Study on feasibility of SATCOM for railway communication

Recommendations

Info

Final Report 6. SATCOM MARKET SURVEY 6.1 INTRODUCTION TO SATCOM SOLUTIONS Nowadays, there are several SATCOM solutions providing service (voice, data, TV, M2M, backhaul of other services like 2G/3G, etc) to different types of applications and markets (media, transport, cargo, military, energy, etc). And depending on the final application or market, different SATCOM solutions fit in better than others, according, for example, to the data rate provided, the possibility of using handhelds, mobility, type of antenna required, etc, etc. With the aim to provide a broad view of the different SATCOM systems and their adaptability to the railway domain, the market survey takes into account several solutions with different values regarding key architectural aspects/parameters of satellite communications. These ―key architectural aspects‖ that characterise the SATCOM solution are: Satellite orbit. This aspect determines, among other factors: the propagation delay, the use of some types of terminals (e.g. like handhelds) and has an impact on the complexity of solutions—not only for the space segment, but also ground and user segments, since the satellite orbit determines, for example, if certain types of antennas (directive, omnidirectional) can or cannot be enabled. Frequency band. This is an important system parameter, since final features of the solution, such as the bandwidth available or atmospheric signal degradation, depends directly on the frequency band selected. In this sense, for example, higher frequency bands give access to broader bandwidths. However, they are also more susceptible to signal degradation due to rain fade (the absorption of radio signals by atmospheric rain, snow or ice). Figure 17 summarises SATCOM frequency bands and their main capabilities. 1 2 4 8 12 18 26 40 GHz L S C X Ku K Ka Narrowband Lower Throughput Larger directive antenna size Broadband Higher Throughput Smaller directive antenna size Less vulnerable to rain fade Handhelds (L/S band) More vulnerable to rain fade Handhelds not allowed Figure 17: SATCOM frequency bands and main capabilities Signal waveform / Air interface. This is an essential aspect of the system‘s performance, since the modulation, codification and the different features implemented within the satellite signal are key parameters to counteract fast fading of the railway channel caused by the existence of catenaries, power arches, shadowing, etc. Doc.Nº: SRAIL-FNR-010-IND Edit./Rev.: 1/1 Date: 16/02/2017 Page 64 of 285
Final Report 6.2 SURVEY OF SATCOM SOLUTIONS AND TECHNOLOGIES Since the FRMCS expects to start new communications systems deployments around 2023 and with a lifetime cycle of at least 15 years, most of the current solutions should be discarded. However, some of the solutions existing nowadays are also going to be described and analysed as future options for railways since current systems are expected to have continuity along time with new satellites/equipments replacements and even with technology improvements. Figure 18 shows most relevant current, underway, planned and even one theoretical 7 SATCOM solutions, differentiated by orbit (LEO, MEO and GEO) and frequency band (from L-band to Ka-band). Frequency Band Ka-band K-band Ku-band IRIDIUM NEXT O3b GEO / Ka-band (Commercial solutions) Inmarsat 5 (GX) GOVSAT-1 (military/gov. reserved) Smart LNB (Eutelsat) Theoretical Planned X-band GOVSAT-1 (military/gov. reserved) Underway Current solution C-band MEO / C-band (proposal for study) GEO / C-band (Commercial solutions) S-band ICO Eutelsat W2A L-band Globalstar IRIS FOC IRIDIUM Inmarsat 6 (ICE) IRIDIUM NEXT Inmarsat 4 (BGAN) Thuraya LEO MEO GEO Orbit Figure 18: Current, mid and long-term SATCOM systems solutions It can be observed at Figure 18 that GEO is the orbit most used for SATCOM systems. This is probably due to the fact that GEO satellites offer good coverage with a solution not as complex as LEO and MEO orbits. Actually, a SATCOM solution based on GEO satellites is capable to provide worldwide coverage (except for pole regions) with a space segment of only 3 satellites. Ground segment is also simpler since GEO satellites remain in a fixed position from Earth point of view, making possible this way to simplify Gateways and their pointing mechanisms to satellites. 7 The theoretical solution is based on the MEO/C-band solution proposed in the Satcom4Rail project [RD-02],within the scope of ESA Artes 1 program. Doc.Nº: SRAIL-FNR-010-IND Edit./Rev.: 1/1 Date: 16/02/2017 Page 65 of 285
Page 1 and 2:
Study on feasibili
Page 3 and 4:
Final Report RECORD OF EDITIONS AND
Page 5 and 6:
Final Report TABLE OF CONTENTS Chap
Page 7 and 8:
Final Report TABLE OF CONTENTS Chap
Page 9 and 10:
Final Report FIGURES INDEX Descript
Page 11 and 12:
Final Report Figure 64: Certificati
Page 13 and 14: Final Report TABLES INDEX Descripti
Page 15 and 16: Final Report ACRONYMS ACM ATM BGAN
Page 17 and 18: Final Report VLR Visitor Location R
Page 19 and 20: Final Report In order to successful
Page 21 and 22: Final Report Business Communication
Page 23 and 24: Final Report Figure 2: Railway comm
Page 25 and 26: Final Report CRT-NONT-2 CRT-NONT-3
Page 27 and 28: Final Report 7 8 9 10 GEO / C-band
Page 29 and 30: Final Report 1.5.1 Cost Benefit Ana
Page 31 and 32: Final Report or GEO/C-band, as well
Page 33 and 34: Final Report - Some of the other sy
Page 35 and 36: Final Report 2. INTRODUCTION 2.1 DO
Page 37 and 38: Final Report 2.4 STUDY METHODOLOGY
Page 39 and 40: Final Report 2.5 DOCUMENT STRUCTURE
Page 41 and 42: Final Report RD-23 D020 ANTARES Com
Page 43 and 44: Final Report Latency Bandwidth 25 2
Page 45 and 46: Final Report Two-way communication
Page 47 and 48: Final Report Table 8: Satellite con
Page 49 and 50: Final Report Star topology is the m
Page 51 and 52: Final Report Satcom System (Railway
Page 53 and 54: Final Report Parameter Definition Q
Page 55 and 56: Final Report Parameter Types of ter
Page 57 and 58: Final Report Services & Application
Page 59 and 60: Final Report Parameter Description
Page 61 and 62: Final Report 5. IDENTIFICATION OF C
Page 63: Final Report Non-technical and non-
Page 67 and 68: Final Report Maritime Transp
Page 69 and 70: Final Report 6.2.1.2.2 Ground segme
Page 71 and 72: Final Report Figure 20: Globalstar
Page 73 and 74: Final Report packet and circuit swi
Page 75 and 76: Final Report Handovers Given that t
Page 77 and 78: Final Report Routing O3b does not u
Page 79 and 80: Final Report Thuraya‘s satellites
Page 81 and 82: Final Report generation of more adv
Page 83 and 84: Final Report Figure 29: IS-33e Epic
Page 85 and 86: Final Report Figure 30: LuxGovSat s
Page 87 and 88: Final Report o Enviromental monitor
Page 89 and 90: Final Report since it is able to op
Page 91 and 92: Final Report Figure 34:Inmarsat 5 s
Page 93 and 94: Final Report 6.2.13.2.4 Services GX
Page 95 and 96: Final Report G/T), which allow the
Page 97 and 98: Final Report DAMA Random Access (RA
Page 99 and 100: Final Report In fact, some of these
Page 101 and 102: Final Report Main advantages of OFD
Page 103 and 104: Final Report (E-SSA) scheme. On the
Page 105 and 106: Final Report For each group of stak
Page 107 and 108: Final Report Figure 43: SOTM & Trai
Page 109 and 110: Final Report Other responses (not s
Page 111 and 112: Final Report SATCOM provides rai
Page 113 and 114: Final Report SOTM suitability for t
Page 115 and 116:
Final Report Features and functiona
Page 117 and 118:
Final Report Support for handheld t
Page 119 and 120:
Final Report Function/service Main
Page 121 and 122:
Final Report Concerns regarding SAT
Page 123 and 124:
Final Report Economic feasibility o
Page 125 and 126:
Final Report 8. PRE-SELECTION OF SA
Page 127 and 128:
Final Report 8 9 10 GEO / X-band (D
Page 129 and 130:
Final Report Criterion ID CRT-TECH-
Page 131 and 132:
Final Report Criterion ID CRT-TECH-
Page 133 and 134:
Final Report 7 - GEO / C-band 8 - G
Page 135 and 136:
Final Report a justification regard
Page 137 and 138:
Final Report Criterion ID Criterion
Page 139 and 140:
Final Report Stakeholders Finance
Page 141 and 142:
Final Report other one-time invest
Page 143 and 144:
Final Report 9.3.2.4 Cost Model The
Page 145 and 146:
Final Report SATCOM CAPEX Model Cos
Page 147 and 148:
Cell Range (km) #Base Stations Fina
Page 149 and 150:
Trips in Millions 2020 2021 2022 20
Page 151 and 152:
M€ M€ Final Report 5.000 4.000
Page 153 and 154:
Final Report Inmarsat 4/6 1.997 2.8
Page 155 and 156:
M€ Final Report Regarding break-e
Page 157 and 158:
Final Report Broadband is used as
Page 159 and 160:
Final Report Sensitivity Ranking LT
Page 161 and 162:
Final Report Main Cost Sensitivitie
Page 163 and 164:
Final Report CRT-NONT-3 CRT-NONT-4
Page 165 and 166:
Final Report 9.3.5.2 Vertical asses
Page 167 and 168:
Final Report Criterion ID 1 2 3 4 5
Page 169 and 170:
Final Report northern part of Europ
Page 171 and 172:
Final Report 11.1.2 Findings regard
Page 173 and 174:
Final Report - All the solutions ar
Page 175 and 176:
Final Report TECHNICAL SCORE (ETCS
Page 177 and 178:
Final Report system, since they wil
Page 179 and 180:
Final Report the deployment of terr
Page 181 and 182:
Final Report products and services
Page 183 and 184:
Final Report to this weakness thank
Page 185 and 186:
Final Report A. CRITERIA DEFINITION
Page 187 and 188:
Final Report EEIG 96S126 / 02S1266
Page 189 and 190:
Final Report To get high quality vo
Page 191 and 192:
Final Report For the future railway
Page 193 and 194:
Final Report Therefore, and as a re
Page 195 and 196:
Final Report CRT-TECH-18 The propos
Page 197 and 198:
Final Report The NGN architecture c
Page 199 and 200:
Final Report IP Network Access Netw
Page 201 and 202:
Final Report Survey on operationa
Page 203 and 204:
Final Report RATIONALE Costs are a
Page 205 and 206:
Final Report B. SURVEY QUESTIONS Th
Page 207 and 208:
Final Report 4. (SATCOM) What do yo
Page 209 and 210:
Final Report The following question
Page 211 and 212:
Final Report a. Yes b. No 14. (cont
Page 213 and 214:
Final Report 19. (SATCOM) Can your
Page 215 and 216:
Final Report f. Others/ additional
Page 217 and 218:
Final Report b. High OPEX c. Scarce
Page 219 and 220:
Final Report C. TECHNICAL ASSESSMEN
Page 221 and 222:
Final Report Iridium NEXT Criterion
Page 223 and 224:
Final Report C.1.1 C.1.1.1 Addition
Page 225 and 226:
Final Report C.2 SATCOM SOLUTION 2:
Page 227 and 228:
Final Report MEO / C-band Criterion
Page 229 and 230:
Page 231 and 232:
Final Report T down is the propagat
Page 233 and 234:
Final Report Inmarsat 4 (BGAN) - In
Page 235 and 236:
Final Report Inmarsat 4 (BGAN) - In
Page 237 and 238:
Final Report Table 55: Inmarsat 4 /
Page 239 and 240:
Page 241 and 242:
Final Report GEO / L-band + ANTARES
Page 243 and 244:
Final Report T up is the propagatio
Page 245 and 246:
Final Report Thuraya Criterion ID C
Page 247 and 248:
Final Report Thuraya Criterion ID C
Page 249 and 250:
Page 251 and 252:
Final Report GEO / S-band Criterion
Page 253 and 254:
Final Report GEO / S-band Criterion
Page 255 and 256:
Page 257 and 258:
Final Report GEO / C-band Criterion
Page 259 and 260:
Final Report GEO / C-band Criterion
Page 261 and 262:
Final Report GEO / X-band Criterion
Page 263 and 264:
Final Report GEO / X-band Criterion
Page 265 and 266:
Page 267 and 268:
Final Report SmartLNB Criterion ID
Page 269 and 270:
Page 271 and 272:
Final Report C.10 SATCOM SOLUTION 1
Page 273 and 274:
Final Report GEO / Ku-band Criterio
Page 275 and 276:
Final Report GEO / Ku-band Criterio
Page 277 and 278:
Final Report C.11 SATCOM SOLUTION 1
Page 279 and 280:
Final Report Inmarsat 5 (Global Xpr
Page 281 and 282:
Final Report Inmarsat 5 (Global Xpr
Page 283 and 284:
Final Report C.11.1.2 Inmarsat 5 -
Page 285:
INDRA SISTEMAS Project Manager Xavi
show all

Study on feasibility of SATCOM for railway communication

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?