OFDM Relay Cognitive Radio Multiple Antennas Resource Allocation Full Duplex Spectrum Sensing Synchronization Spectrum Sharing Interference Cancellation Channel Estimation Feedback Heterogeneous Networks Bi-directional Energy Harvesting Stochastic Geometry HetNet relay networks FBMC Equalization channel capacity TVWS CDMA interference in-band full-duplex system Duplex MIMO Ultra Low Power C-V2V 5G Reliability SC-FDMA interference suppression D-TDD CLI indoor positioning reinforcement learning RSRP weighting - Computation offloading smart factory Cell-free multi-access edge computing estimated position overlapping —Device-to-device (D2D) estimated position updating mMIMO control overhead hybrid NR positioning Femtocell Rat-dependent positioning frame structure Zigbee body area networks channel estimation error Handoff CoMP User grouping power uncertainty ultra-dense small cell network mode selection antenna arrays 5G mobile communication UFMC resource block management inter user interference WVAN health care partial overlap GFDM Dynamic TDD Multi-user Receiver Number of training blocks Uplink SCMA system V2X Vehicular communication cross-link interference LTE-TDD FS-NOMA Location-based user fairness Mode 3 QR Factorization Metaheuristics P-NOMA non-orthogonal multiple access dynamic HetNet spectrum partitioning and 5G networks. massive connectivity non-orthogonal multiple access (NOMA) overloading DQN OTDOA distributed mode Communication range resource selection maximum likelihood method Resource sharing Power allocation packet delay
Status : Presented 
Date : 2021-02 
Title : A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks 
Authors : Hyunjin Kim, Hyejin Kim, Jintae Kim, and Daesik Hong 
Conference : IEEE VTC Spring 2021 
Abstract : Dynamic heterogeneous networks (HetNets) in which small cells operate in dynamic time division duplex (DTDD) systems enable the instantaneous traffic load to be handled with greater spectral efficiency than conventional HetNets. However, combining HetNets and D-TDD systems causes cross-link interference (CLI) both within the same tier and across tiers, negatively impacting system performance. In this paper, we point out that small cells are underprivileged in terms of interference mitigation under the conventional spectrum partitioning usage. Accordingly, we propose employing a novel spectrum partitioning scheme that brings up interference scenarios where we can take advantage of multiple-input multiple-output (MIMO) compatibility from macro base stations. Simulation results show that the proposed spectrum usage in combination with general MIMO schemes achieves significant performance enhancement in terms of small cell capacity at the cost of a relatively small degradation in macro cell capacity. 
List of Articles
No.
Status Datesort
3 [IEEE VTC] Hanwoong Kim, Hakkeon Lee, Taehyung Kim, and Daesik Hong, "Cell-Free mMIMO Systems with Dynamic TDD" IEEE VTC Spring 2022 Presented  2022-06 
» [IEEE VTC] Hyunjin Kim, Hyejin Kim, Jintae Kim, and Daesik Hong, "A Novel Spectrum Partitioning Scheme for Dynamic Heterogeneous Networks" IEEE VTC Spring 2021 Presented  2021-02 
1 [IEEE GLOBECOM] Yeon-Geun Lim, Daesik Hong, and Chan-Byoung Chae, "Performance Analysis of Self-Interference Cancellation in Full-Duplex Large-Scale MIMO Systems", IEEE GLOBECOM 2016 Presented  2016-12