Asymptotic Performance Analysis of GSVD-NOMA Systems With a Large-Scale Antenna Array

Chen Z, Ding Z, Dai X, Schober R (2018)

Publication Language: English

Publication Type: Journal article

Publication year: 2018


Book Volume: 18

Pages Range: 575 - 590

Journal Issue: 1

DOI: 10.1109/TWC.2018.2883102


This paper considers a multiple-input multipleoutput (MIMO) downlink communication scenario with one base station and two users, where each user is equipped with m antennas and the base station is equipped with n antennas. To efficiently exploit the spectrum resources, we propose a transmission protocol which combines generalized singular value decomposition (GSVD) and non-orthogonal multiple access (NOMA). The expected data rates achieved by the two users are adopted as performance metrics for the evaluation of the proposed GSVD-NOMA scheme. In particular, we first characterize the limiting distribution of the squared generalized singular values of the two users' channel matrices for the asymptotic case, where the numbers of transmit and receive antennas approach infinity. Then, we calculate the expected normalized individual rates of the users in the considered asymptotic regime. Furthermore, we extend the proposed GSVD-NOMA scheme to the general MIMO downlink communication scenario with more than two users. To this end, we propose a hybrid multiple access approach, where the base station divides the users into different groups, the proposed GSVD-NOMA scheme is implemented within each group, and different groups are allocated orthogonal bandwidth resources. Finally, numerical results are provided to validate the effectiveness of the proposed GSVD-NOMA protocol and the accuracy of the developed analytical results.

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Chen, Z., Ding, Z., Dai, X., & Schober, R. (2018). Asymptotic Performance Analysis of GSVD-NOMA Systems With a Large-Scale Antenna Array. IEEE Transactions on Wireless Communications, 18(1), 575 - 590.


Chen, Zhuo, et al. "Asymptotic Performance Analysis of GSVD-NOMA Systems With a Large-Scale Antenna Array." IEEE Transactions on Wireless Communications 18.1 (2018): 575 - 590.

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