Full Duplex HetNet FBMC relay networks Channel Estimation Interference Cancellation interference channel capacity MIMO CLI synchronization interference suppression in-band full-duplex system D-TDD 5G Multiple Antennas inter user interference OFDM mode selection WVAN channel estimation error UFMC 5G mobile communication timing misalignment ultra-dense small cell network GFDM reinforcement learning multi-access edge computing health care RSRP weighting - Computation offloading —Device-to-device (D2D) antenna arrays power uncertainty resource block management frame structure QAM Poisson arrival Short burst transmission mMTC User association Traffic Capacity OCBT Waveforms Time-division duplex self interference cancellation body area networks cellular radio quality of service amplify and forward communication Cognitive radio telecommunication traffic intercarrier interference Zigbee indoor positioning intersymbol interference spectrum sharing Cell-free Uplink SCMA system Number of training blocks Reliability Communication range Mode 3 resource allocation P-NOMA partial overlap Vehicular communication resource selection maximum likelihood method V2X user fairness cross-link interference Dynamic TDD LTE-TDD Metaheuristics QR Factorization Multi-user Receiver FS-NOMA non-orthogonal multiple access C-V2V OTDOA mMIMO User grouping packet delay estimated position updating Resource sharing Rat-dependent positioning NR positioning estimated position overlapping non-orthogonal multiple access (NOMA) overloading Power allocation Location-based distributed mode DQN spectrum partitioning massive connectivity and 5G networks. dynamic HetNet smart factory
Status : Presented 
Date : 2023-06 
Title : Weighted Caching Strategy for LEO Satellite Communication Systems 
Authors : Hyunwoo Lee, Jehyun Heo, Joohyun Son, Minchul Hong, Hanwoong Kim, Seungwoo Sung, Gayeon Ahn, and Daesik Hong 
Conference : ITC-CSCC 
Abstract : Caching services can be provided to global users when cache servers are mounted on low-earth orbit (LEO) satellites. However, it is difficult to apply the caching techniques used on terrestrial networks because the LEO satellite communication (SatCom) system is different from terrestrial networks. In this paper, we propose a weighted caching strategy using regional correlation for LEO SatCom systems. To be specific, we process real-world data and find that file popularity in neighboring regions tends to be more similar. A regional correlated system model reflecting these characteristics is designed and an appropriate caching strategy for this system model is proposed. Simulation results show that the proposed weighted caching strategy outperforms conventional dynamic caching techniques. 

.

List of Articles
No.
Status Datesort
» [ITC-CSCC] Hyunwoo Lee, Jehyun Heo, Joohyun Son, Minchul Hong, Hanwoong Kim, Seungwoo Sung, Gayeon Ahn, and Daesik Hong, "Weighted Caching Strategy for LEO Satellite Communication Systems", ITC-CSCC 2023 Presented  2023-06 
4 [ITC-CSCC] Incheol Hwang, Hyejin Kim, Taehyung Kim, and Daesik Hong, "Location-based Resource Selection in Distributed Mode of C-V2V Systems," ITC-CSCC 2019 Presented  2019-05 
3 [ITC-CSCC] Joonki Kim, Jintae Kim, and Daesik Hong, "End-to-End Delay Minimization in FD Communication Systems," ITC-CSCC 2017 file Presented  2017-07 
2 [ITC-CSCC] Taehyung Kim, Insik Jung, Jehyun Heo, Sooyong Choi, and Daesik Hong, "Carrier Frequency Offset Compensation for OFDM-based Uplink SCMA System," ITC-CSCC 2017 file Presented  2017-07 
1 [ITC-CSCC] Garam Yu, Haesoon Lee, Joonki Kim, and Daesik Hong, "Inter-Cell Interference Suppression at Wireless Vehicle Access Networks with Distributed Subcarrier Mapped OFDM," ITC-CSCC 2016 file Presented  2016-07