Capacity analysis and system optimization for the forward link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Rinaldo, Rita; Gaudenzi, R. De

doi:10.1002/sat.789

Cited by 59 publications

(43 citation statements)

References 13 publications

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“…The many-to-one reverse link nature makes its analysis vastly different from the forward link one covered by [4]. When possible, commonalities with the forward link analysis will be exploited but differences will also be highlighted.…”

Section: Introduction and Problem Statementmentioning

confidence: 98%

Capacity analysis and system optimization for the reverse link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Rinaldo

Gaudenzi

2004

Satell Commun Network

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SUMMARYThis paper deals with the system capacity analysis and assessment of the potential advantages provided by the introduction of Adaptive Coding and Modulation (ACM) in the reverse link of multi-beam broadband satellite systems. ACM is intended to increase the system throughput for a given terminal EIRP power by optimizing the individual links physical layer to the current channel conditions. The physical layer adaptation will be driven by the inbound demodulator signal over noise plus interference ratio (SNIR) estimation. A general methodology for ACM physical layer optimization based on the system capacity maximization is also illustrated. A theoretical analysis of ACM systems capacity is performed for both time division multiple access (TDMA) and code division multiple access (CDMA) schemes. As the exact analytical capacity computation results to be very complex while Monte Carlo approach leads to very time consuming simulations, a simplified semi-analytic approach is devised. Numerical results showing the huge improvement in terms of capacity by the ACM adoption are obtained for both the semi-analytic and the Monte Carlo approaches in a realistic study case corresponding to a Ka-band multibeam satellite system. A good match between the two approaches is also demonstrated.

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Section: Introduction and Problem Statementmentioning

confidence: 98%

Capacity analysis and system optimization for the reverse link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Rinaldo

Gaudenzi

2004

Satell Commun Network

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“…In practice, transmission rate variations in the satellite link are mainly caused by atmospheric conditions such as rain events, which are the most common phenomena in Ka-band (20-30 GHz) satellite systems [5,6]. These events can lead to a Ka channel attenuation ranging from few dBs up to more than 20 dBs.…”

Section: Characterization Of Link Bandwidth Variation In the Digital mentioning

confidence: 99%

Cross‐layer packet scheduler for QoS support over Digital Video Broadcasting‐Second Generation broadband satellite systems

Rendon-Morales

Mata‐Díaz

Alins

et al. 2012

Int J Communication

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SUMMARYThis article presents a cross-layer packet scheduler to provide end-to-end QoS guarantees for Digital Video Broadcasting-Second Generation (DVB-S2) broadband satellite systems. The scheduler design is based on a cross-layer mechanism defined between the physical and the network layer. It includes an algorithm to guarantee the required QoS specifications established in the service level agreement. The algorithm calculation depends basically on two parameters: the available bandwidth present in a DVB-S2 satellite link and the QoS requirements of each traffic class defined by the satellite operator. The cross-layer scheduler's operation is demonstrated using the NS-2 simulator tool. The results show that the proposed mechanism maximizes the bandwidth utilization while enforcing the priority level of each service class when an extreme reduction of bandwidth caused by rain events is experienced.

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“…In Reference [11] a methodology is illustrated for deriving ACM systems capacity and assessing the advantage with respect to current DVB-S multimedia systems. Although of general validity, the methodology has been first applied to a study case with uniform traffic distribution.…”

Section: Acm: the Principlesmentioning

confidence: 99%

DVB‐S2 ACM modes for IP and MPEG unicast applications

Rinaldo

Vázquez-Castro

Morello³

2004

Satell Commun Network

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SUMMARYThe DVB-S2 standard (ETSI: EN 302 307. Digital Video Broadcasting (DVB): second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2)) has been conceived for several satellite broadband applications: Television Broadcast Services, Interactive Services including Internet Access by consumers, Professional Applications such as Digital Satellite News Gathering (DSNG) and TV distribution, data trunking. This paper focuses on the profiles supporting interactive type of services, for which Adaptive Coding and Modulation (ACM) has been included in the new generation of the standard. Following the DVB-S2 specifications, a number of modem configurations and tools are made available for implementing ACM in interactive systems. However, the different approaches have important impacts on the design of the system architecture and of the scheduling/resource management algorithms. The aim of the present contribution is providing a first discussion on the critical issues at system and MAC level, which need to be addressed when implementing a DVB-S2 ACM system. A general introduction to ACM is also provided, as well as an illustration of the key elements included in the DVB-S2 standard for supporting physical layer adaptivity.

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Capacity analysis and system optimization for the forward link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Cited by 59 publications

References 13 publications

Capacity analysis and system optimization for the reverse link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Capacity analysis and system optimization for the reverse link of multi‐beam satellite broadband systems exploiting adaptive coding and modulation

Cross‐layer packet scheduler for QoS support over Digital Video Broadcasting‐Second Generation broadband satellite systems

DVB‐S2 ACM modes for IP and MPEG unicast applications

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