Fuzzy-Based Uplink Power Control in Forward Broadband Satellite Links

Charilas, DE; Panagopoulos, AD; Chaloulos, KS

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