Resource Management in Satellite Networks part 6 pps

... Chapter 1: INTRODUCTION TO SATELLITE COMMUNICATIONS 29 Fig. 1.9: Examples for the use of satellite links in telecommunication networks. interworking, to define a new network architecture and to include ... Multi-spot-beam satellite antenna • Bent-pipe satellite • Terrestrial gateway containing the scheduler (MAC layer) • Direct return link via satellite for channel quality measur...

Ngày tải lên: 05/07/2014, 19:20

... of multiple links corresponding to all the users that have activated the service in each (multicast) group. The role of the packet scheduler in S-MBMS is not that dominant in determining the system ... such information were available, it would have to be exploited in a complex way due to the point-to-multipoint nature of the services, i.e., the decisions regarding the scheduling of a...

Ngày tải lên: 05/07/2014, 19:20

... LEO satellites’ coverage area changes continuously over time, in order to maintain connectivity, end-users must switch from beam to beam and from satellite to satellite, resulting in frequent intra- ... processing capabilities. Fig. 6. 1: A general protocol stack for the main elements of a satellite network. Fig. 6. 2: The main RRM entities. Chapter 6: CALL ADMISSION CONTROL 179...

Ngày tải lên: 05/07/2014, 19:20

... presented in Figure 6. 9 and the ones in Figure 6. 8. It is apparent that the schemes presented in Figure 6. 9 outperform those in Figure 6. 8. The mechanism behind the schemes that were presented in [ 56] ... Architecture for IP Satellite Networks with Dynamic Resource Management and DiffServ QoS Provision”, International Journal of Satellite Communications and Network...

Ngày tải lên: 05/07/2014, 19:20

... another, either by incorporating Inter -Satellite Links (ISLs) or a ground-based hub station in each footprint. All these issues contribute in making DBA an essential approach for providing the proper ... downlink spot-beams, the channel allocation will have to take into account also this aspect in order to maintain the overall QoS; this is particularly important in satellite- based...

Ngày tải lên: 05/07/2014, 19:20

... the inter-working between the Satellite- Independent (SI) and the Satellite- Dependent (SD) architectural components at the SI-SAP (Satellite- Independent - Service Access Point), by taking into ... the minimum SD bandwidth provision needed to track the SI QoS thresholds. Chapter 8: RESOURCE MANAGEMENT AND NETWORK LAYER 265 Redundant codes in hybrid networks Hybrid networks consi...

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... specifies a satellite terminal known as a Satellite interactive Terminal (ST) or Return Channel Satellite Terminal (RCST) that supports a two-way DVB satellite system. The return link in DVB-RCS ... give the STs all the information needed for receiving and transmitting in the system. This includes, in addition to the tables already existing in the DVB-S system, tables informing...

Ngày tải lên: 05/07/2014, 19:20

... 54 HSDPA, 16, 108, 138, 139, 141, 144, 148 Hybrid satellite networks, 265 Erasure codes, 265 QoS, 266 WiFi networks, 267 I In nitesimal perturbation analysis, 99, 2 16, 257 IntServ, 36, 77, 107, ... efficiency. In the forward link, the introduction of spreading requires the design of a new DVB-S2 receiver. In the return link, each terminal could in principle implement direct spre...

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... the two following parts are conceived according to the ETSI SES/BSM protocol stack, thus distinguishing cross-layer issues involving satellite- dependent layers (Part II, Chapters 5, 6 and 7) from ... decided in September 2005 to organize the results obtained in a book. With the end of SatNEx activities in March 20 06, the work of this book continued in SatNEx II (IST-027393, 20 0...

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... entitled “Integrated Space/Terrestrial Mobile Networks . He also contributed to the Resource Management activity of the Working Group 3000 within the RACE Project, called Satellite Integration in the ... (PRMA) protocols suitable for supporting voice and data transmissions in low earth orbit mobile satellite systems. In 1999 he joined the Information Engineering Department of th...

Ngày tải lên: 05/07/2014, 19:20