Fuzzy-Based Uplink Power Control in Forward Broadband Satellite Links

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dc.contributor.author Charilas, DE en
dc.contributor.author Panagopoulos, AD en
dc.contributor.author Chaloulos, KS en
dc.date.accessioned 2014-03-01T11:46:59Z
dc.date.available 2014-03-01T11:46:59Z
dc.date.issued 2012 en
dc.identifier.issn 09296212 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/38053
dc.subject End-to-end satellite link en
dc.subject Fuzzy inference system en
dc.subject Fuzzy logic en
dc.subject Interference en
dc.subject Outage probability en
dc.subject Rain attenuation en
dc.subject Satellite communications en
dc.subject Uplink power control en
dc.title Fuzzy-Based Uplink Power Control in Forward Broadband Satellite Links en
heal.type other en
heal.identifier.primary 10.1007/s11277-012-0539-0 en
heal.identifier.secondary http://dx.doi.org/10.1007/s11277-012-0539-0 en
heal.publicationDate 2012 en
heal.abstract End-to-end performance of broadband satellite links operating at Ku band and above is studied in this paper. The problem of power control in terms of optimal power allocation and maximization of the total carrier-to-interference-and-noise ratio is considered. More specifically, the paper proposes the use of Fuzzy Inference Systems (FIS) to optimize power allocation in a dual-hop (end-to-end) satellite system, considering the general case of dual-polarized satellite links with transparent satellite transponder. The quality of the link is assessed through the FIS based on the predicted values of rain attenuation induced on the corresponding links and the interference-to-noise ratios. According to this estimation, the satellite hub-station increases or reduces the allocated uplink power. The proposed scheme's effectiveness is investigated in terms of carrier-to-noise plus depolarization plus interference ratio and power consumption for 30/20 GHz frequency in the uplink and the downlink respectively. A variety of conditions is considered regarding the rain attenuation values from 0 (no rain) to 30 dB and interference-to-noise ratio from -15 to 15 dB to both links. Finally, the scheme is compared to step-based power control algorithms, showing that it can significantly reduce the total consumed power. © 2012 Springer Science+Business Media, LLC. en
heal.journalName Wireless Personal Communications en
dc.identifier.doi 10.1007/s11277-012-0539-0 en
dc.identifier.spage 1 en
dc.identifier.epage 17 en

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