Results 31 to 40 of about 56,164 (284)
Pilot Allocation Scheme for Pseudo-random Sequence Scrambling in Massive MIMO System
Journal of Harbin University of Science and Technology, 2021 In this paper，a scheme of joint polar coordinate pilot assignment and pseudo-random code pilot design is proposed to solve the pilot contamination caused by the reuse of the same pilot sequence in each cell of the Massive MIMO system.
HAN Zhi-yu +4 more
doaj +1 more source
A pilot program for assigned reading by residents in consultation psychiatry
Psychosomatics, 1986 Abstract To increase the likelihood of their reading pertinent literature, the 27 residents in five consultation-liaison (C-L) training programs were required to present written responses to short-answer, examination-type questions derived from articles previously linked to a set of teaching objectives in C-L psychiatry.
B L, Frankel +4 more
openaire +2 more sources
Pilot Assignment for Cell-Free Massive MIMO: A Spectral Clustering Approach
, 2023 In this letter, we study the pilot assignment scheme in the uplink cell-free massive multiple-input multiple-output system. To accurately depict the potential co-pilot interference (CPI) among the user terminals (UTs), we introduce the normalized ...
Long Zhang (8148420) +2 more
core +1 more source
BMC Medical Education, 2023 Background The need for clinical placements outside traditional teaching hospitals for medical students is growing, both due to a decrease in hospital beds and the expansion of medical students.
Paul Pålsson +4 more
doaj +1 more source
Pilot Assignment Schemes for Cell-Free Massive MIMO Systems
CoRR, 2021 In this work, we propose three pilot assignment schemes to reduce the effect of pilot contamination in cell-free massive multiple-input-multiple-output (MIMO) systems. Our first algorithm, which is based on the idea of random sequential adsorption (RSA) process from the statistical physics literature, can be implemented in a distributed and scalable ...
Priyabrata Parida, Harpreet S. Dhillon
openaire +2 more sources
A Robust Approach to Dynamic Pilot Assignment in Distributed Massive MIMO Networks
, 2023 We investigate the pilot assignment problem in dynamic distributed massive multiple-input multiple-output (DMIMO) systems, where a large number of access points (APs) are randomly distributed in a large cell and serve a smaller number of users in a ...
Yi, Xinping, +3 more
core +1 more source
EURASIP Journal on Wireless Communications and Networking, 2022 In this paper, we investigate the uplink transmission for user-centric cell-free massive multiple-input multiple-output (MIMO) systems. The largest-large-scale-fading-based access point (AP) selection method is adopted to achieve a user-centric operation.
Chen Wei +5 more
doaj +1 more source
Scalable Cell-Free Massive MIMO System: Joint Optimal Pilot and Access Point Assignment
IEEE AccessCell-free massive MIMO (CF-mMIMO) is a promising topology for 6G wireless networks which can potentially improve the network capacity. Pilot contamination, network overloading and scalability are the main challenges in the design of CF-mMIMO systems.
Mhammad B. Hmayed, Ali H. Bastami
doaj +1 more source
IEEE Access, 2015 In this paper, we study the joint pilot assignment and resource allocation for system energy efficiency (SEE) maximization in the multi-user and multi-cell massive multi-input multi-output network.
Tri Minh Nguyen +2 more
doaj +1 more source
Access Point Clustering-based Pilot Assignment for Cell-free Massive MIMO
, 2022 This paper presents an access point (AP) clustering-based pilot assignment scheme for cell-free massive multiple-input multiple-output systems. We use a graph to represent the relative positions of APs in the environment and cluster the APs into groups ...
Schwarz, Stefan; orcid: +2 more
core +1 more source