《移动数据及互联网》PPT课件.pptVIP

2021/6/30 2021/6/30 Mobile Data Internet Onno W. Purbo Onno@indo.net.id 2021/6/30 Fokus .. Mengupas Realita Impian Wireless / Mobile Data Network 2021/6/30 Internet Evolves Internet Fixed Internet Internet Mobile Internet 2021/6/30 Struktur Wireless Mobile Data Mobile Wireless Berasal Voice (GSM, GRPS, EDGE, WCDMA) Berbasis Data (PAGER, DATATAC) Fixed Wireless Packet Radio IEEE 802.11a, b Laser 2021/6/30 Mobile Wireless Data 1 arah – pager 2 arah – DataTAC 2021/6/30 2 Way Pager 2021/6/30 Mobile Data 2021/6/30 2021/6/30 2021/6/30 Struktur Wireless Mobile Data Mobile Wireless WCDMA 2Mbps PAGER slow Fixed Wireless Packet Radio slow IEEE 802.11b 11Mbps IEEE 802.11a 54Mbps – 100Mbps Laser 155-622Mbps 2021/6/30 Mobile Wireless Modem US$170-350 Handset Rp. 1-2 juta Airtime 9600bps Butuh operator selular GPRS ~100Kbps di Singapore 2021/6/30 Evolutions of Mobile Systems cdmaOne Packet Data GSM TDMA CDPD cdma2000 1X EDGE WCDMA cdma2000 1XEV 2G First Step into 3G 3G phase 1 GPRS PDC PDC-P 64 - 144 Kb/s Evolved 3G 384 Kb/s - 2 Mb/s 384 Kb/s - 8 Mb/s Time 2000/2001 2001/2002 2003+ ? 64 kb/s 2021/6/30 Tahapan di GSM .. 2+ = GSM Phase 2+ HSCSD = High Speed Circiut Switched Data (14.4kbps * n) GPRS = General Packet Radio System (up to 114 kbps) EDGE = Enhanced Data GSM Environment (up to 560 kbps) UMTS = Universal Mobile Telephone Service (up to 2 Mbps) 2021/6/30 2021/6/30 2021/6/30 2021/6/30 2021/6/30 Aplikasi Wireless Data Konvensional SMS Pager WAP Non-Konvensional Unified Messaging SMS E-mail FAX Bar code Pager Dll ..