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Wireless ATM & Congestion Control

PostPosted: Tue Jun 05, 2012 2:50 pm
by Prasanth
Wireless LAN technologies comprise of infrared (IR), UHF radio, spread spectrum, and microwave radio, ranging from frequencies in the region of GHz in Europe (900 MHz in the U.S.) to infrared frequencies.

In ATM networks, the data is divided into small, fixed length units called cells. The cell is 53 bytes. Each cell contains a 5-byte header, which comprises of identification, control priority and routing information. The rest 48 bytes are the actual data. There are two fundamental types of ATM connections

Permanent Virtual Connections (PVC)
Set up by some external mechanism,typically network management.

Switched Virtual Connections (SVC)

Set up automatically through signaling protocol,does not require the manual interaction needed to set up PVCs

WATM has the potential to bring wireless networks a new generation. The success of WATM will be highly relies on the success of ATM/B-ISDN in wired networks.
Both ATM and wireless communicates have put a lot of attention on Wireless. This report introduced the concepts in congestion control for ATM networks, and the specifications for ATM Congestion Control ATM traffic control proposed by ATM