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In this paper, we present a 3-cell network multiple-input multiple-output (MIMO) architecture with fractional frequency frequency (FFR) and a novel tri-sector frequency partition scheme. One fundamental question to apply the network MIMO technique in such a high interference environment is: how many base stations should be coordinated together to provide sufficient performance? We will demonstrate...
In this paper, we propose three-cell network multiple-input multiple-output (MIMO) schemes to mitigate the inter-cell interference in a multi-cell system with each cell using the same spectrum. One fundamental question to apply the network MIMO technique in such a high interference environment is: how many cell should coordinate together to provide sufficient signal-to-interference plus noise ratio...
Relays are used to forward data from the source to the destination. There are scenarios wherein a relay is the only means for the data to reach the destination. In this paper, we will focus on scenarios wherein one or more relays are used to forward data to the destinations when the destination is already in the coverage area of the source. This latter scenario has been studied under the term cooperative...
The capacity of downlink multi-input multi-output (MIMO) systems is significantly limited by inter-cell co-channel interference (CCI). Improving the performance of cell edge users who suffers strong inter-cell CCI is still a crucial issue. In this paper, coordinated beamforming (CBF) algorithm for multicell multiuser MIMO system is proposed to cope with the presence of intel-cell CCI. In multicell...
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