Low Cost Wireless Access Onno W. Purbo [email protected] [email protected] June 1999.
Dec 14, 2015
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Transcript
Focus
Experience in Building an AII.Low Cost WirelessTechnology To
Educate Indonesia.
Low cost is the real challenge
Outline
ReferencesHistorical PerspectiveLow Cost Internet Access.
References ..
http://home.pages.de/~flexnet/http://www.tapr.org/http://www.packetradio.com/ftp://ftp.ucsd.edu/hamradio/packet/http://hydra.carleton.ca/http://www.amsat.org/join various mailing list & newsgroup for
discussions
Indonesian List
[email protected] mail to [email protected] message “subscribe ybnet-l” please confirm on request from majordomo
[email protected] mail to [email protected] message “subscribe sysop-l” please confirm on request from majordomo
Indonesia Topology Jan.1993
LAN
InterNet
Universitas Indonesia
BPPTLAPAN
ITB
1200 bps2 Meteran
1200 bps UHF
1200 bpsUHF
LAN
InterNet
Universitas Indonesia
BPPTLAPAN
ITB
1200 bps2 Meteran
1200 bps UHF
1200 bpsUHF
AI3 Indonesia
AI3Indonesia IIX
WIDE
AI3S-One /
SingaREN vBNS
STARTAP
CA*net3
TransPAC
APAN
Success Factor
Community based development.Human Resource Development
Culture! Shifting mind set!
Self-financing.
Internet Access Tech
Assumption
PC Multimedia Available ..VHF / UHF Rig Available ..You have Rp. 30.000 (US$3) in your
pocket ..
Sound Card Packet Radio
Sound Card Packet Radio
Spec: 1200-9600bps PC + Sound Card + Radio
URL: http://home.pages.de/~flexnet/
Search Internet: (Keyword) flexnet
SoundCard Connection
Computer
Mic PCSpeaker PC
Radio / Rig / HT
Speaker HTMic HTPTT
PTT FlexNet via Serial
PTT FlexNet via Printer
PTT FlexNet via MIDI
PTT FlexNet via VOX
Assumption
PC DOS Available ..VHF / UHF Rig Available ..You have Rp. 300.000 (US$30) in
your pocket ..
BayCom Packet Radio
BayCom Packet Radio
Spec: 1200 PC 286 + BayCom Modem + Radio
URL: http://xxx.itb.ac.id/~yc1dav/beginner/ ftp://ftp.ucsd.edu/hamradio/packet/tcpip/
Search Internet: (Keyword) baycom
Install NOS
/spool/mqueue/spool/mail/spool/news/pubautoexec.nosdomain.txtax25.com
autoexec.nos
hostname yd3fua.ampr.orgax25 mycall yd3fuaip address 44.132.136.10attach packet 0x60 ax1 2048 1024start smtpsmtp gateway 44.132.136.1route add default ax1 44.132.136.1route add 44.132.136/24 ax1 direct
domain.txt
Yb3bdl.ampr.org. IN A44.132.138.2
yb1hr.ampr.org. IN A44.132.18.1
yc1dav.ampr.org. IN A44.132.80.1
Activate ax25.com
ax.25 default COM1, 1200bps AFSK. default Txdelay = 200ms
Ax25 -h500 increase Txdelay = 400ms
termin 0x60 remove ax25 from memory
Baycom Packet Radio
PC
BayCom M odem Radio
E-mail software for NOS
Bdale Messy Mailer (BM.exe)PCElmInternal NOS BBS
E-mail Setup using BM
BM - DOS setup
Setup BMRC = a:/bm.rcSetup MAILER = a:/bm.exe
BM - bm.rc setup
Hostname yd1abc.ampr.orguser yd1abcfullname Kabayanreply [email protected] edsmtp /spool/mail/mqueue /spool/mqueue
Assumption
PC Available ..LAN Available ..Telp Available ..You can pay Rp. 10.000 (US$1) /
hourYou can buy modem
Shared Web Access
Shared Web Access
Spec: 33.6Kbps PC Windows / Linux / FreeBSD + phone
URL: http://www.download.com
Search Internet: (Keyword) wingate proxy sock
Dial Shared Web Access
LANProxy
InterNet
Assumption
PC Available ..LAN Available ..Telp Available ..You can pay Rp. 10.000 (US$1) /
6Mbyte mailYou can buy modem
Virtual Host
Virtual Host
Spec: 33.6Kbps PC Windows / Linux / FreeBSD + phone
URL: http://www.download.com
Search Internet: (Keyword) vpop netgate avirt
Virtual Host
LANProxy
InterNet
Virtual Host
Assumption
PC Available ..You have Rp. 3.000.000 (US$300) in
your pocket ..You are able to solder ..
Homebrew 64-200Kbps
64-200Kbps Packet Radio
Spec: 64-200Kbps PC Linux + Homebrew 64-200Kbps
URL: http://xxx.itb.ac.id/~adnan/
Homebrew 64-256Kbps packet radio
We are prototyping 64-256Kbps packet radio network in the lab by [email protected].
AX.25 link layer protocol is used.GMSK MX 589 one chip modem is used.We drive the modem via parallel port.MMIC Minicircuit is being build for
transverter.
Block Diagram
FM Txboard
FM Rxboard
BasebandGMSKmodem
chipMX589
TxCLKTxData
RxCLKRxData
DCD
PTT
DMAInterface
card
PC/Linux
Homebrew 64-200Kbps Modem
TX & RX BoardVHF CB Frequency
Assumption
You are a large group of peopleYou can spare US$3000
WaveLAN CDMA
WaveLAN CDMA
Spec: 2Mbps 5-10 km distance Builtin Router + Ethernet connector
URL: http://hydra.carleton.ca
Homebrew 2Mbps CDMA
Uses CDMA 2Mbps card 915MHz & 2.4GHz
Run on FreeBSD.Homebrew antenna (cost ~US$150).Max. distance 15km (use PA for
more).Most of our high speed MAN using this
technology.
WaveLAN (CDMA)
Internet Discussion Group
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Other Applications
Low Cost Access for Schools
AX.25 1200bps Packet Radio Network.
Proxy Server.Dial on Demand for Web &
Interactive Internet Access.
SMU /SMP
Proxy &Dial on Demand
Radio AX.25Packet Radio Gateway
AX.25Network
InterNetSMU /SMP
Proxy &Dial on Demand
Radio AX.25Packet Radio Gateway
AX.25Network
InterNet
Amateur Packet Network
JakartaBandungMalangSalatiga
YBNET ampr.org
ORARI memberCoordinate via [email protected] 44.132.x.xhttp://xxx.itb.ac.id/~yc1dav/ip/44-132.htm
Application Layer
TCP
AMPRNet IP (44.x.x.x)
InterNet IP
Link Layer (AX.25)
Physical Layer
AMPR.ORG NET
ITB AMPR GATEWAY(LINUX)
INTERNET
WORLD WIDEAMPR.ORG
VHF (Bandung)1200 bps
HF (Nasional)1200 bps
BANDUNG VHFAMPR.ORG
YB-NETAMPR.ORG
EN(DOS/NOS)
JAKUT VHF1200 bpsJAKUT UHF
9600 bps
SALATIGA(DOS/NOS)
SALATIGA VHF1200 bps
UMM(DOS/NOS)
MALANG VHF1200 bps
ITB GATEWAY
ELEKTRINDO NUSANTARA
UNIV. MUHAMMADIYAHMALANG
YB2SV (JOS SOEJOSO)SALATIGA
YBNET ampr.org
ORARI memberCoordinate via [email protected] 44.132.x.xhttp://xxx.itb.ac.id/~yc1dav/ip/44-132.htm
Amateur Packet Satellite
CNRG
Computer Network Research Group ITB
http://xxx.itb.ac.id/~cnrg/
CNRG
Human resource is the key success
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