Results 61 to 70 of about 50,793 (224)
Dianxin kexue, 2016 In the massive MIMO system, the only full digital baseband precoding（FD-BP）scheme（such as full complexity zero forcing）requires the same number of radio frequency（RF）chains as the number of antenna elements, which leads to extreme high hardware cost, the
Shuai ZHANG +3 more
doaj +2 more sources
Designing Multi-User MIMO for Energy Efficiency: When is Massive MIMO the Answer? [PDF]
, 2014 Assume that a multi-user multiple-input multiple-output (MIMO) communication system must be designed to cover a given area with maximal energy efficiency (bit/Joule).
Björnson, Emil +3 more
core +4 more sources
Sum Rate and Fairness Analysis for the MU-MIMO Downlink under PSK Signalling: Interference Suppression vs Exploitation [PDF]
, 2018 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 rate in three
Masouros, Christos +2 more
core +1 more source
Distributed Linear Precoding and User Selection in Coordinated Multicell Systems
, 2015 In this manuscript we tackle the problem of semi-distributed user selection with distributed linear precoding for sum rate maximization in multiuser multicell systems.
Castañeda, Eduardo +3 more
core +1 more source
On the Throughput of Large-but-Finite MIMO Networks using Schedulers
, 2018 This paper studies the sum throughput of the {multi-user} multiple-input-single-output (MISO) networks in the cases with large but finite number of transmit antennas and users.
Alouini, Mohamed-Slim +2 more
core +1 more source
DFT codebook-based hybrid precoding for multiuser mmWave massive MIMO systems
EURASIP Journal on Advances in Signal Processing, 2020 In millimeter wave (mmWave) massive MIMO (multiple-input multiple-output) systems, it is difficult to apply conventional digital precoding techniques due to hardware constraints.
Yu Huang +3 more
doaj +1 more source
ICT Express, 2021 One of promising transmission technologies for beyond-5G wireless communication is cell-free massive MIMO where all the access nodes (ANs) cooperate to coherently serve all the user equipments (UEs).
Seung-Eun Hong
doaj +1 more source
Linear Precoding performance analysis in a Broadband satellite system with a 2-color dual-polarization reuse scheme [PDF]
, 2013 The potential of Joint Multiuser Processing in multi-beam satellite systems is assessed in this paper and proved to be a potential attractive alternative to current systems.
Alberty, Eric +4 more
core +1 more source
A Digital Predistortion Scheme Exploiting Degrees-of-Freedom for Massive MIMO Systems
, 2018 The primary source of nonlinear distortion in wireless transmitters is the power amplifier (PA). Conventional digital predistortion (DPD) schemes use high-order polynomials to accurately approximate and compensate for the nonlinearity of the PA.
Marojevic, Vuk +4 more
core +1 more source
Multiuser precoding scheme and achievable rate analysis for massive MIMO system
EURASIP Journal on Wireless Communications and Networking, 2018 We analyze the downlink multiuser precoding of massive multiple input multiple output (MIMO) system, where the base station (BS) has ideal channel state information (CSI) and adopts three types of different linear precoding schemes, i.e., maximum ratio ...
Weiqiang Tan +5 more
doaj +1 more source