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1‐persistent DUAL channel local area network for integrated voice and data application
Author(s) -
Vaman Dhadesugoor R.,
Wu Chin Tu,
Lu Kal
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.4520010210
Subject(s) - computer network , computer science , channel access method , channel (broadcasting) , network packet , throughput , carrier sense multiple access with collision avoidance , data transmission , scheduling (production processes) , multiple access with collision avoidance for wireless , local area network , reservation , real time computing , wireless , engineering , routing protocol , telecommunications , operations management , optimized link state routing protocol
It is a well‐known fact that the carrier sense multiple access with collission detection (CSMA/CD) protocol would suffer from throughput degradations and long packet delays at heavy loads due to excessive collisions and retransmissions, and thus is not suitable for voice/data integration. Recently, a new protocol called carrier sense multiple access with time‐split collision detection and split channel reservation (CSMA‐TCD‐SCR) has been proposed 1 to improve the channel throughput of CSMA/CD protocol by splitting the common channel into dual channels, i.e. one for data transfer and the other for reservation. It has been shown that the CSMA‐TCD‐SCR protocol improves the channel throughput and stability performance significantly. 1 In this paper, we propose a 1‐persistent dual‐channel LAN (1P‐DC‐LAN) protocol with the tree algorithm for reservation, which is an extension of the CSMA‐TCD‐SCR protocol, for voice/data integration applications. Through approximate analytical modelling and computer simulations, it has been demonstrated that the 1P‐DC‐LAN protocol exhibits nearperfect scheduling throughputs for data transmission and highly bounded voice packet delays. In addition, the results were compared with IEEE 802.3 CSMA/CD and twin‐channel CSMA/CD.