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https://hdl.handle.net/20.500.11851/3852
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 |
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. | URI: | https://hdl.handle.net/20.500.11851/3852 https://ieeexplore.ieee.org/document/9068478 |
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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