OFDM Relay Cognitive Radio Multiple Antennas Resource Allocation Full Duplex Spectrum Sensing Synchronization Spectrum Sharing Channel Estimation Interference Cancellation Stochastic Geometry Energy Harvesting Feedback Bi-directional Heterogeneous Networks Equalization HetNet relay networks FBMC Ultra Low Power SC-FDMA TVWS Duplex Reliability CDMA MIMO interference channel capacity in-band full-duplex system interference suppression 5G C-V2V reinforcement learning RSRP weighting non-orthogonal multiple access (NOMA) health care 5G mobile communication indoor positioning Vehicle-to-vehicle communication estimated position overlapping Resource sharing Power allocation multi-access edge computing control overhead hybrid Rat-dependent positioning NR positioning smart factory UFMC Handoff Femtocell QAM CoMP power uncertainty - Computation offloading amplify and forward communication Zigbee body area networks resource block management frame structure WVAN inter user interference GFDM mode selection antenna arrays partial overlap LTE-based V2V resource selection maximum likelihood method Communication range Number of training blocks Vehicular communication Uplink SCMA system Dynamic TDD QR Factorization Metaheuristics FS-NOMA cross-link interference user fairness Multi-user Receiver Mode 3 V2X P-NOMA dynamic HetNet spectrum partitioning DQN D-TDD CLI massive connectivity and 5G networks. OTDOA estimated position updating distributed mode non-orthogonal multiple access Spatial capacity LTE-TDD —Device-to-device (D2D) Location-based overloading
Status : Presented 
Date : 2015-06 
Title : Capacity Comparison of Opportunistic Relaying System with Outdated Channel Information 
Authors : Seokjung Kim, Hyunsoo Kim, and Daesik Hong 
Conference : IEEE ICC 2015 
Abstract : In this paper, we investigate the impact of outdated channel state information (CSI) on the capacity of an opportunistic relaying system. We derive the closed-form expressions of the channel capacity and its associated outage probability of reactive relay selection for four adaptive transmission techniques. Analytical and numerical results show that the rate adaptation policy achieves better performance compared to the sub-optimal channel inversion in the presence of outdated CSI. In addition, design insights and useful observations for relay selection can be deduced from these results, implying that CSI accuracy in the source-relay link plays a significant role in determining the relay selection strategy for given system parameters. 
URL : http://ieeexplore.ieee.org/xpl/articleDe...earch=true 
Download : http://mirinae.yonsei.ac.kr/?module=file...le_srl=343 

Seokjung Kim; Hyunsoo Kim; Daesik Hong, "Capacity comparison of opportunistic relaying system with outdated channel information," inCommunications (ICC), 2015 IEEE International Conference on , vol., no., pp.2215-2220, 8-12 June 2015
doi: 10.1109/ICC.2015.7248654
keywords: {channel capacity;probability;relay networks (telecommunication);CSI;adaptive transmission techniques;channel capacity;opportunistic relaying system;outage probability;outdated channel state information;rate adaptation policy;reactive relay selection strategy;source-relay link;Accuracy;Adaptive systems;Data communication;Decoding;Relays;Signal to noise ratio;Wireless communication},
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7248654&isnumber=7248285

List of Articles
Status Datesort
» [IEEE ICC] Seokjung Kim, Hyunsoo Kim, and Daesik Hong, "Capacity Comparison of Opportunistic Relaying System with Outdated Channel Information," IEEE ICC 2015 file Presented  2015-06 
2 [Other Conf. Papers] Seokwon Lee, Dongkyu Kim, Haesoon Lee, Sungwoo Weon, and Daesik Hong,"FDR and HDR for AF Relaying with QoS Guarantees," ISCE, Jun. 2014 file Presented  2014-06 
1 [IEEE WCNC] Seokjung Kim, Seokwon Lee, Haesoon Lee, and Daesik Hong, "Capacity Analysis of Outdated Relay Selection in Opportunistic Relaying System using Adaptive Transmission Technique", IEEE WCNC, April. 2014 file Presented  2014-04