Cloud-Based Topological Interference Management: A Case with No Cooperative Transmission Gain

Aly El Gamal1

  • 1Purdue University

Details

Category

Technical Session: Poster

Theme

Signal Processing for Wireless Communications

Sessions

16:15 - 17:45 | Tue 5 Jul | Salisbury A | S7

Cooperative cellular networks with backhaul constraints

Abstract

We study the problem of managing interference in linear networks, with backhaul constraints that admit centralized allocation of messages to transmitters through the cloud. Our setting is that of a generic channel, where no channel state information is available at the transmitters. Knowing only the network topology, we characterize the optimal decisions for assigning messages to transmitters, given that each receiver is interested in one message that can be available at N transmitters. We show that using linear cooperation schemes, the per user degrees of freedom does not increase as we increase N beyond unity. Hence, we conclude for the considered problem that cooperative transmission does not increase the degrees of freedom.

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