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 : 2011-07 
Title : Rate Improvement of Beamforming Systems via Bi-Directional Use of Spatial Resources 
Authors : Hyungsik Ju, Xiaohu Shang, H. Vincent Poor, and Daesik Hong 
Conference : GLOBECOM 2011 
Abstract : This paper considers an increase in the achievable rate of beamforming systems in two-way communication, resulting from bi-directional use of the spatial resources. The concept of bidirectional use of the spatial resources is first introduced. Then, a condition is derived under which bi-directional beamforming (BB) has larger achievable rate than that of conventional beamforming operating via frequency division duplexing (UB-FDD). In addition, the variation in the achievable rate of bi-directional beamforming is investigated when echo interference is pre-cancelled in the air. Simulation results show that the achievable rate of BB is always larger when the echo is ideally eliminated, and is larger over a certain level of SNR and below a certain level of fading correlation than that of UB-FDD. 
URL : http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6133737 
Download : http://mirinae.yonsei.ac.kr/?module=file...249b10caa8 

Hyungsik Ju; Xiaohu Shang; Poor, H.V.; Daesik Hong; , "Rate Improvement of Beamforming Systems via Bi-Directional Use of Spatial Resources," Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE , vol., no., pp.1-5, 5-9 Dec. 2011
doi: 10.1109/GLOCOM.2011.6133737
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6133737&isnumber=6133457

List of Articles
No.
Status Datesort
4 [Other Conf. Papers] Dongkyu Kim, Hyungsik Ju, Seokjung Kim, and Daesik Hong, "Transmit Antenna-switched Receive Diversity for Bi-directional Beamforming in Two-way Communications," in IEEE ASILOMAR2013, Nov. 2013 file Presented  2013-11 
3 [ICEIC] Jihaeng Heo, Hyungsik Ju, Sungsoo Park, and Daesik Hong, "Method for Simultaneous Sensing and Data Transmission in CR Environments," ICEIC2013, Jan. 2013 file Presented  2013-01 
2 [ITC-CSCC] Dongkyu Kim, Hyungsik Ju and Daesik Hong, "Transmission Capacity of Bi-directional Beamforming in Two-way Ad-hoc Networks", ITC-CSCC, July 2012 file Presented  2012-07 
» [IEEE GLOBECOM] Hyungsik Ju, Xiaohu Shang, H. Vincent Poor, and Daesik Hong, "Rate Improvement of Beamforming Systems via Bi-Directional Use of Spatial Resources", GLOBECOM 2011, July 2011 file Presented  2011-07