Search Results - "Adachi, Fumiyuki"
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A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends, and Challenges
Published in IEEE Communications surveys and tutorials (01-01-2021)“…In the fifth-generation (5G) mobile communication system, various service requirements of different communication environments are expected to be satisfied. As…”
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2
6G: Opening New Horizons for Integration of Comfort, Security, and Intelligence
Published in IEEE wireless communications (01-10-2020)“…The innovations provided by sixth generation wireless communication (6G) as compared to fifth generation (5G) are considered in this article based on analysis…”
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3
The Application of MIMO to Non-Orthogonal Multiple Access
Published in IEEE transactions on wireless communications (01-01-2016)“…This paper considers the application of multiple-input multiple-output (MIMO) techniques to nonorthogonal multiple access (NOMA) systems. A new design of…”
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4
Deep Learning for Physical-Layer 5G Wireless Techniques: Opportunities, Challenges and Solutions
Published in IEEE wireless communications (01-02-2020)“…The new demands for high-reliability and ultra-high capacity wireless communication have led to extensive research into 5G communications. However, current…”
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5
Lightweight Automatic Modulation Classification Based on Decentralized Learning
Published in IEEE transactions on cognitive communications and networking (01-03-2022)“…Due to the implementation and performance limitations of centralized learning automatic modulation classification (CentAMC) method, this paper proposes a…”
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6
Sparse least mean fourth algorithm for adaptive channel estimation in low signal-to-noise ratio region
Published in International journal of communication systems (01-11-2014)“…SUMMARY Both least mean square (LMS) and least mean fourth (LMF) are popular adaptive algorithms with application to adaptive channel estimation. Because the…”
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7
Adaptive system identification using robust LMS/F algorithm
Published in International journal of communication systems (01-11-2014)“…ABSTRACT Adaptive system identification (ASI) problems have attracted both academic and industrial attentions for a long time. As one of the classical…”
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8
Sojourn Time-Based Velocity Estimation in Small Cell Poisson Networks
Published in IEEE communications letters (01-02-2016)“…Due to the increasing density of small cells, mobility management in heterogeneous networks has become a challenging task. One key challenge facing the…”
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Challenges for beyond 5G:ultra-densification of radio access network
Published in Tongxin Xuebao (25-11-2020)“…Ultra-densification of radio access network (RAN) is a key to efficiently support the exponentially growing mobile data traffic in 5G era.Furthermore,extremely…”
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10
A Study on User-antenna Cluster Formation for Cluster-wise MU-MIMO
Published in 2020 23rd International Symposium on Wireless Personal Multimedia Communications (WPMC) (19-10-2020)“…The ultra-dense radio access network (RAN) consisting of a large number of distributed antennas and user terminals is considered to improve link capacity and…”
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Conference Proceeding -
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Downlink Capacity Comparison of MMSE-SVD and BD-SVD for Cooperative Distributed Antenna Transmission Using Multi-User Scheduling
Published in 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall) (01-09-2017)“…Cooperative distributed antenna transmission (CDAT) is a promising transmission technique to achieve a high link capacity by exploiting the spatial…”
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Conference Proceeding -
12
Performance of Enhanced Interference Coordination Using Multi-layered Clustering for 5G Advanced Ultra-dense RAN
Published in 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring) (01-04-2021)“…Ultra-densification of radio access network (RAN) is essential to efficiently handle ever-increasing mobile data traffic. In ultra-dense RAN consisting of a…”
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Conference Proceeding -
13
Sparse Adaptive Iteratively-Weighted Thresholding Algorithm (SAITA) for L p -Regularization Using the Multiple Sub-Dictionary Representation
Published in Sensors (Basel, Switzerland) (01-12-2017)“…Both L1/2 and L2/3 are two typical non-convex regularizations of Lp ( 0<p<1 ), which can be employed to obtain a sparser solution than the L1 regularization…”
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14
Enhanced Interference Coordination and Radio Resource Management for 5G Advanced Ultra-dense RAN
Published in 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring) (01-05-2020)“…Ultra-densification of radio access network (RAN) is necessary to handle ever-increasing mobile data traffic even after starting of 5G services. Dense reuse of…”
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Conference Proceeding -
15
Research Project to Realize Various High-reliability Communications in Advanced 5G Network
Published in 2020 IEEE Wireless Communications and Networking Conference (WCNC) (01-05-2020)“…We started a new research project in the "advanced 5G" era that aims at accommodating various types of communications involving current and emerging services…”
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Conference Proceeding -
16
Performance Analysis of Fountain Codes in Multihop Relay Networks
Published in IEEE transactions on vehicular technology (01-11-2013)“…Fountain codes have been extensively employed in delay-tolerant networks (DTNs) due to their near-capacity performance with very low encoding/decoding…”
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17
A Blind Polyphase Time-Domain Selected Mapping for Filtered Single-Carrier Signal Transmission
Published in 2016 IEEE 84th Vehicular Technology Conference (VTC-Fall) (01-09-2016)“…Single-carrier (SC) signal has a low peak-to-average power ratio (PAPR) property. However, the PAPR of SC signal increases if transmit filtering and/or…”
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Conference Proceeding -
18
Minimizing Base Stations' ON/OFF Switchings in Self-Organizing Heterogeneous Networks: A Distributed Satisfactory Framework
Published in IEEE access (01-01-2017)“…The deployment of heterogeneous networks (HetNets) can significantly boost the network capacity. However, the large number of small cell base stations (SBSs)…”
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19
Fuzzy-Based Game Theoretic Mobility Management for Energy Efficient Operation in HetNets
Published in IEEE access (2017)“…The dense deployment of heterogeneous networks (HetNets) has shown to be a promising direction to cope with the capacity demands in the future 5G wireless…”
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20
Evaluation of Machine Learnable Bandwidth Allocation Strategy for User Cooperative Traffic Forwarding
Published in IEEE access (2019)“…In recent years, user cooperative traffic forwarding is a popular study topic and broadly seen as one of the important promising technologies to improve energy…”
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