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 : 2009-09 
Title : Capacity Enhancement of Femto-cell Using Reversed-Pair Frame Structure in OFDMA Systems 
Authors : Hano Wang, Daesik Hong 
Conference : IEEE Conference Vehicular Technology 
Abstract : Demanding on higher data rate in wireless commu-nications, femto-cell has been proposed to implement that witha low cost. The femto-cell can be realized by deploying a femto-base-station connected to the core network via a wired-backhaul. Through the wired-backhaul, a downlink and uplink data packets are delivered to the femto-base-station and the core network,respectively. Although the femto-cell with a low transmission power has a small cell coverage, co-channel interference problem between macro-cell and femto-cell has been an important research issue to deploy the femto-cell in the real world since the femto-cell reuses the macro-cell spectrum.
As a solution to the co-channel interference problem, wepropose a new time-division-duplex (TDD) frame structure called reversed-pair frame (RPF). The RPF consists of two TDD frames with a reversed order of downlink and uplink. Using the RPF and a wired-backhaul-delivered downlink data, capacity enhancement can be achieved through a simple interference mitigation process. We evaluate the performance of the RPF through analyzing the capacity of the two-user case, which is applied to multi-user case. The results show that adopting the RPF in a OFDMA femto-cell systems greatly enhances the uplink capacity of both the macro- cell and the femto-cell, and even downlink capacities of them than using the conventional TDD frame. 
URL : http://ieeexplore.ieee.org/xpl/articleDe...MA+Systems 
Download : http://mirinae.yonsei.ac.kr/?module=file...c891af31c6 
Hano Wang; Daesik Hong; , "Capacity Enhancement Using Reversed-Pair TDD Frame in OFDMA Femto-Cell Systems," Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th , vol., no., pp.1-5, 20-23 Sept. 2009
doi: 10.1109/VETECF.2009.5378847
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5378847&isnumber=5378665
List of Articles
Status Datesort
4 [ITC-CSCC] Kwonjong Lee, Jihaeng Heo, Yosub Park, and Daesik Hong,"A New Dynamic CoMP Based on User Location in Downlink Small Cell Networks", ITC-CSCC, July 2013 file Presented  2013-07 
3 [ICEIC] Dongkyu Kim, Hano Wang, and Daesik Hong, "On the Feasibility of a Overlay Cellular System for Future Military Networks," ICEIC2012, Feb. 2012 file Presented  2012-02 
2 [Other Conf. Papers] Hyungsik Ju, Seokwon Lee, Daesik Hong, Kiyoung Han, Jaeho Jeon, "Non-handover Based Mobility Management in Hierarchically Structured Cellular Networks", CNSR 2010, May 2010 file Presented  2010-05 
» [IEEE VTC] Hano Wang, Daesik Hong, "Capacity Enhancement of Femto-cell Using Reversed-Pair Frame Structure in OFDMA Systems", IEEE VTC, Sep. 2009 file Presented  2009-09