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 : 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

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» [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