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It has been shown that in a multi-user multi-cell network, the Multi User Inter Cell Interference Alignment (MUI-CIA) based transmit precoding outperforms the non-alignment based state of the art precoding schemes. The theory of MUICIA is based on the assumption that the partial and stale inter-cell interference (ICI) information is still useful. This ICI is used by the transmitter to design he precoding...
One of the key enablers for 5th Generation (5G) networks is the on-demand overlay of co-channel pico cells on homogeneous macro layer. However, the problem of inter-cell interference (ICI) is very challenging in co-channel heterogeneous deployments. Therefore, we propose a combination of enhanced inter cell interference coordination (eICIC) and coordinated beamforming (CB) as an evolutionary step...
Coordinated multi-point (CoMP) schemes provide an alternative solution to enhanced inter cell interference coordination (eICIC) for the severe interference in downlink heterogeneous networks (HetNets). In particular, CoMP with coordinated beamforming (CB), which requires only channel state information sharing on the backhaul among the base stations (BSs), provides a good tradeoff between performance...
In this work, we investigate the issue of interference coordination in relay-enhanced networks. We focus on Type 1 in-band relays as proposed for LTE-Advanced, where the base station and the relay nodes share the same frequency for the backhaul and relay access link. While using full-buffer traffic for the downstream, we propose a centralized interference coordination algorithm to mitigate interference...
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