00000cab a22000003a 4500 UP-99796217609333277 Buklod 20231007234443.0 m |o d | ta 100616s xx d | ||r ||||| || DENGII eng Sriram, K. Voice over ATM using AAL2 and bit dropping performance and call admission control. pp. 18-28 Asynchronous transfer mode (ATM) adaptation layer 2 (AAL2) has been designed for efficient transport of voice, fax, and voiceband data (VBD) traffic over an ATM virtual circuit. The protocol helps achieve low latency and high bandwidth efficiency while applying suitable compression methods on voice/VBD/fax calls and silence elimination on voice calls. We analyze the performance and capacity of an ATM multiplexer based on AAL2 adaptation. We assume that embedded adaptive differential pulse code modulation (ADPCM) is used to compress voice, and silence elimination is used to achieve statistical multiplexing gain. The embedded ADPCM coding scheme allows selective dropping of less significant bits of voice during congestion in the ATM/AAL2 multiplexer. We compare the call capacities of voice multiplexers with and without bit dropping (BD). The performance models and results presented are based on fairly general assumptions and can be used for traffic engineering and call admission control in land-line or wireless ATM systems for a variety of voice/voiceband compression algorithms. A generalized algorithm for call admission control is also described AAL2. ATM adaptation layer 2. ATM virtual circuit. Adaptive differential pulse code modulation. Asynchronous transfer mode. Bit dropping. Call admission control. Call capacities. Embedded ADPCM coding. Fax calls. Generalized algorithm. High bandwidth efficiency. Land-line ATM systems. Low latency. Multiplexer. Performance models. Protocol. Silence elimination. Statistical multiplexing gain. Traffic engineering. Voice multiplexers. Voice over ATM. Voice traffic. Voice/Voiceband compression algorithms. Voiceband data traffic. Wireless ATM systems. IEEE Journal on selected areas in communications 17, 1 (1999). FO Article