engleski

Data Link Control Scheme for Wireless ATM Transmission

The Asynchronous Transfer Mode (ATM) employs header error control in order to protect cell integrity. However, wireless ATM (wATM) systems require a more powerfull error control techniques to offer acceptable cell loss ratio (CLR) and mobile QoS (Quality of Service). This paper describes the data link control (DLC) scheme, used in wireless ATM segment, in order to provide reliable connection services. It analyzes extension of the standard ATM protocol stack by a DLC layer and medium access control (MAC) sublayer. DLC scheme uses TDMA MAC system based on ARQ (Automatic Repeat reQuest) control scheme. The throughput of the system and comparison of the ARQ based approach and the approach based on FEC and interleaving has been performed.

Wireless ATM; Quality of Service; Data Link Control

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