Wiener-based smoother and predictor for massive-MIMO downlink system under pilot contamination
Sign Up to like & getrecommendations! Published in 2018 at "Telecommunication Systems"
DOI: 10.1007/s11235-017-0341-0
Abstract: One of the challenges in massive-MIMO system is pilot contamination during the channel estimation process. Pilot contamination can cause error or inaccurate channel estimation process for future fifth generation (5G) downlink transmissions. This paper considers… read more here.
Keywords: channel estimation; pilot; pilot contamination; wiener based ... See more keywords
Mitigating Pilot Contamination for Channel Estimation in Multi-cell Massive MIMO Systems
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DOI: 10.1007/s11277-020-07120-9
Abstract: Massive multiple-input multiple-output (MIMO) is a crucial technology platform for the fifth-generation of cellular systems (5G). However, massive MIMO systems are affected by pilot contamination, which influences the data rate of the system. This contamination… read more here.
Keywords: estimation; pilot contamination; massive mimo; contamination ... See more keywords
Spectral Efficiency of Network-Assisted Full-Duplex for Cell-Free Massive MIMO System Under Pilot Contamination
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3100491
Abstract: A cell-free massive multiple-input multiple-output (MIMO) network-assisted full-duplex (NAFD) system has been proposed to satisfy the exploding demand of higher data transmission speed and more efficient communication. However, a growing number of users in a… read more here.
Keywords: system; cell free; free massive; pilot contamination ... See more keywords
Higher Secrecy Capacity by Successive Pilot Contamination and Jamming Cancellation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3229615
Abstract: We present a secure transmission method for orthogonal frequency division multiplexing (OFDM) signaling between legitimate nodes (Alice and Bob) communicating in time-division duplex (TDD) mode under an active attack. An active eavesdropper carries out pilot… read more here.
Keywords: secrecy capacity; contamination; pilot; pilot contamination ... See more keywords
Secrecy Rate Analysis for Pilot Contamination Attacks in Massive MIMO With Limited RF Chains
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2018.2861402
Abstract: Pilot contamination attacks in training-based massive multiple-input multiple-output systems with limited radio-frequency chains are investigated. A lower bound for the achievable secrecy rate in the presence of a multi-antenna active eavesdropper is derived in closed-form.… read more here.
Keywords: contamination attacks; pilot contamination; secrecy rate; rate ... See more keywords
Pilot Contamination Attack Detection and Defense Strategy in Wireless Communications
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DOI: 10.1109/lsp.2019.2913085
Abstract: In the channel training phase, the attacker launches a pilot contamination attack by sending a synchronized and identical pilot signal with the legitimate transmitter. Such an attack can contaminate the channel estimation and alter the… read more here.
Keywords: attack detection; attack; contamination attack; pilot contamination ... See more keywords
Performance Analysis of Massive MIMO Two-Way Relay Networks With Pilot Contamination, Imperfect CSI, and Antenna Correlation
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2018.2812724
Abstract: We consider a multicell two-way relay network consisting of single-antenna user nodes and amplify-and-forward relay nodes having very large antenna arrays. We investigate the combined impact of co-channel interference (CCI), imperfect channel state information (CSI),… read more here.
Keywords: relay; mimo; pilot contamination; antenna correlation ... See more keywords
Spectral and Energy Efficiency of Superimposed Pilots in Uplink Massive MIMO
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2018.2860939
Abstract: Next-generation wireless networks aim at providing substantial improvements in spectral efficiency (SE) and energy efficiency (EE). Massive MIMO has been proved to be a viable technology to achieve these goals by spatially multiplexing several users… read more here.
Keywords: massive mimo; pilot; pilot contamination; energy efficiency ... See more keywords