An inexpensive rain fade countermeasure technique for DA-TDMA satellite systems

Celandroni, Nedo; Potortì, Francesco; Rizzo, Santino

doi:10.1109/glocom.1996.587581

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…In [15], the satellite channel is modeled using a semi-Markov chain with two states and the appropriate set of FEC/ source codes is selected to dynamically compensate for fading variations. In [20], the FMT used mitigates the uplink attenuation using ULPC and the total-uplink plus downlink-attenuation by reducing the bit and the code rate. Specifically, the coordinating master station estimates its downlink attenuation using a beacon receiver and its total attenuation using a narrowband carrier envelope estimator.…”

Section: Physical Layer Analysismentioning

confidence: 99%

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Dynamic resource allocation for DVB‐RCS networks

Petraki

Αναστασόπουλος

Cottis

2008

Satell Commun Network

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SUMMARYTo provide high-speed multimedia services using the digital video broadcasting-return channel satellite (DVB-RCS) standard, it is imperative to efficiently assign timeslots according to user demands and dynamically take into account the variations of the propagation conditions. In satellite networks operating above 10 GHz, rain fading constitutes the dominant factor deteriorating the quality of service. In this paper, a novel two-phase resource allocation scheme for a DVB-RCS compliant satellite network is proposed. The scheme operates in two phases, the resource calculation and the resource assignment. In the resource calculation phase, based on a dynamic channel model, an efficient algorithm is presented to determine the superframe design that maximizes system throughput. In the resource assignment phase, a novel Hybrid Bin-packing algorithm is introduced maximizing the utilization of the multi-frequency time division multiple access frame. The proposed algorithm has been compared with existing schemes exhibiting significantly better results with regard to overall system throughput.

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Section: Physical Layer Analysismentioning

confidence: 99%

“…The load factor is 20, i.e. the traffic load of the terminals in terms of timeslots is uniformly distributed over the interval [0,20].…”

Section: Resource Allocation Phasementioning

confidence: 99%

Dynamic resource allocation for DVB‐RCS networks

Petraki

Αναστασόπουλος

Cottis

2008

Satell Commun Network

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“…Association of an up-link power control feature with the bit and coding rate variation gives the system an interesting ability to cope with fade conditions [3][4][5][6]8]. These studies are of great significance as an adaptation of such modelling to the case of MF-TDMA for DVB-RCS is actually essential.…”

Section: Introductionmentioning

confidence: 99%

Integration of Fade Mitigation within centrally managed MF-TDMA/DVB-RCS networks

Noussi

Grémont

Filip

2009

Space Communications

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This paper addresses the integration of a Fade Mitigation Technique (FMT) within a centrally managed MF-TDMA satellite network in the context of guaranteed QoS delivery. Burst Length Control (BLC) is introduced as a suitable FMT and the methodology of its design and implementation within the existing DVB-RCS standard is described and simulated. The proposed technique provides compensation for rain attenuation at the expense of capacity utilisation. Within any fixed partition of the MF-TDMA space, by considering the space-time properties of rain attenuation, suitable geographical multiplexing of rainattenuated and non-attenuated links allows the optimisation of the channel capacity utilisation while still exploiting the statistical multiplexing of the sources on the return channels.

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Delay analysis for interlan traffic using two suitable TDMA satellite access schemes

Celandroni

Ferro

Potortì

et al. 1997

Int. J. Satell. Commun.

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Two demand assignment time division multiple access (TDMA) satellite access schemes that are suitable for providing flexible interconnections of local area networks are compared by means of two simulations; Fifo Ordered Demand Assignment/Information Bit Energy Adaptive (FODA/IBEA) and Combined Fixed Reservation Assignment (CFRA). A unique simulation tool was used, a meshed network of very small aperture terminals (VSATs) under the control of a master station was considered and similar networking conditions were applied to both access schemes. The generated traffic had two components with different level of burstiness; bulk traffic and interactive traffic. The performance evaluated is the delay for each traffic component. We show that CFRA is best when connecting clusters of only a few stations and even individual stations exchanging light traffic. On the other hand, FODA/IBEA is better suited to interconnect networks, or within networks with many hosts, where heavy traffic is more likely. © 1997 John Wiley & Sons, Ltd.

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An inexpensive rain fade countermeasure technique for DA-TDMA satellite systems

Cited by 4 publications

References 10 publications

Dynamic resource allocation for DVB‐RCS networks

Dynamic resource allocation for DVB‐RCS networks

Integration of Fade Mitigation within centrally managed MF-TDMA/DVB-RCS networks

Delay analysis for interlan traffic using two suitable TDMA satellite access schemes

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