Title :
Efficiency of AAL2 for voice transport: simulation comparison with AAL1 and AAL5
Author :
Petr, David W. ; Vatte, Raghushankar R. ; Sampath, Prema ; Lu, Yong-Qing
Author_Institution :
Inf. & Telecommun. Technol. Centre, Kansas Univ., Lawrence, KS, USA
Abstract :
We evaluate the efficiency of AAL2 for voice transport in ATM networks using a simulation approach. After highlighting some of the general characteristics of AAL2, we adopt as the QoS requirement a bound on the Kth percentile delay in the AAL transmitter. We then determine the maximum number of homogeneous voice sources of a given bit rate that can be supported on a given bandwidth without violating this QoS requirement for AAL1, AAL2 and AAL5. Comparisons with simple analytical approximations are also provided. We conclude that AAL2 can support approximately 5 times as many 8 kb/s voice users as either AAL1 or AAL5, but all AALs can support approximately the same number of 64 kb/s users
Keywords :
asynchronous transfer mode; quality of service; voice communication; 64 kbit/s; 8 kbit/s; AAL1; AAL2; AAL5; ATM networks; Kth percentile delay; QoS requirement; bit rate; homogeneous voice sources; simulation; voice transport; Asynchronous transfer mode; Bandwidth; Bit rate; Computational modeling; Computer simulation; Convergence; Delay; Filling; Standardization; Transmitters;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765403
