Development and validation of time‐series synthesizers of rain attenuation for Ka‐band and <i>Q/V</i>‐band satellite communication systems

Lemorton, J.; Castanet, Laurent; Lacoste, F.; Riva, C.; Matricciani, Emilio; Fiebig, U.-C.; Kamp, Max van de; Martellucci, A.

doi:10.1002/sat.883

Cited by 35 publications

(20 citation statements)

References 9 publications

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“…This allows each SS to use extra resources only when needed. Therefore, in the simulations that follow, the stochastic-dynamic model first proposed by Maseng and Bakken [32] is adopted to generate lognormal rain attenuation time series as in [33]. The synthesis procedure of time series is based on the fact that rain attenuation is well approximated by a first-order stochastic differential equation [32] and is currently devised into a draft new recommendation within the ITU-R.…”

Section: Dynamic Code Assignmentmentioning

confidence: 99%

Controlling Intercell Interference in CDMA-based Fixed Wireless Networks Through Multirate Techniques

Arapoglou

Papaioannou

Panagopoulos

et al. 2009

Wireless Pers Commun

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A number of research works have suggested a possible capacity advantage when employing direct sequence-code division multiple access (DS-CDMA) instead of the more common time division multiple access option for fixed broadband wireless access networks operating at millimeter-waves. The choice of this multiple access scheme, which, up to now, has not been foreseen by recent WiMax (worldwide interoperability for microwave access) standards, exhibits an improved performance in terms of cochannel interference in the upstream, even though it experiences higher interference in the downstream. The present paper focuses on enhancing the bottleneck downstream performance of fixed wireless networks by proposing a methodology for controlling the signal-to-interference ratio throughout the cell, so that all subscribers meet the given interference quality-of-service specifications. This is accomplished by exploiting the properties of a combination of multirate CDMA techniques. The paper describes a simple policy for code assignment, which is proved to be optimal, incorporating the effect of rain fading over multiple paths. The performance of the algorithm is tested against single code DS-CDMA both under long term channel statistics (static code assignment) and under dynamic channel effects (dynamic code assignment). The first test verifies the compliance of all sector subscribers with more demanding SIR specifications, while the second yields a significant improvement in terms of resource utilization.

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Section: Dynamic Code Assignmentmentioning

confidence: 99%

Controlling Intercell Interference in CDMA-based Fixed Wireless Networks Through Multirate Techniques

Arapoglou

Papaioannou

Panagopoulos

et al. 2009

Wireless Pers Commun

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“…Since rain attenuation is a time varying process, in order to design a communication system robust to rain attenuation, it is necessary to model the dynamic behaviour of rain. Several time series models to synthesize rain attenuation samples with temporal properties have been proposed [17]. The stochastic model of Maseng−Bakken [18], which was adopted as a new Recommendation by the Study Group 3 of the ITU-R in 2009 [19], has been the most popular one.…”

Section: Satellite Feeder Link Channel Modelmentioning

confidence: 99%

Multiple Gateway Transmit Diversity in Q/V Band Feeder Links

Gharanjik

Shankar

Arapoglou³

et al. 2015

IEEE Trans. Commun.

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Abstract-Design of high bandwidth and reliable feeder links is central towards provisioning new services on the user link of a multibeam satellite communication (SatCom) system. Towards this, utilization of the Q/V band and an exploitation of multiple gateways (GW) as a transmit diversity measure for overcoming severe propagation effects are being considered. In this context, this contribution deals with the design of a feeder link comprising N + P GWs (N active and P redundant GWs). Towards provisioning the desired availability, a novel switching scheme is analysed and practical aspects such as prediction based switching and switching rate are discussed. Unlike most relevant works, a dynamic rain attenuation model is used to derive analytically average outage probability in the fundamental 1 + 1 gateway case. Building on this result, an analysis for the N + P scenario leading to a quantification of the end−to−end performance is provided. This analysis aids system sizing by illustrating the interplay between the number of active and redundant gateways on the chosen metrics : average outage and average switching rate.

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“…Nevertheless, it must be kept in mind that this uniform ACM scheme over the whole area is also a consequence of a simplistic assumption concerning the channel propagation modelling, in which no spatial variability is taken into account. Only a temporal variability is modeled using the Carrié's enhancement of Lacoste's CNES/ONERA rain fading time series stochastic generator based on Maseng-Bakken model [31,[34][35][36][37].…”

Section: Eai Endorsed Transactions On Mobile Communications and Applimentioning

confidence: 99%

Hybrid Satellite - Wireless Sensor Networks Architecture for Telemedicine Applications in the Context of Emergency Satellite Communications in Ku/Ka/Q/V Bands

Kacimi¹,

Pech²

2014

ICST Trans Mobile Comm Appl

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Thanks to the facilities offered by telecommunications, telemedicine today allows physicians and clinicians to access, monitor and diagnose patients remotely. Telemedicine includes several applications such as remote monitoring of chronically ill patients, monitoring people in their everyday lives to provide early detection and intervention for various types of diseases, computer-assisted physical rehabilitation in ambulatory settings, and assisted living for the elderly at home, as well as remote monitoring of injured people in a postdisaster situation. These new applications require a reliable, wireless communication link between the devices implanted in the patient's skin and a clinician. In this article, this issue is discussed and a list of performance criteria for the different communication links used are addressed, especially focusing on the satellite link. Then an adaptive air interface which is designed to meet the performance constraints of bidirectional satellite communication links in an emergency situation in Ku/Ka/Q/V bands where when strong channel impairments occur is described and analysed.

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Development and validation of time‐series synthesizers of rain attenuation for Ka‐band and Q/V‐band satellite communication systems

Cited by 35 publications

References 9 publications

Controlling Intercell Interference in CDMA-based Fixed Wireless Networks Through Multirate Techniques

Controlling Intercell Interference in CDMA-based Fixed Wireless Networks Through Multirate Techniques

Multiple Gateway Transmit Diversity in Q/V Band Feeder Links

Hybrid Satellite - Wireless Sensor Networks Architecture for Telemedicine Applications in the Context of Emergency Satellite Communications in Ku/Ka/Q/V Bands

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