| dc.contributor.author | Sala Álvarez, José |
| dc.contributor.author | Rey Micolau, Francesc |
| dc.contributor.author | Villares Piera, Nemesio Javier |
| dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
| dc.date.accessioned | 2012-03-22T19:25:00Z |
| dc.date.available | 2012-03-22T19:25:00Z |
| dc.date.created | 2012-02 |
| dc.date.issued | 2012-02 |
| dc.identifier.citation | Sala, J.; Rey, F.; Villares, Javier. Asymptotically optimum energy profile for successive interference cancellation in DS-CDMA under a power unbalance constraint. "IEEE communications letters", Febrer 2012, vol. 16, núm. 2, p. 172-175. |
| dc.identifier.issn | 1089-7798 |
| dc.identifier.uri | http://hdl.handle.net/2117/15654 |
| dc.description | © 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| dc.description.abstract | A new Ordinary Differential Equation (ODE) governing the SNIR evolution of a Successive Interference Canceller (SIC) for DS-CDMA is derived when the number of users tends to infinity and all users share the same channel encoder. Using Variational Calculus, this ODE is applied to obtaining the energy profile that maximizes the average spectral efficiency when a constraint on the power unbalance (maximum power to minimum power ratio) of received users is enforced. The conditions for extremality of the optimum energy profile are established in terms of the common encoder's Packet Error Rate (PER) function. |
| dc.format.extent | 4 p. |
| dc.language.iso | eng |
| dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals |
| dc.subject.lcsh | Differential equations |
| dc.subject.lcsh | Sound --Recording and reproducing --Digital techniques. |
| dc.subject.other | successive interference cancellation
power unbalance
differential equation
variational calculus
packet error rate
CDMA
error propagation |
| dc.title | Asymptotically optimum energy profile for successive interference cancellation in DS-CDMA under a power unbalance constraint |
| dc.type | Article |
| dc.subject.lemac | Equacions diferencials parcials |
| dc.subject.lemac | So -- Enregistrament i reproducció |
| dc.contributor.group | Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
| dc.identifier.doi | 10.1109/LCOMM.2011.121311.111964 |
| dc.description.peerreviewed | Peer Reviewed |
| dc.relation.publisherversion | https://ieeexplore.ieee.org/document/6109196 |
| dc.rights.access | Open Access |
| local.identifier.drac | 9804040 |
| dc.description.version | Postprint (author's final draft) |
| local.citation.author | Sala, J.; Rey, F.; Villares, Javier |
| local.citation.publicationName | IEEE communications letters |
| local.citation.volume | 16 |
| local.citation.number | 2 |
| local.citation.startingPage | 172 |
| local.citation.endingPage | 175 |
