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) D-TDD dynamic HetNet indoor positioning spectrum partitioning - Computation offloading multi-access edge computing P-NOMA partial overlap Subband filtering Multi-user Receiver reinforcement learning RSRP weighting smart factory
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
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» [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