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Beamforming for Dual-Hop MIMO AF Relay Networks with Channel Estimation Error and Feedback Delay

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Version 2 2024-06-05, 01:16
Version 1 2019-02-18, 14:02
journal contribution
posted on 2024-06-05, 01:16 authored by M Li, L Bai, Q Yu, Jinho ChoiJinho Choi
This paper concerns the beamforming (BF) design for a dual-hop multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay network. Both a general antenna configuration and imperfect channel state information are taking into consideration, where multiple antennas are deployed at the source, relay, and destination, channel impairments exist at the source-relay and relay-destination hops. The BF scheme is optimized to maximize the received signal-to-noise ratio (SNR). In order to evaluate the performance of the relay network, asymptotic average symbol error rate (ASER) at high SNR is derived. Computer simulations are conducted to show the superiority of the designed BF scheme and the impacts of channel impairments and antenna configurations on the performance of the MIMO AF relay systems. It is shown that the diversity order of the relay network can be reduced to one due to the channel impairments.

History

Journal

IEEE Access

Volume

5

Pagination

21840-21851

Location

Piscataway, N.J.

Open access

  • Yes

ISSN

2169-3536

eISSN

2169-3536

Language

English

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2017, IEEE

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC