How Much Training is Required for Multiuser Mimo?

By T. Marzetta. 2006 Fortieth Asilomar Conference on Signals, Systems and Computers, 2006

508 citations recorded by the source corpus.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/779609ac24d762695fe991139212ba4230686762

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In Computer Networks and Communications

In Electrical and Electronic Engineering

Citations in the corpus

A Comprehensive Survey of Pilot Contamination in Massive MIMO—5G System (2016, methodology): “Hence, the required channel information is obtained from transmitted pilots on the reverse link from UTs [22].”
Inter-Cell Interference in Noncooperative TDD Large Scale Antenna Systems (2013, background): “Such systems have been studied extensively (see [2]- [5] and references therein).”
Fifty Years of MIMO Detection: The Road to Large-Scale MIMOs (2015, background): “In other words, a large number of BS antennas, regardless of whether the uplink or the downlink is considered, may be exploited to trade for relevant performance improvements, such as compensating for the low SNR and/or poor channel estimates [25], [373], [605], [616].”
Large System Analysis of Linear Precoding in Correlated MISO Broadcast Channels Under Limited Feedback (2009, background): “This setup has b een considered in [35]–[37].”
Massive MIMO: An Introduction (2015, unknown): “A natural question follows: How do imperfect channel estimates affect the performance of linear precoding and decoding? In particular, as we add more antennas, does the quality of the CSI have to improve in order to maintain coherent gains proportional to M? The definitive answer is favorable: irres”
Argos: practical many-antenna base stations (2012, unknown): “This tradeoﬀ is explored theoretically in [16].”
Performance of Conjugate and Zero-Forcing Beamforming in Large-Scale Antenna Systems (2013, background): “Performance of Conjugate and Zero-Forcing Beamforming in Large-Scale Antenna Systems Hong Yang and Thomas L. Marzetta Abstract—Large-Scale Antenna Systems (LSAS) is a form of multi-user MIMO technology in which unprecedented numbers of antennas serve a significantly smaller number of autonomous…”
Blind Pilot Decontamination (2013, unknown): “I N [1], a multiple antenna system was proposed that mimics the idea of spread-spectrum.”
An Overview of Massive MIMO: Benefits and Challenges (2014, methodology): “In [12], a TDD protocol, shown in Fig.”
Massive MIMO Detection Techniques: A Survey (2019, background): “However, it is difficult to obtain the CSI for a large number of channels [32].”
Multiuser MIMO Achievable Rates With Downlink Training and Channel State Feedback (2007, background): “However, this paper presents a number of novelties relative to prior/concurrent work: • Rather than assuming perfect CSIR at the UT’s, we consider the realistic scenario where the UTs have imperfect CSIR obtained via downlink training.”
Achieving "Massive MIMO" Spectral Efficiency with a Not-so-Large Number of Antennas (2011, methodology): “For Time Division Duplexing (TDD) systems, exploiting channel reciprocity [16], [17], the CSIT can be obtained from the uplink pilot signals.”
Effects of channel aging in massive MIMO systems (2013, methodology): “Applying the method commonly used in prior work [8, 11, 12, 24], we derive a standard bound on the ergodic achievable uplink rates based on the worst-case uncorrelated additive noise.”
Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas (2010, background): “Multi-user MIMO operation with a large excess of base station antennas compared with terminals was advocated in [7] which considers a single-cell time-division duplex (TDD) scenario in which a time-slot over which the channel can be assumed constant is divided between reverse-link pilots and forward”
Pilot Reuse for Massive MIMO Transmission over Spatially Correlated Rayleigh Fading Channels (2015, methodology): “While for the OT scheme, the pilot length τ is set as τ = K if K ≤ T/ 2 , or τ = ⌊ T/ 2 ⌋ if K > T/ 2 where only ⌊ T/ 2 UTs are serviced simultaneously [6]. net The UL spectral efﬁciency performances of the PR scheme and the OT scheme are compared in Fig.”