On Amplify-and-Forward Relaying Over Hyper-Rayleigh Fading Channels
| dc.contributor.author | Alvi, Sajid H. | |
| dc.contributor.author | Wyne, Shurjeel | |
| dc.coverage.issue | 4 | cs |
| dc.coverage.volume | 23 | cs |
| dc.date.accessioned | 2014-12-16T09:35:41Z | |
| dc.date.available | 2014-12-16T09:35:41Z | |
| dc.date.issued | 2014-12 | cs |
| dc.description.abstract | Relayed transmission holds promise for the next generation of wireless communication systems due to the performance gains it can provide over non-cooperative systems. Recently hyper-Rayleigh fading, which represents fading conditions more severe than Rayleigh fading, has received attention in the context of many practical communication scenarios. Though power allocation for Amplify-and-Forward (AF) relaying networks has been studied in the literature, a theoretical analysis of the power allocation problem for hyper-Rayleigh fading channels is a novel contribution of this work. We develop an optimal power allocation (OPA) strategy for a dual-hop AF relaying network in which the relay-destination link experiences hyper-Rayleigh fading. A new closed-form expression for the average signal-to-noise ratio (SNR) at destination is derived and it is shown to provide a new upper-bound on the average SNR at destination, which outperforms a previously proposed upper-bound based on the well-known harmonic-geometric mean inequality. An OPA across the source and relay nodes, subject to a sum-power constraint, is proposed and it is shown to provide measurable performance gains in average SNR and SNR outage at the destination relative to the case of equal power allocation. | en |
| dc.format | text | cs |
| dc.format.extent | 1226-1233 | cs |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Radioengineering. 2014, vol. 23, č. 4, s. 1226-1233. ISSN 1210-2512 | cs |
| dc.identifier.issn | 1210-2512 | |
| dc.identifier.uri | http://hdl.handle.net/11012/36582 | |
| dc.language.iso | en | cs |
| dc.publisher | Společnost pro radioelektronické inženýrství | cs |
| dc.relation.ispartof | Radioengineering | cs |
| dc.relation.uri | http://www.radioeng.cz/fulltexts/2014/14_04_1226_1233.pdf | cs |
| dc.rights | Creative Commons Attribution 3.0 Unported License | en |
| dc.rights.access | openAccess | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject | Relayed communications | en |
| dc.subject | hyper-Rayleigh fading | en |
| dc.subject | amplify-and-forward | en |
| dc.subject | power-allocation | en |
| dc.title | On Amplify-and-Forward Relaying Over Hyper-Rayleigh Fading Channels | en |
| dc.type.driver | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
| eprints.affiliatedInstitution.faculty | Fakulta eletrotechniky a komunikačních technologií | cs |