Name
Title | ||
|---|---|---|
Double-RIS Communication with DF Relaying for Coverage Extension: Is One Relay Enough? |
Abstract | ||
|---|---|---|
In this work, we investigate the decode-and-forward (DF) relay-aided double reconfigurable intelligent surface (RIS)-assisted networks, where the signal is subject to reflections from two RISs before reaching the destination. Different relay-aided network architectures are considered for maximum achievable rate under a total power constraint. Phase optimization for the double-RIS channels is tackled via the alternating optimization and majorization-minimization (MM) schemes. Moreover, closed-form solutions are obtained for each case. Numerical results indicate that the deployment of two relays, one near each RIS, achieves higher rates at low and medium signal-to-noise ratios (SNRs) compared to placing a single relay between the two RISs; while at high SNRs, the latter approach achieves higher rates only if the inter-relay interference for the former case is considerably high. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/ICC45855.2022.9839181 | ICC 2022 - IEEE International Conference on Communications |
Keywords | DocType | ISSN |
Reconfigurable Intelligent surface,decode-and-forward,multihop relaying | Conference | 1550-3607 |
ISBN | Citations | PageRank |
978-1-5386-8348-4 | 0 | 0.34 |
References | Authors | |
12 | 6 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Zaid Abdullah | 1 | 0 | 0.68 |
| Steven Kisseleff | 2 | 1 | 1.36 |
| Konstantinos Ntontin | 3 | 0 | 0.68 |
| Wallace A. Martins | 4 | 1 | 4.07 |
| Symeon Chatzinotas | 5 | 1849 | 192.76 |
| Björn E. Ottersten | 6 | 6418 | 575.28 |