Results 231 to 240 of about 51,994 (258)
Some of the next articles are maybe not open access.
Pilot Contamination in Massive MIMO Communications
2020Massive multiple-input multiple-output (MIMO) has been considered as one of the most promising technologies for addressing high data rates and capacity for cellular networks in the fifth generation and beyond. In massive MIMO, the base station (BS) requires complete and accurate channel state information (CSI) for realizing the benefits of massive MIMO
Abhinaba Dey +2 more
openaire +1 more source
Pilot reuse with a large number of antennas: Performance analysis and pilot contamination reduction
2017 9th International Conference on Wireless Communications and Signal Processing (WCSP), 2017The performance of massive multiple-input multiple-output (MIMO) systems is heavily affected by pilot contamination. This paper considers the problem of pilot contamination in massive MIMO systems, and investigates the normalized mean square error (NMSE) of the minimum mean square error (MMSE) channel estimation algorithm in the presence of pilot ...
Junhui Zhao 0001 +3 more
openaire +1 more source
On the Estimation of Slow-Fading Coefficients for Pilot Contamination Precoding
2014 IEEE 79th Vehicular Technology Conference (VTC Spring), 2014Massive multiple-input multiple-output (MIMO) has been actively studied for next generation wireless systems since it can provide high data rate and an improved energy efficiency in multiuser systems using large antenna arrays at base stations (BSs).
Jinho Choi 0001, Jeongseok Ha
openaire +1 more source
Detection of Pilot Contamination Attack in Massive MIMO System
2018 52nd Asilomar Conference on Signals, Systems, and Computers, 2018In this work, we present low complexity method to detect pilot contamination attack (PCA) by eavesdropper (Eve) on legitimate user (LU) in massive MIMO (MaMIMO) systems. In PCA, Eve transmits pilot signal in synchronization with LU to steer partial beam towards Eve.
Muhammad Hassan +2 more
openaire +1 more source
Bacterial Contamination of Inhalation Chambers: Results of a Pilot Study
Journal of Aerosol Medicine, 2004Spacers are used in the treatment of children with asthma. It is advised to clean the spacers regularly. However, cleaning can influence drug delivery. One obvious reason to clean a spacer is prevention of bacterial contamination. Whether spacers are contaminated or not is unknown.
Tjalling W, de Vries +2 more
openaire +2 more sources
Fog Massive MIMO with On-the-Fly Pilot Contamination Control
2018 IEEE International Symposium on Information Theory (ISIT), 2018This paper considers a new architecture underpinned by on-the-fly pilot contamination control, termed Fog massive MIMO, where the users are able to establish high-throughput and low-latency data links in a seamless and opportunistic manner, as they travel through a dense fog of high capacity Remote Radio Heads (RRHs).
Ratheesh Kumar Mungara +4 more
openaire +1 more source
PilotâScale Constructed Wetlands for PetroleumâContaminated Groundwater
Water Environment Research, 2007A pilot study was conducted to determine the feasibility of using constructed treatment wetlands to remediate recovered groundwater from the subsurface of a former refinery site. The pilot system consisted of four subsurface flow treatment cells operated in an upward vertical flow mode and equipped with subsurface aeration lines.
Marjorie E, Bedessem +2 more
openaire +2 more sources
Pilot Contamination Reduction for Access Point Clustering-based Pilot Assignment
2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2023Mariam Mussbah +2 more
openaire +1 more source
Large-Scale MIMO Pilot Contamination: Deep Learning-Assisted Pilot Assignment Scheme
Wireless Personal Communications, 2022Mudassir Masood
exaly