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Interference coordination for the return link of a multibeam satellite system

Ng, Ui Yi, Kyrgiazos, Argyrios and Evans, Barry (2014) Interference coordination for the return link of a multibeam satellite system In: 2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASMS/SPSC 2014), 08-10 Sep 2014, Livorno, Italy.

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Future internet demands are being increased dramatically year by year. Terrestrial systems are unable to satisfy these demands in all geographical areas and thus broadband access by satellite is a key service provision platform. Considering the traffic demands, the raw capacity should approach a Terabit/s by 2020 to meet these demands. The satellite communications network will be a star-based topology, where User Terminals (UT) from multiple beams communicate via central Gateway Earth Stations (GES). The return link from UT to satellite will use DVB-RCS2 Multi-Frequency Time Division Multiple Access (MF-TDMA) transmission scheme in Ka band (30GHz), while the return feeder link from satellite to GES in Q band (40 GHz). Due to generation of large number of narrow user beams, the interference starts becoming a limiting factor in the system's dimensioning. Herein, interference coordination schemes, borrowed from terrestrial cellular systems, are examined in terms of applicability and C/I performance. In addition, an algorithm for dynamic interference coordination is proposed to schedule the transmissions of the users in time-frequency domain of the return link, aiming to improve the C/I. The performance of these schemes and the proposed algorithm is assessed over a 302 user beams satellite system with practical antenna radiation patterns.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Ng, Ui Yi
Date : 23 October 2014
Funders : European Union Seventh Framework Programme
DOI : 10.1109/ASMS-SPSC.2014.6934569
Grant Title : BATS
Uncontrolled Keywords : Interference; Satellites; Base stations; Satellite communication; Conferences; Bandwidth; Heuristic algorithms
Additional Information : Print version published by Curran Associates, Inc. Available at:
Depositing User : Clive Harris
Date Deposited : 13 Mar 2019 14:24
Last Modified : 06 Jul 2019 05:26

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