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pro vyhledávání: '"Nguyen, Ly"'
Precoding is a critical and long-standing technique in multi-user communication systems. However, the majority of existing precoding methods do not consider channel coding in their designs. In this paper, we consider the precoding problem in multi-us
Externí odkaz:
http://arxiv.org/abs/2410.22640
This paper focuses on precoding design in multi-antenna systems with improper Gaussian interference (IGI), characterized by correlated real and imaginary parts. We first study block level precoding (BLP) and symbol level precoding (SLP) assuming the
Externí odkaz:
http://arxiv.org/abs/2409.07034
A reconfigurable intelligent surface (RIS) is a prospective wireless technology that enhances wireless channel quality. An RIS is often equipped with passive array of elements and provides cost and power-efficient solutions for coverage extension of
Externí odkaz:
http://arxiv.org/abs/2403.09270
Autor:
Nguyen, Ly V., Swindlehurst, A. Lee
Joint device-to-device (D2D) and cellular communication is a promising technology for enhancing the spectral efficiency of future wireless networks. However, the interference management problem is challenging since the operating devices and the cellu
Externí odkaz:
http://arxiv.org/abs/2312.03977
Autor:
Nguyen, Ly V., Swindlehurst, A. Lee
To reap the benefits of reconfigurable intelligent surfaces (RIS), channel state information (CSI) is generally required. However, CSI acquisition in RIS systems is challenging and often results in very large pilot overhead, especially in unstructure
Externí odkaz:
http://arxiv.org/abs/2309.11485
Autor:
Nguyen Ly, Matthias Ihme
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-5 (2024)
Externí odkaz:
https://doaj.org/article/aca007b666d24f9d9c92990d873976da
Autor:
Nguyen, Nhan Thanh, Nguyen, Ly V., Shlezinger, Nir, Eldar, Yonina C., Swindlehurst, A. Lee, Juntti, Markku
Joint communications and sensing (JCAS) is envisioned as a key feature in future wireless communications networks. In massive MIMO-JCAS systems, hybrid beamforming (HBF) is typically employed to achieve satisfactory beamforming gains with reasonable
Externí odkaz:
http://arxiv.org/abs/2307.04376
One-bit digital-to-analog converters (DACs) are a practical and promising solution for reducing cost and power consumption in massive multiple-input multiple-output (MIMO) systems. However, the one-bit precoding problem is NP-hard and even more chall
Externí odkaz:
http://arxiv.org/abs/2303.11125
Cell-free massive MIMO is a promising technology for beyond-5G networks. Through the deployment of many cooperating access points (AP), the technology can significantly enhance user coverage and spectral efficiency compared to traditional cellular sy
Externí odkaz:
http://arxiv.org/abs/2301.04260
Massive multiple-input multiple-output (MIMO) communications using low-resolution analog-to-digital converters (ADCs) is a promising technology for providing high spectral and energy efficiency with affordable hardware cost and power consumption. How
Externí odkaz:
http://arxiv.org/abs/2212.01717