximizing ergodic cell capacity. From the simulation results, it is shown that the derived numbers of BS antennas and users has the optimum value for the maximum ergodic cell capacity, and the ergodic cell capacity with the derived optimum values increases with respect to the transmit SNR(Signal to Noise Ratio).

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  Cite this article

[IEEE Style]

M. Jung and S. Choi, "Optimal Numbers of Base Station Antennas and Users in Multiuser Massive MIMO Systems with Pilot Overhead," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 11, pp. 1630-1638, 2016. DOI: .

[ACM Style]

Minchae Jung and Sooyong Choi. 2016. Optimal Numbers of Base Station Antennas and Users in Multiuser Massive MIMO Systems with Pilot Overhead. The Journal of Korean Institute of Communications and Information Sciences, 41, 11, (2016), 1630-1638. DOI: .

[KICS Style]

Minchae Jung and Sooyong Choi, "Optimal Numbers of Base Station Antennas and Users in Multiuser Massive MIMO Systems with Pilot Overhead," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 11, pp. 1630-1638, 11. 2016.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880