Basic HTML version of Foils prepared 5 February 98

Foil 57 Mobile computing

From Introduction to Networking Technologies CPS640 MultiMedia and Networking -- Spring Semester 1998. by Roman Markowski
1 Standards to transmit TCP/IP over cellular connection
  • CDPD - Cellular Digital Packet Data (uses its own suite of protocols to encapsulate TCP/IP data over the air link); rate: 19.2 Kbps
  • CSC - Circuit Switched Cellular (after dialing you receive a dedicated link for data transmission with SLIP or PPP); rate: 1.2-14.4 Kbps
2 Wireless services:
  • Enhanced Specialized Mobile Radio (ESMR) Rate: 4.8 Kbps
  • Bi-directional satellite
  • Personal Communication Services (PCs)
  • Spread-spectrum system based on Code Division Multiple Access (CDMA) or Time Division Multiple Access (TDMA); Rate up to 76 Kbps
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