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dc.contributor.authorIssa, Ibrahim
dc.contributor.authorFong, Silas L.
dc.contributor.authorAvestimehr, Salman
dc.description.abstractWe consider the two-hop interference channel (IC) with constant channel coefficients, which consists of two source-destination pairs, separated by two relays. We analyze the achievable degrees of freedom (DoF) of such network when relays are restricted to perform scalar amplify-forward (AF) operations, with possibly time-varying coefficients. We show that, somewhat surprisingly, by providing the flexibility of choosing time-varying AF coefficients at the relays, it is possible to achieve 4/3 sum-DoF. We also develop a novel outerbound that matches our achievability, hence characterizing the sum-DoF of two-hop interference channels with time-varying AF relaying strategies.en_US
dc.subjectMultihop wireless networksen_US
dc.subjectNetwork information theoryen_US
dc.subjectNetwork information theoryen_US
dc.titleTwo-Hop Interference Channels Impact of Linear Time-Varying Schemesen_US

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