Uplink Receiver with V-BLAST and Practical Considerations for Massive MIMO System
نویسنده
چکیده
Abstract—Massive multiple-input multiple-output (MIMO) systems equipped one base station (BS) with a large number of antenna arrays and allows for improvement on energy and spectral efficiency with the presence of linear signal processing. This paper first explores the fundamental models of massive MIMO from information theoretical perspective, then gives a deep insight of two linear precoders implemented (ZF and MMSE) and optimal ordering algorithm (V-BLAST). Performance analysis on the different precoding methodologies with respect to energy efficiency is provided with proper simulation. Besides, the inter-cell interference due to non-orthogonal pilot sequences in time-duplex division (TDD), or pilot contamination, is discussed after the simulation with current mitigation techniques. Lastly, the generalized issues such as hardware impairments are investigated in terms of their effect on massive MIMO system. Keywords—Energy efficiency; massive MIMO systems; zero forcing; MMSE; V-BLAST; pilot contamination; hardware impairments
منابع مشابه
Massive BLAST: An Architecture for Realizing Ultra-High Data Rates for Large-Scale MIMO
A detection scheme for uplink massive MIMO, dubbed massive-BLAST or M-BLAST, is proposed. The derived algorithm is an enhancement of the well-known soft parallel interference cancellation. Using computer simulations in massive MIMO application scenarios, M-BLAST is shown to yield a substantially better error performance with reduced complexity, compared to the benchmark alternative of a one-sho...
متن کاملPerformance of Uplink Multiuser Massive MIMO Systems
We study the performance of uplink transmission in a large-scale (massive) MIMO system, where all the transmitters have single antennas and the receiver (base station) has a large number of antennas. Specifically, we analyze achievable degrees of freedom of the system without assuming channel state information at the receiver. Also, we quantify the amount of power saving that is possible with i...
متن کاملPerformance Evaluation of Multiuser Detectors with V-BLAST to MIMO Channel
In this thesis, we evaluate the performance of multiuser detectors over an uplink using AWGN, Rayleigh flat fading single-input single-output (SISO) and multiple-input multiple-output (MIMO) channel models. First, we review the performance of three multiuser receivers; the decorrelator, the MMSE receiver and the multistage parallel interference cancellation receiver in an AWGN and Rayleigh flat...
متن کاملEnhanced Max-Min SINR for Uplink Cell-Free Massive MIMO Systems
In this paper, we consider the max-min signal-tointerference plus noise ratio (SINR) problem for the uplink transmission of a cell-free Massive multiple-input multipleoutput (MIMO) system. Assuming that the central processing unit (CPU) and the users exploit only the knowledge of the channel statistics, we first derive a closed-form expression for uplink rate. In particular, we enhance (or maxi...
متن کاملCapacity Of MIMO System With Optimally Ordered Successive Interference Cancellation
In wireless communications, spectrum is a scarce resource and hence imposes a high cost on the high data rate transmission. It has been demonstrated that multiple antenna system provides very promising gain in capacity without increasing the use of spectrum, reliability, throughput, power consumption and less sensitivity to fading, hence leading to a breakthrough in the data rate of wireless co...
متن کامل