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The need for 5G to adapt the radio access network to the spatial and temporal traffic variations makes the paradigm of moving networks essential. Dynamic network topology and moving cells through vehicular nomadic nodes (NN) will provide coverage extension and capacity improvement on demand as well as achieve reduced capital and operational expenditure when compared to fixed node deployment, such...
This paper considers a 4G multicell system where base-stations and relays employ typical or large size antenna arrays with beamforming capabilities, as well as in-band full duplex relays. The achieved signal to interference ratio (SIR) gain in excess of the maximum required for such systems can be exploited either for reducing the major problem of full duplex self-interference, or for reducing the...
In-band full-duplex operation has recently attracted a lot of attention as a possible solution for increasing the spectral efficiency of wireless communication systems. This paper considers a 4G multicell system where base-stations and relays employ beamforming, while relays also operate in in-band full duplex mode. In the context of LTE, the excess SIR gain that is achieved with the help of typical...
Orthogonal frequency division multiple access (OFDMA) techniques are investigated in this paper. Five subchannel allocation algorithms are analysed and their performance in a multicellular environment is evaluated with simulations. Four schemes of lower complexity, suitable for the early deployment of wireless systems, are compared with a more computationally demanding scheme with respect to their...
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