engleski

Data Link Control Scheme Based on ARQ Retransmission Scheme for Wireless ATM Transmission

The Asynchronous Transfer Mode (ATM) technique was firstly designed for wired networks. In recent years there is high interest in using ATM as wireless transmission technique. The ATM employs header error control in order to protect cell integrity. However, wireless ATM (wATM) systems require a more powerful 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 efficiency and the buffer requirements of proposed scheme have been performed.

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