Resource Management in Satellite Networks part 31 pptx
Resource Management in Satellite Networks part 31 pptx
... start threshold (ssthresh). In particular, each sending end-system probes the network congestion by gradually increasing the window of transmitted segments (outstanding in the network) until the ... correctly in wired (congested) networks, suffer from a certain number of factors when used over satellite links [1]. In particular, the high latency, the large Bandwidth-Delay Product (B...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 3 pptx
... Board IBR Information Bit Rate ICMP Internet Control Message Protocol IEEE Institute of Electrical and Electronics Engineers IETF Internet Engineering Task Force IFR Increasing Failure Rate IM Inter-Modulation IMT ... Internet Protocol over Satellite ISDN Integrated Services Digital Network ISI Integral Satcom Initiative ISLs Inter -Satellite Links ISN Interactive Satellite Network ISO/O...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 11 pptx
... for managing inter-domain communications with neighbor QoS brokers, so that QoS-enabled transport services are implemented in a coordinated way across various domains. Since IntServ requires resource ... distribution and satellite content delivery to mobile terminals (either broadcast or multicast) are interesting working areas. Clearly, reception is mainly possible when the satellite...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 13 pptx
... combining, etc., are discussed in the scenario of satellite systems. What is interesting in our context is the overview of cross-layer design methods employed in satellite systems, in particular ... transmission rate being used at the link layer. Moreover, the network layer can gain by looking both up and down the stack in order to obtain route diversity and multilink routing, w...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 35 potx
... 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 spreading within the ... 46 S S-UMTS, 15, 58, 108, 121, 131, 152, 325 Satellite constellations/orbits, 4, 10, 275 Satellite digital multimedia broadcasting, 325 Satellite IP networks, 31, 69, 76, 109, 248...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 1 doc
... (Chapter 4), 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 ... translated or copied in whole or in part without the bidden. The use in this publication of trade names, trademarks, service marks and similar terms, Resource Management in Sa...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 2 pot
... 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
Resource Management in Satellite Networks part 4 doc
... (from Earth to satellite to Earth and back) since layer 2 control functions are in the Earth station. In case of GEO regenerating satellites, RTD varies in the range 239-280 ms. In particular, RTD ... system, but the greater the difficulty in acquiring and maintaining synchronism. Time access to the satellite link can be managed either in centralized or in distributed mode. Ce...
Ngày tải lên: 05/07/2014, 19:20
Resource Management in Satellite Networks part 5 pdf
... time-frequency resources (according to an MF-TDMA air interface) to the requesting terminals. The Return Channel Satellite Terminal (RCST) transmission capacity is constrained. According to the standardization, ... Reed-Solomon coding, convolutional interleaver, inner convolutional encoding, puncturing), base-band shaping of impulses, and QPSK modulation. The resulting DVB-S transmissions v...
Ngày tải lên: 05/07/2014, 19:20
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