Results 151 to 160 of about 2,448 (179)
Some of the next articles are maybe not open access.
Large-Scale MIMO Systems with Practical Power Constraints
2016 IEEE 84th Vehicular Technology Conference (VTC-Fall), 2016In this paper, we investigate the downlink of large-scale MIMO systems considering two practical constraints related to system power. More precisely, we consider a non-negligible circuit power consumption and we impose a per-antenna power constraint due to limitations on the linearity of the RF power amplifier.
Rami Hamdi, Elmahdi Driouch, Wessam Ajib
openaire +1 more source
Enabling Practical Large-Scale MIMO in WLANs With Hybrid Beamforming
IEEE/ACM Transactions on Networking, 2021In theory, the capacity of a wireless network grows linearly with the number of users and antennas equipped at the communication devices, and hence large-scale MU-MIMO can scale up the network throughput. However, three main challenges are impeding the implementation of this promising technology in the state-of-the-art WLANs. Firstly, the current large-
Zhe Chen 0015 +5 more
openaire +1 more source
Low-complexity multiuser detection for uplink large-scale MIMO
2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014In this paper, an iterative multiuser detector is proposed for uplink large-scale Multiple Input Multiple Output (MIMO). It is developed based on the Generalized Approximate Message Passing (GAMP) algorithm, and its convergence properties are analyzed by a one-dimensional iteration termed as State Evolution (SE).
Shengchu Wang +2 more
openaire +1 more source
Low Complexity Detection Algorithms in Large-Scale MIMO Systems
IEEE Transactions on Wireless Communications, 2016In this contribution, we present low-complexity detection algorithms in large-scale MIMO systems where they achieve significantly better bit error rate (BER) performance than known heuristic algorithms in large-scale MIMO literature, such as local ascent search (LAS) and reactive tabu search (RTS) algorithms, especially at higher-order modulations. The
Ali A. Elghariani, Michael D. Zoltowski
openaire +1 more source
Energy Management in Hybrid Energy Large-Scale MIMO Systems
IEEE Transactions on Vehicular Technology, 2017This paper investigates the energy consumption of distributed large-scale MIMO systems made up of a set of remote radio heads (RRHs), each of which is powered by both an independent energy harvesting source and the grid. The grid energy source allows to compensate for the randomness and intermittency of the harvested energy.
Rami Hamdi, Elmahdi Driouch, Wessam Ajib
openaire +1 more source
An Approach to the Simulation of Large-scale Interconnected MIMO Control Systems
IFAC Proceedings Volumes, 1987Abstract An approach to computer-aided modelling and simulation of multi-input-multi-output technological plants, of their local maltivariable control systems and of their large-scale interconnected system structures with two-level hierarhical control is presented.
G.M. Dimirovski +2 more
openaire +1 more source
A low complexity semidefinite relaxation for large-scale MIMO detection
Journal of Combinatorial Optimization, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rupaj Kumar Nayak +1 more
openaire +1 more source
Large-scale MIMO-based wireless backhaul in 5G networks
IEEE Wireless Communications, 2015In order to enhance the attainable transmission rates to the levels specified by future wireless communications, a paradigm shift from conventional small-scale MIMO to large-scale (LS)-MIMO is highly desirable. LS-MIMO technology as a “cleanslate” approach is shown to be capable of dramatically increasing the area spectral efficiency (SE, as measured ...
Zhongshan Zhang +4 more
openaire +1 more source
Efficient near-MMSE detector for large-scale MIMO systems
2017 IEEE International Workshop on Signal Processing Systems (SiPS), 2017In this paper, an improved and low-complexity signal detection approach for large-scale multiple-input multiple-output (MIMO) systems has been proposed. This approach utilizes the preconditioning technique to accelerate the conventional detection algorithm based on Gauss-Seidel (GS) iterative method, and achieves a detection performance close to the ...
Zhizhen Wu +3 more
openaire +1 more source
Improved Precoding Scheme for MmWave Large-Scale MIMO Systems
2019Millimeter wave (mmWave) system has been considered as a key technology in 5G, due to its large available bandwidth and high spectrum efficiency. For such system, the traditional full digital precoding is unrealistic due to the costs and complexity of radio-frequency(RF) chains. To overcome this difficulty, hybrid precoding is proposed.
Yiqi Lu +3 more
openaire +1 more source