PROJECT TITLE :
Dynamic TDD Support in Macrocell-Assisted Small Cell Architecture
Dynamic allocation of subframes to uplink (UL) or downlink (DL) in time division duplex (TDD), termed 'Dynamic TDD,’ has been studied by the 3rd Generation Partnership Project (3GPP) since the Long Term Evolution (LTE) Release eleven timeframe. At the identical time, 3GPP is also standardizing macrocell-assisted tiny cell heterogeneous architectures for inclusion in LTE Release twelve as a answer providing high data rate to user terminals (UEs) along with high system capacity through spatial reuse of spectrum. During this paper, we specialise in a explicit tiny cell design proposed by DOCOMO, known as the Phantom Cell architecture, that provides the choice to support dynamic TDD. For an arbitrarily-located UE in a very little cell network, we apply results from stochastic geometry to derive expressions for the distribution of DL signal to interference and noise ratio (SINR) at an arbitrary UE and the distribution of UL SINR at its serving base station (BS). The analytical results are verified by system level simulations. These results will be used to study aspects of system design for little cells, and the sensitivity of SINR to the extent of synchronization across tiny cells employing dynamic TDD. So as to deal with the severe inter-cell interference (ICI) downside in dynamic TDD, we more propose a frequency domain interference coordination technique. Finally, system level simulations primarily based on additional realistic system models and assumptions are conducted to evaluate the performance of dynamic TDD systems and the proposed interference coordination technique.
Did you like this research project?
To get this research project Guidelines, Training and Code... Click Here