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Precoding in multigateway multibeam satellite systems
dc.contributor.author | Joroughi, Vahid |
dc.contributor.author | Vazquez, Miguel Angel |
dc.contributor.author | Pérez Neira, Ana Isabel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2017-03-24T08:35:38Z |
dc.date.available | 2017-03-24T08:35:38Z |
dc.date.issued | 2016-07 |
dc.identifier.citation | Joroughi, V., Vazquez, M., Perez, A. Precoding in multigateway multibeam satellite systems. "IEEE transactions on wireless communications", Juliol 2016, vol. 15, núm. 7, p. 4944-4956. |
dc.identifier.issn | 1536-1276 |
dc.identifier.uri | http://hdl.handle.net/2117/102841 |
dc.description.abstract | This paper considers a multigateway multibeam satellite system with multiple feeds per beam. In these systems, each gateway serves a set of beams (cluster) so that the overall data traffic is generated at different geographical areas. Full frequency reuse among beams is considered so that interference mitigation techniques are mandatory. Precisely, this paper aims at designing the precoding scheme which, in contrast to single gateway schemes, entails two main challenges. First, the precoding matrix shall be separated into feed groups assigned to each gateway. Second, complete channel state information (CSI) is required at each gateway, leading to a large communication overhead. In order to solve these problems, a design based on a regularized singular value block decomposition of the channel matrix is presented so that both intercluster (i.e., beams of different clusters) and intracluster (i.e., beams of the same cluster) interference is minimized. In addition, different gateway cooperative schemes are analyzed in order to keep the inter-gateway communication low. Furthermore, the impact of the feeder link interference (i.e., interference between different feeder links) is analyzed and it is shown both numerically and analytically that the system performance is reduced severely whenever this interference occurs even though precoding reverts this additional interference. Finally, multicast transmission is also considered. Numerical simulations are shown considering the latest fixed broadband communication standard DVB-S2X so that the quantized feedback effect is evaluated. The proposed precoding technique results to achieve a performance close to the single gateway operation even when the cooperation among gateways is low. |
dc.format.extent | 13 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Radiodifusió per ràdio |
dc.subject.lcsh | Artificial satellites in telecommunication |
dc.subject.lcsh | Broadband communication systems |
dc.subject.other | MIMO precoding |
dc.subject.other | Multibeam satellite systems |
dc.subject.other | Multigateway transmission |
dc.title | Precoding in multigateway multibeam satellite systems |
dc.type | Article |
dc.subject.lemac | Satèl·lits artificials en telecomunicació |
dc.subject.lemac | Telecomunicació de banda ampla, Sistemes de |
dc.identifier.doi | 10.1109/TWC.2016.2550023 |
dc.relation.publisherversion | http://ieeexplore.ieee.org/document/7448464/ |
dc.rights.access | Open Access |
local.identifier.drac | 19809853 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Joroughi, V.; Vazquez, M.; Perez, A. |
local.citation.publicationName | IEEE transactions on wireless communications |
local.citation.volume | 15 |
local.citation.number | 7 |
local.citation.startingPage | 4944 |
local.citation.endingPage | 4956 |
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