OFDM Relay Cognitive Radio Multiple Antennas Resource Allocation Full Duplex Spectrum Sensing Synchronization Spectrum Sharing Interference Cancellation Channel Estimation Feedback Stochastic Geometry Bi-directional Energy Harvesting Heterogeneous Networks FBMC HetNet Equalization relay networks Ultra Low Power TVWS MIMO interference SC-FDMA CDMA Duplex channel capacity interference suppression 5G Reliability C-V2V in-band full-duplex system OCBT CLI body area networks 5G mobile communication antenna arrays NR positioning health care Resource sharing Location-based LTE-TDD FS-NOMA Power allocation OTDOA hybrid control overhead estimated position overlapping resource block management amplify and forward communication power uncertainty CoMP quality of service cellular radio Rat-dependent positioning telecommunication traffic Handoff Femtocell inter user interference UFMC mode selection GFDM QAM Zigbee frame structure Vehicular communication Vehicle-to-vehicle communication non-orthogonal multiple access QR Factorization Spatial capacity LTE-based V2V Number of training blocks Communication range user fairness Mode 3 resource selection distributed mode maximum likelihood method Metaheuristics cross-link interference Dynamic TDD Uplink SCMA system V2X DQN estimated position updating —Device-to-device (D2D) spectrum partitioning dynamic HetNet indoor positioning D-TDD - Computation offloading multi-access edge computing P-NOMA partial overlap Subband filtering Multi-user Receiver reinforcement learning RSRP weighting smart factory
Status : Presented 
Date : 2016-09 
Title : Effects of Channel Estimation Errors on Ultra-Dense Small Cell Networks 
Authors : Yosub Park, Jihaeng Heo, Jintae Kim, Sooyong Choi, and Daesik Hong 
Conference : PIMRC 
Abstract : In this paper, we investigate the effect of channel estimation (CE) error on the performances for the ultra-dense small cell networks. Specifically, we examine its effect on the distribution of signal to interference and noise ratio (SINR) and trend of spectral efficiency (SE), and outage probability.
From these, we found out that the SINR degradation due to the CE errors becomes larger, as the density ratio of small base station (BS) to UE increases. We derived the theoretical lower bound of the outage probability, which is the function of CE correlation coefficient. Finally, numerical results demonstrate that the CE errors diminish the increasing scaling of SE, as the small BS density increases. 
Download : https://mirinae.yonsei.ac.kr/?module=fil...le_srl=343 

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List of Articles
No.
Status Datesort
2 [IEEE VTC] Kwonjong Lee, Yosub Park, Hano Wang, and Daesik Hong, "Dual Layer Small Cell On/Off Control for Ultra Dense Small Cell Networks ," IEEE VTC Spring 2017 file Presented  2017-06 
» [IEEE PIMRC] Yosub Park, Jihaeng Heo, Jintae Kim, Sooyong Choi, and Daesik Hong, "Effects of Channel Estimation Errors on Ultra-Dense Small Cell Networks," IEEE PIMRC 2016 file Presented  2016-09