Two-Hop Interference Channels Impact of Linear Time-Varying Schemes
| dc.contributor.author | Issa, Ibrahim | |
| dc.contributor.author | Fong, Silas L. | |
| dc.contributor.author | Avestimehr, Salman | |
| dc.date.accessioned | 2013-02-27T00:05:09Z | |
| dc.date.available | 2013-02-27T00:05:09Z | |
| dc.date.issued | 2013-02-26 | |
| dc.description.abstract | We 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.identifier.uri | https://hdl.handle.net/1813/31515 | |
| dc.language.iso | en | en_US |
| dc.subject | Multihop wireless networks | en_US |
| dc.subject | Network information theory | en_US |
| dc.subject | Network information theory | en_US |
| dc.title | Two-Hop Interference Channels Impact of Linear Time-Varying Schemes | en_US |
| dc.type | article | en_US |
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