An OAuth based authentication mechanism for IoT networks. - Shamini Emerson; Young-Kyu Choi; DongYeop Hwang; Kang-Seok Kim; Ki-Hyung Kim (ICTC, 2015)

Multi-antenna channel capacity enhancement in wireless communication. - Haftu Reda Nigus; Ki-Hyung Kim; Dongyeop Hwang; Hassen Redwan Hussen (ICUFN, 2015)

An ECDH-based light-weight mutual authentication scheme on local SIP. - Jinhee Seo; Jihong Park; Young Jun Kim; DongYeop Hwang; Kangseok Kim; Ki-Hyung Kim; Ki-Beon Lee (ICUFN, 2015)

Reducing positioning errors in the important access point selection method for fingerprint localization by spatial partitioning. - HaeSung Kim; DongYeop Hwang; Ki-Hyung Kim; Jai-Jin Jung (ICOIN, 2017)

Risk analysis and countermeasure for bit-flipping attack in LoRaWAN. - JungWoon Lee; DongYeop Hwang; Jihong Park; Ki-Hyung Kim (ICOIN, 2017)

Scenario and countermeasure for replay attack using join request messages in LoRaWAN. - SeungJae Na; DongYeop Hwang; Woonseob Shin; Ki-Hyung Kim (ICOIN, 2017)

Dynamic Access Control Scheme for IoT Devices using Blockchain. - DongYeop Hwang; Jungyong Choi; Ki-Hyung Kim (ICTC, 2018)

A TOTP-Based Two Factor Authentication Scheme for Hyperledger Fabric Blockchain. - Woo-Suk Park; DongYeop Hwang; Ki-Hyung Kim (ICUFN, 2018)

A hybrid mode to enhance the downward route performance in routing protocol for low power and lossy networks. - Sukho Oh; DongYeop Hwang; Kangseok Kim; Ki-Hyung Kim (Int. J. Distributed Sens. Networks, 2018)

Escalator: An Autonomous Scheduling Scheme for Convergecast in TSCH. - Sukho Oh; DongYeop Hwang; Ki-Hyung Kim; Kangseok Kim (Sensors, 2018)

Improving TDoA Based Positioning Accuracy Using Machine Learning in a LoRaWan Environment. - JaeSik Cho; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2019)

Blockchain-Based Management of Video Surveillance Systems. - Yena Jeong; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2019)

Proof-of-Lottery: Design for Block Producing Algorithm Based on PoS for Scalability. - Sung-bin Lee; DongYeop Hwang; Jonghyun Kim; Ki-Hyung Kim (ICOIN, 2020)

Analysis on the Privacy of DID Service Properties in the DID Document. - Kyung-Hoon Kim; Seungjoo Lim; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2021)

Attribute-Based Access Control(ABAC) with Decentralized Identifier in the Blockchain-Based Energy Transaction Platform. - Beomseok Kim; Woonseob Shin; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2021)

A Subject-Centric Credential Management Method based on the Verifiable Credentials. - Seungjoo Lim; Min-Hyung Rhie; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2021)

Vulnerability Analysis of DID Document's Updating Process in the Decentralized Identifier Systems. - Min-Hyung Rhie; Kyung-Hoon Kim; DongYeop Hwang; Ki-Hyung Kim (ICOIN, 2021)