'Code division' diaporamas de présentation

More on Cellular Telephony

More on Cellular Telephony LUCID Summer Workshop July 28, 2004 Overview of Last Time We introduced the cellular concept. Geographic area is broken into smaller cell. Cell phone users in each cell communicate with base station, which has a high antenna tower.

1.19k views • 80 slides

More on Cellular Telephony

More on Cellular Telephony. LUCID Summer Workshop July 28, 2004. Overview of Last Time. We introduced the cellular concept. Geographic area is broken into smaller cell. Cell phone users in each cell communicate with base station, which has a high antenna tower.

977 views • 80 slides

More on Cellular Telephony

More on Cellular Telephony. LUCID Summer Workshop July 28, 2004. Overview of Last Time. We introduced the cellular concept. Geographic area is broken into smaller cell. Cell phone users in each cell communicate with base station, which has a high antenna tower.

922 views • 80 slides

Radio Access

Radio Access. Johan Montelius jm@ sics .se. Shannon. C = W x log 2 (1 + S/N). The capacity [C] in bits/s is directly proportional to the available bandwidth [W] and log 2 proportional to the signal to noise ratio [S/N]. bandwidth & power. Attenuation in open space.

519 views • 43 slides

EC 553 Satellite Communication Systems

643 views • 28 slides

Cell Phones and Computers

Cell Phones and Computers Monica Leclerc Joseph Fasino Nicole Downs History

588 views • 27 slides

Mobile Phones

Mobile Phones. Done By : Saed Fathi 1998 / 2104 Ramy Ghaboun 2002 / 1895 3. Abd Al_Rhman Tabeel 2001 / 0306 Supervision : Dr.eng. Basil Hammad. Contents. Introduction Cells Multiple Access Mobile Generations. Mobile Network. Introduction. What is a mobile phone ?

596 views • 27 slides

Red Meats Prospects Conference

266 views • 14 slides

Broadcast Channels

Broadcast Channels. Synchronization easy. Interference signals follow same path as desired signal (no near-far problem) Complexity/power at transmitter less restricted than at receiver. Multiple Access Channels. Synchronization overhead required.

161 views • 8 slides

Review: The physical layer. Bandwidth/Capacity bit rate/baud rate

319 views • 6 slides