Title :
Voice over AAL2 system using the shared-buffer scheme
Author :
Ahn, Jae Min ; Seo, Seung Woo
Author_Institution :
Comput. Commun. & Switching Syst. Lab., Seoul Nat. Univ., South Korea
Abstract :
Asynchronous transfer mode (ATM) adaptation layer 2 (AAL2) supports effective transmission of low-bit-rate, short, variable length and real-time voice data. For this purpose, AAL2 assembles voice packets from many channels into a single ATM cell. Cell assembly must be done separately VC by VC (virtual connection), so a buffer management scheme is required. In this paper, we propose the shared-buffer scheme as a cell assembly queue (CAQ) management scheme, and analyze the performance of a voice over AAL2 system which uses the proposed scheme. We focus on the system performance in terms of the cell loss probability due to buffer shortage
Keywords :
asynchronous transfer mode; buffer storage; packet switching; queueing theory; telephony; ATM adaptation layer 2; ATM cell; VC; asynchronous transfer mode; buffer management scheme; cell assembly queue management scheme; real-time voice data transmission; shared-buffer scheme; virtual connection; voice over AAL2 system; voice packets; Analytical models; Assembly; Asynchronous transfer mode; Buffer storage; Data engineering; Performance analysis; Pulse modulation; Switching systems; Traffic control; Virtual colonoscopy;
Conference_Titel :
ATM (ICATM 2001) and High Speed Intelligent Internet Symposium, 2001. Joint 4th IEEE International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-7093-7
DOI :
10.1109/ICATM.2001.932098
