DOWNLOAD MY Ph.D Thesis - UNAM

More documents

Recommendations

Info

APPENDIX B: DVB/DAVIC PROTOCOL STACK ANDPACKET FORMATSB.1 Protocol stackIn accordance with [34], INA and NIU support three different solutions for the upstreamchannel: Ethernet MAC bridging, Direct IP and Point to Point (PPP) and as illustrated inFigure B.1. These three solutions allow compatible and interoperable implementationsfor transmitting IP datagrams, Ethernet MAC frames and PPP frames over ATM AAL5[49] and DVB Multiprotocol Encapsulation [33]. The Direct IP solution is mandatoryfor both INA and NIU. However, the other two solutions are optional.Ethernet MAC BridgingApplication (RTP-12)TCP(20) UDP(8)IP(20)LLC (3)SNAP (5)Ethernet MAC (18)Direct IPApplication (RTP-12)TCP(20)IP(20)UDP(8)AAL5(8)ATM (5)Upstream Slot (11)PPPApplication (RTP-12)TCP(20) UDP(8)IP(20)PPP-NLPID(1) & PID (2)RTP: Real-time Transport ProtocolUDP:User Datagram ProtocolTCP: Tranfer Control ProtocolIP: Internet ProtocolSNAP: SubNetwork Attachment PointATM: Asynchronous Transfer ModeAAL5: ATM Adaptation Layer 5PID: Protocol IdentifierNLPID: Network Layer PIDMAC: Media Access Controlote: umbers in parenthesis represent the protocol overhead per data unitFigure B.1 – Protocol stack.A-vi
Appendix BProtocol stack and packet formats pB.2 Packet formatsIn the upstream channel, a 64-byte slot format is used for the transmission of user dataor MAC messages, as shown in Figure B.2a. A Unique Word (UW) of 4-bytes providesa burst mode acquisition method for synchronisation purposes. The payload area is of53-bytes and contains a single ATM cell for user data or MAC control transmissions.Then, a Reed-Solomon (RS) parity field of 6-bytes provides 3-bytes of RS protectionover the payload area. The Guard Band of 1-byte provides spacing between adjacentpackets.In the case where minislots are used, one contention-based upstream slot is divided intothree independent minislots of 21-bytes long as illustrated in Figure B.2b. Each minislotconsists of 4-byte UW, a single byte Start Field (ST), a 16-byte payload and a singlebyte Guard Band (GB), and can only be used to carry only a shortened MAC reservationrequest message when the splitting tree algorithm (introduced in Section 3.4.3) isselected.a) Upstream Slot Formatb) Minislot Format4-bytesUW53-bytes6-bytes1-bytePayload Area (ATM Cell) RS GB5-bytesATMHeader48-bytesInformation Payload64-byte Upstream Slot21-bytes 21-bytes 21-bytes 1-byteMinislot Minislot Minislot GBBursty Data TrafficMAC Control MessageUWSF3-bytes 1-byteMssg. Conf.TypePayloadMACAddress16-bytesMAC Info.ElementGB1-byteFigure B.2 – Upstream slot and minislot frame structure of the DVB/DAVIC protocol.A-vii
Page 6 and 7:
I would like to thank all the peopl
Page 10:
CHAPTER 6: OPTIMISATIO OF CRA ALGOR
Page 13 and 14:
FIGURE 5.17 - SYSTEM THROUGHPUT VS.
Page 15 and 16:
LIST OF TABLESTABLE 2.1 - NEXT GENE
Page 17 and 18:
Chapter 1Introduction pBecause of h
Page 19 and 20:
Chapter 1Introduction pA first step
Page 21 and 22:
Chapter 1Introduction passumption i
Page 23 and 24:
Chapter 1Introduction ppolynomial b
Page 25 and 26:
Chapter 1Introduction pIn general,
Page 27 and 28:
Chapter 1Introduction pminislots to
Page 29 and 30:
Chapter 1Introduction pThe authors
Page 31 and 32:
Chapter 1Introduction prate access
Page 33 and 34:
Chapter 1Introduction p1.4 Overview
Page 35 and 36:
Chapter 2OVERVIEW OF CURRENT CATVNE
Page 37 and 38:
Chapter 2Overview of current CATV n
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Chapter 3THE DVB/DAVIC PROTOCOL3.1
Page 57 and 58:
Chapter 3The DVB/DAVIC protocol pEu
Page 59 and 60:
Chapter 3The DVB/DAVIC protocol pMA
Page 61 and 62:
Chapter 3The DVB/DAVIC protocol pTh
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Chapter 3The DVB/DAVIC protocol p3.
Page 69 and 70:
Chapter 4Simulation and analytical
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Chapter 5Upstream channel capacity
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Chapter 6Optimisation of CRA using
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Chapter 7PERFORMANCE OPTIMISATION F
Page 173 and 174:
Chapter 7Performance optimisation f
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194: Chapter 7Performance optimisation f
Page 201 and 202: aChapter 7Performance optimisation
Page 209 and 210: Chapter 8Final conclusions p8.2 Gen
Page 211 and 212: Chapter 8Final conclusions pWe have
Page 213 and 214: Chapter 8Final conclusions pperform
Page 215 and 216: Chapter 8Final conclusions pslots i
Page 217 and 218: Chapter 8Final conclusions pfocused
Page 219 and 220: Chapter 8Final conclusions preserva
Page 221 and 222: Chapter 8Final conclusions pbandwid
Page 223 and 224: Chapter 8Final conclusions pThe opt
Page 225 and 226: Chapter 8Final conclusions p8.4 Fut
Page 227 and 228: Chapter 8Final conclusions pApplica
Page 229 and 230: Chapter 8Final conclusions pTCIS st
Page 231 and 232: Referencesp[17] I. Cidon, and M. Si
Page 233 and 234: Referencesp[50] N. F. Huang, C. A.
Page 235 and 236: Referencesp[85] V. Rangel, R. Edwar
Page 237 and 238: Referencesp[112] K. Sriram, “Meth
Page 239 and 240: APPEDIX A: GLOSSARYAALABRADSLATMBCB
Page 241 and 242: Appendix AGlossary pkbpsLANLLCMACMA
Page 243: Appendix AGlossary pUSBUWVDSLVoDVoI
Page 247 and 248: Appendix BProtocol stack and packet
Page 249 and 250: APPENDIX C: D VERIFICATION TEST FOR
Page 251 and 252: Appendix D Verification test p209 2
Page 253 and 254: Appendix EResults for a 6 Mbps upst
Page 255: Appendix FGuide to CD-ROM p IEEE802
show all

DOWNLOAD MY Ph.D Thesis - UNAM

Create successful ePaper yourself

Delete template?

Save as template?