ATM 1. 2. BISDN 3. OBP / /

1. 2. BISDN 3. OBP

.

RACE Project 2 (1992. 1 ~ 1995. 5) - CATALYST. (R2074) Project CSELT, Telecom, Telia LAN BISDN , ATM . 34M bps PDH ATM / .

A.

Eb/No(dB)6.46.87.27.68.08.2 BER9.7E-062.8E-067.7E-072.1E-075.7E-082.8E-088.5E-09 DCR5.0E-051.4E-054.7E-061.2E-063.7E-072.2E-076.1E-08 CCR1.6E-054.5E-061.5E-063.8E-071.2E-075.3E-082.6E-08EPR2.0E-066.2E-072.2E-075.8E-081.2E-089.7E-092.1E-09 : DCR(Discared Cell Ratio) : ATM HEC CCR(Corrected Cell Ratio) : HEC EPR(Errored Payload Ratio) : ( ) ATM 8.5

B. /

Eb/No(dB)BERDCRCCREPR6.46.57.37.98.1>208.8E-065.8E-064.3E-076.6E-083.5E-08 0.03.0E-062.1E-061.4E-071.4E-088.6E-09 0.06.3E-054.4E-053.4E-064.4E-071.6E-07 0.0 Basel Nanterre

Eb/No(dB)BERDCRCCREPR6.46.57.37.98.1>208.8E-065.8E-064.3E-076.6E-083.5E-08 0.03.0E-062.1E-061.4E-071.4E-088.6E-09 0.06.3E-054.4E-053.4E-064.4E-071.6E-07 0.0 Basel Nanterre

C. Eutelsat 2 35MHz Ku (94.12) ATM : 24.576MBPS / : 3/4 Convolution QPSK Soft Decision / : ITU-T G.804, G.832 IEEE 802.3 CSMA/CD, FDDI, DQDB

DQDBATMTDMACSMA/CDFDDILAN -ATMCATALYST

ACTS (1993.4)NASA Lewis ARPA Ka OBP/Multibeam ISDN/B-ISDN : BBP, MSM : (Cleveland, Atlanta, Tampa)(East, West, ) 6

( 1995.12 ~ ) CRL (, ) Ka N-Star ( pt - pt) 155Mbps ATM/SDH HDTV 131 Mbps ( CODEC) ATM (CLAD), STM-1 ATM ( SDH Framer)

N-StarKa-BandTransponderHDR TerminalSDH FramerATM HubCLADHDTV CODECVCRHDTVRouter B-ISDNBBCCMUSE EncCATV HE PNESCRL SeikaCommunicationsResearch CenterHDR TerminalSDH FramerATM HubCLADHDTV CODECVCRHDTVCRL Kashima Space Research Center155.52 Mbps ATM / SDHHDR (N - STAR)

HDR - ESLink EvaluationEquipmentATM - HubHDV CODECGraphicWorkstationHD VideoEditingConsoleHigh Definition Monitor1 inch VTRGatewayATM HubINTELSATACTS45Mbps155.52Mbps155.52MbpsHDR - ESLink EvaluationEquipmentATM - HubHDV CODECHigh Definition Monitor1 inch VTRHD VideoCameraHD VideoEditingConsoleGraphicComputer HDR

1. . 2. BISDN 3. OBP

BISDN

BISDN ATM

BISDN

BISDN ( cont.)

- B-ISNN B-ISDN - LAN - addressing routing - Q.2931 - ATM / ATM - - ( MF-TDMA) - UNI SB / TB - 2M bps

BISDN ( cont.)

- Q.2931 , QoS - 155Mbps*N ATM NNI - Addressing - ATM / ATM - / ,

BISDN ATM

ATM Service Architecture - CBR - rt-VBR - nrt-VBR - ABR - UBR - CBR, rt-VBR - ABR, UBR

BISDN ATM

- CBR, rt- VBR - Delay, delay variation - Cell loss

- UBR, ABR - Delay, delay variation - Cell loss

BISDN a)b)c)

1. 2. BISDN 3. OBP

OBP OBP OBP point-to-pointpoint-to-multipointGrout Talk OBP Multirate/Multichannel/Multiservice

OBP OBP Point-to-point point-to-multipointGroup-talkpoint-to-multipoint end-terminal broadcastingmulticasting

OBP OBP Circuit Switch plus Packet Switchinteractive data packet switchingmass file data, nrt-data packet switchingvoice / video circuit switching

OBP Fast Packet Switchinguplink packet switchingATM downlink uplink

OBP

OBP Multirate/Multichannel/MultiserviceMulti-rate conversion merging, sorting, routing Multi-channelOBP RF Multi-service Multi-connectivity copy

OBP MF/TDMAFDMA TDMA bandwidth on demandfrequency hopping

f4f3f2f1T1T2T3Time SlotTime FrameFreqslot

OBP OBP copy cell routing flow control error correction

OBP OBP FastPacketSwitchInputProcessorInputProcessor....CSmulticastcell copyunitCSMUXMUX........sortersorterDownconverterDownconverter....beam #1beam #8beam #1beam #8amplifieramplifierUp-converterUp-converterChannelSeparatorChannelSeparator

OBP ATM cell routing

Translation Table

Incoming Link

Header

Outgoing Link

Header

I1

X

O1

K

Y

Oq

M

Z

O2

L

.

.

.

.

In

X

O1

N

Y

O2

I

S

Oq

G

OBP Error Correction BER burst error ATM header 1bit correction link enhancement bit interleavingburst error extended headerHEC error correction

OBP Fast Packet SwitchInput rate input port ( .)ATM data cell detector multiplexing . QoS .Downlink .

OBP

OBP

OBP

OBP uplink/downlink downlink

OBP =+