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Title: Multiuser Precoding for Sum-Rate Maximization in Relay-Aided mmWave Communications
Authors: Yalçın, Ahmet Zahid
Yapıcı, Yavuz
Keywords: Amplify-and-forward (AF) relaying
convex optimization
minimum mean-square error (MMSE)
sum rate
Issue Date: Apr-2020
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Yalcin, A. Z., Yapici, Y. (2020). Multiuser Precoding for Sum-Rate Maximization in Relay-Aided mmWave Communications. IEEE Transactions on Vehicular Technology.
Abstract: Relay-aided transmission is envisioned as a key strategy to combat severe path loss and link blockages emerging as unique challenges in millimeter-wave (mmWave) communications. This work considers a relay-aided multiuser mmWave communications scenario aiming at maximizing the sum rate through optimal transmit and relay precoder design. We propose a novel joint precoder design strategy, which exploits weighted minimum mean-square error (WMMSE) using its equivalency to sum-rate maximization. We obtain closed form expressions of transmit and relay precoders, and propose to compute them through alternating-optimization iterations without having to resort to complicated numerical optimization techniques. Numerical results verify the superiority of the proposed precoding strategy as compared to conventional precoding schemes. © 1967-2012 IEEE.
ISSN: 189545
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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