Moon, HJ Park, HS Ahn, SC Kwon, WH 2024-01-21T17:06:02Z 2024-01-21T17:06:02Z 2021-09-01 1998-05-25 0140-3664 https://pubs.kist.re.kr/handle/201004/143063 This paper analyzes the performance degradation of the IEEE 802.4 token bus network in a noisy environment where clustered noises are generated with non-zero durations. The operation of the token passing mechanism in a token bus network is modeled by a state machine considering the effects of noise, and then the detailed token passing operation under clustered noise is investigated with the state machine model. The mean token passing time and the mean token rotation time are derived from the detailed token passing operation to evaluate the performance degradation of the IEEE 802.4 token bus network. The experiment on a test bed, which consists of an IEEE 802.4 token bus network and a noise generator, shows that the derived token rotation time is valid. The analysis shows that in a noisy environment the current recovery mechanism for the token passing operation becomes unreliable and the performance of the network decreases because the token is quite easily lost. (C) 1998 Elsevier Science B.V. English ELSEVIER SCIENCE BV Performance degradation of the IEEE 802.4 token bus network in a noisy environment Article 10.1016/S0140-3664(98)00126-1 1 COMPUTER COMMUNICATIONS, v.21, no.6, pp.547 - 557 COMPUTER COMMUNICATIONS 21 6 547 557 scie scopus 000074594100005 2-s2.0-0032071039 Computer Science, Information Systems Engineering, Electrical & Electronic Telecommunications Computer Science Engineering Telecommunications Article IEEE 802.4 performance noise