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Performance Analysis of Block MSN Algorithm with Pseudo-Noise Control in Multi-User MIMO System

Nobuyoshi KIKUMA, Kousuke YONEZU, Kunio SAKAKIBARA

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Summary :

MU-MIMO (Multi-User Multiple Input and Multiple Output) has been considered as a fundamental technology for simultaneous communications between a base station and multiple users. This is because it can generate a large virtual MIMO channel between a base station and multiple user terminals with effective utilization of wireless resources. As a method of implementing MU-MIMO downlink, Block Diagonalization (BD) was proposed in which the transmission weights are determined to cancel interference between multiple user terminals. On the other hand, Block Maximum Signal-to-Noise ratio (BMSN) was proposed which determines the transmission weights to enhance the gain for each user terminal in addition to the interference cancellation. As a feature, BMSN has a pseudo-noise for controlling the null depth to the interference. In this paper, to enhance further the BMSN performance, we propose the BMSN algorithm that has the pseudo-noise determined according to receiver SNR. As a result of computer simulation, it is confirmed that the proposed BMSN algorithm shows the significantly improved performance in evaluation of bit error rate (BER) and achievable bit rate (ABR).

Publication
IEICE TRANSACTIONS on Communications Vol.E102-B No.2 pp.224-232
Publication Date
2019/02/01
Publicized
2018/08/21
Online ISSN
1745-1345
DOI
10.1587/transcom.2018ISP0004
Type of Manuscript
Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2017)
Category
MIMO

Authors

Nobuyoshi KIKUMA
  Nagoya Institute of Technology
Kousuke YONEZU
  Nagoya Institute of Technology
Kunio SAKAKIBARA
  Nagoya Institute of Technology

Keyword