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相关论文: On Estimating Maximum Sum Rate of MIMO Systems wit…

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In the scalar dirty multiple-access channel, in addition to Gaussian noise, two additive interference signals are present, each known non-causally to a single transmitter. It was shown by Philosof et al. that for strong interferences, an…

信息论 · 计算机科学 2017-06-20 Anatoly Khina , Yuval Kochman , Uri Erez

The downlink of a single cell base station (BS) equipped with large-scale multiple-input multiple-output (MIMO) system is investigated in this paper. As the number of antennas at the base station becomes large, the power consumed at the RF…

信息论 · 计算机科学 2019-07-18 Rami Hamdi , Wessam Ajib

This paper proposes two low-complexity iterative algorithms to compute the capacity of a single-user multiple-input multiple-output channel with per-antenna power constraint. The first method results from manipulating the optimality…

信息论 · 计算机科学 2017-05-18 Thuy M. Pham , Ronan Farrell , Le-Nam Tran

We consider a multi-cell multiple-input multiple-output (MIMO) coordinated downlink transmission, also known as network MIMO, under per-antenna power constraints. We investigate a simple multiuser zero-forcing (ZF) linear precoding…

信息论 · 计算机科学 2013-04-18 Saeed Kaviani , Witold A. Krzymien

In this paper, we analyze the sum rate performance of multi-user multiple-input multiple-output (MU-MIMO) systems, with a finite constellation phase-shift keying (PSK) input alphabet. We analytically calculate and compare the achievable sum…

信号处理 · 电气工程与系统科学 2018-12-07 Abdelhamid Salem , Christos Masouros , Kai-Kit Wong

There is a demand for the same data content from several user equipments (UEs) in many wireless communication applications. Physical-layer multicasting combines the beamforming capability of massive MIMO (multiple-input multiple-output) and…

信号处理 · 电气工程与系统科学 2025-04-09 Mahmoud Zaher , Emil Björnson

This paper studies the transmit power optimization in a multi-cell massive multiple-input multiple-output (MIMO) system. To overcome the scalability issue of network-wide max-min fairness (NW-MMF), we propose a novel power control (PC)…

信息论 · 计算机科学 2021-05-24 Amin Ghazanfari , Hei Victor Cheng , Emil Björnson , Erik G. Larsson

This paper considers uplink massive multiple-input multiple-output (MIMO) systems with lowresolution analog-to-digital converters (ADCs) over Rician fading channels. Maximum-ratio-combining (MRC) and zero-forcing (ZF) receivers are…

信号处理 · 电气工程与系统科学 2019-06-25 Tianle Liu , Jun Tong , Qinghua Guo , Jiangtao Xi , Yanguang Yu , Zhitao Xiao

A generalization of the Gaussian dirty-paper problem to a multiple access setup is considered. There are two additive interference signals, one known to each transmitter but none to the receiver. The rates achievable using Costa's…

信息论 · 计算机科学 2009-04-14 Tal Philosof , Ram Zamir , Uri Erez , Ashish Khisti

Precoding design for maximizing weighted sum-rate (WSR) is a fundamental problem for downlink of massive multi-user multiple-input multiple-output (MU-MIMO) systems. It is well-known that this problem is generally NP-hard due to the…

信号处理 · 电气工程与系统科学 2023-03-22 Xiaotong Zhao , Siyuan Lu , Qingjiang Shi , Zhi-Quan Luo

Modern 5G wireless cellular networks use massive multiple-input multiple-output (MIMO) technology. This concept entails using an antenna array at a base station to concurrently service many mobile devices that have several antennas on their…

信息论 · 计算机科学 2023-06-09 Evgeny Bobrov , Boris Chinyaev , Viktor Kuznetsov , Dmitrii Minenkov , Daniil Yudakov

This paper considers the fundamental power allocation problem in cell-free massive mutiple-input and multiple-output (MIMO) systems which aims at maximizing the total energy efficiency (EE) under a sum power constraint at each access point…

信息论 · 计算机科学 2022-01-21 Trang C. Mai , Hien Quoc Ngo , Le-Nam Tran

We reconsider the problem of joint power control and beamforming design to maximize the weighted sum rate in large and potentially cell-free massive MIMO networks. In contrast to the available short-term methods, where an iterative…

信息论 · 计算机科学 2024-07-09 Lorenzo Miretti , Emil Björnson , Sławomir Stańczak

This paper investigates a wireless powered communication network (WPCN) under the protocol of harvest-then-transmit,where a hybrid access point with constant power supply replenishes the passive user nodes by wireless power transfer in the…

信息论 · 计算机科学 2014-03-17 Qian Sun , Gang Zhu , Chao Shen , Xuan Li , Zhangdui Zhong

This paper focuses on the fundamental problem of maximizing the achievable weighted sum rate (WSR) at information receivers (IRs) in an intelligent reflecting surface (IRS) assisted simultaneous wireless information and power transfer…

信号处理 · 电气工程与系统科学 2023-03-02 Vaibhav Kumar , Anastasios Papazafeiropoulos , Muhammad Fainan Hanif , Le-Nam Tran , Mark F. Flanagan

In this paper, we propose a new, combined Zero-Forcing Per-Group Precoding (ZF-PGP) method that achieves very high gains in comparison to ZF Precoding techniques, while it simultaneously offers individually separate streams to reach…

信息论 · 计算机科学 2018-10-22 Thomas Ketseoglou , Ender Ayanoglu

Efficient implementation of massive multiple-input-multiple-output (MIMO) transceivers is essential for the next-generation wireless networks. To reduce the high computational complexity of the massive MIMO transceiver, in this paper, we…

信息论 · 计算机科学 2024-11-15 Yiming Fang , Li Chen , Yunfei Chen , Huarui Yin

We take two new approaches to design efficient algorithms for transmitter optimization under rate constraints, to guarantee the Quality of Service in general MIMO interference networks, which is a combination of multiple interfering…

信息论 · 计算机科学 2013-11-26 An Liu , Youjian , Liu , Haige Xiang , Wu Luo

In this work, a new energy-efficiency performance metric is proposed for MIMO (multiple input multiple output) point-to-point systems. In contrast with related works on energy-efficiency, this metric translates the effects of using finite…

网络与互联网体系结构 · 计算机科学 2018-04-09 Vineeth S. Varma , Samson Lasaulce , Merouane Debbah , Salah Eddine Elayoubi

We analyze scheduling algorithms for multiuser communication systems with users having multiple antennas and linear receivers. When there is no feedback of channel information, we consider a common round robin scheduling algorithm, and…

信息论 · 计算机科学 2016-11-18 Raymond H. Y. Louie , Matthew R. McKay , Iain B. Collings