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arXiv · 1302.4788

Layered Interference Networks with Delayed CSI: DoF Scaling with Distributed Transmitters

Mohammad Javad Abdoli·A. Salman Avestimehr
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Abstract

The layered interference network is investigated with delayed channel state information (CSI) at all nodes. It is demonstrated how multi-hopping can be utilized to increase the achievable degrees of freedom (DoF). In particular, a multi-phase transmission scheme is proposed for the $K$-user $2K$-hop interference network in order to systematically exploit the layered structure of the network and delayed CSI to achieve DoF values that scale with $K$. This result provides the first example of a network with distributed transmitters and delayed CSI whose DoF scales with the number of users.

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Mohammad Javad Abdoli, A. Salman Avestimehr. 2013-11-04. Layered Interference Networks with Delayed CSI: DoF Scaling with Distributed Transmitters. https://arxiv.org/abs/1302.4788

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