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Efficient transport of narrowband and broadband information units in ATM networks
Author(s) -
Pattavina Achille
Publication year - 1988
Publication title -
international journal of digital and analog cabled systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 0894-3222
DOI - 10.1002/dac.4520010413
Subject(s) - computer network , connectionless communication , computer science , network packet , asynchronous transfer mode , multiplexer , narrowband , throughput , broadband networks , multiplexing , packet switching , fast packet switching , broadband , processing delay , telecommunications , transmission delay , wireless
The selection of appropriate information transfer units and their format is an important consideration in engineering a communication network based on the asynchronous transfer mode. This network, which basically consists of self‐routing switches and statistical multiplexers for fixed‐size information units, provides a slotted transport capability for narrowband and broadband services. It is difficult to choose a slot size to carry fixed‐size packets because it might not be optimal for all situations, given an uncertain mix of a variety of services each with different packet size requirements. Selection of a slot size is less critical when the protocol architecture contains a packet multiplexing protocol that allows several packets to be carried in the same slot. This paper describes this type of protocol. It also evaluates the performance of a concentrator for this protocol, providing an upper bound on the throughput and evaluating packet delays for different input levels. The results show that bandwidth can be used efficiently when information units smaller than the usable capacity of a slot are needed, e.g. short data transactions or voice packets.