A High-Speed LED Driver That Sweeps Out the Remaining Carriers for Visible Light Communications

Toshiki Kishi, Hiroyuki Tanaka, Yohtaro Umeda, +1

Journal of Lightwave Technology

Wireless CommunicationsEngineeringVisible Light CommunicationsCmos InverterOptical Wireless Communication +14

Q-Learning Aided Resource Allocation and Environment Recognition in LoRaWAN With CSMA/CA

Naoki Aihara, Koichi Adachi, Osamu Takyu, +2

IEEE Access

Environment RecognitionLorawan NodesEngineeringEdge ComputingPdr Performance +13

Change of read range for UHF passive RFID tags in close proximity

Yu Tanaka, Yukio Umeda, Osamu Takyu, +2

Rf DevicesEngineeringRadio FrequencyReverse LinkAntenna +7

Packet-Level Index Modulation for LoRaWAN

Koichi Adachi, Kohei Tsurumi, Aoto Kaburaki, +3

IEEE Access

Lorawan NodeElectrical EngineeringLorawan NodesEngineeringMultiple Access Technique +11

High-speed LED driver for visible light communications with drawing-out of remaining carrier

Hiroyuki Tanaka, Yohtaro Umeda, Osamu Takyu

Free-space Optical NetworkPhotonicsEngineeringOphthalmologyHorizontal Eye +11

Data Tracking and Effect of Frequency Offset to Simultaneous Collecting Method for Wireless Sensor Networks

Ryo Myoenzono, Osamu Takyu, Keiichiro Shirai, +4

International Journal of Distributed Sensor Networks

Simultaneous Multidata CollectionSimultaneous Collecting MethodEngineeringSensor Signal ProcessingWireless Sensor System +10

Autonomous Decentralized Traffic Control Using Q-Learning in LPWAN

Aoto Kaburaki, Koichi Adachi, Osamu Takyu, +2

IEEE Access

Intelligent Traffic ManagementAutonomous NetworkEngineeringLpwan NodesEdge Computing +12

Adaptive Resource Allocation Utilizing Periodic Traffic and Clock Drift in LPWAN

Aoto Kaburaki, Koichi Adachi, Osamu Takyu, +2

IEEE Transactions on Wireless Communications

Simple Clock Drift Estimation and Compensation for Packet-Level Index Modulation and Its Implementation in LoRaWAN

Kohei Tsurumi, Aoto Kaburaki, Koichi Adachi, +3

IEEE Internet of Things Journal

Physical layer network coding with multiple untrusted relays for physical layer security

Yamaguchi Kazuma, Osamu Takyu, Tomoaki Ohtsuki, +2

Wireless CommunicationsEngineeringInformation SecurityPhysical Layer NetworkHardware Security +14