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5 papers · 2 filters
Massive MIMO with Imperfect Channel Covariance Information
Emil Björnson, Luca Sanguinetti, Merouane Debbah
This work investigates the impact of imperfect statistical information in the uplink of massive MIMO systems. In particular, we first show why covariance information is needed and…
Massive MIMO Pilot Retransmission Strategies for Robustification against Jamming
Tan Tai Do, Hien Quoc Ngo, Trung Q. Duong +2
This letter proposes anti-jamming strategies based on pilot retransmission for a single user uplink massive MIMO under jamming attack. A jammer is assumed to attack the system both…
Pilot Contamination is Not a Fundamental Asymptotic Limitation in Massive MIMO
Emil Björnson, Jakob Hoydis, Luca Sanguinetti
Massive MIMO (multiple-input multiple-output) provides great improvements in spectral efficiency over legacy cellular networks, by coherent combining of the signals over a large an…
Downlink Power Control for Massive MIMO Cellular Systems with Optimal User Association
Trinh Van Chien, Emil Björnson, Erik G. Larsson
This paper aims to minimize the total transmit power consumption for Massive MIMO (multiple-input multiple-output) downlink cellular systems when each user is served by the optimiz…
Direct Localization for Massive MIMO
Nil Garcia, Henk Wymeersch, Erik G. Larsson +2
Large-scale MIMO systems are well known for their advantages in communications, but they also have the potential for providing very accurate localization thanks to their high angul…