caa a22 4500 475789962 CHVBK 20180406123709.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1023/A:1019126424933 doi (NATIONALLICENCE)springer-10.1023/A:1019126424933 Performance analysis of CSMA/CD‐DRC system [Elektronische Daten] [Masahiro Ishigaki, Yutaka Takahashi, Toshiharu Hasegawa] Multimedia communication systems must handle two types of messages, one is data type and the other is voice type. Data type messages can tolerate longer delay but voice type ones cannot. Though communication systems with huge capacity by optical fibers and ATM switches have little problem for multimedia communication, most of the present LANs cannot handle messages, especially voice type ones, satisfactorily because of their poor capacity. In this paper we propose a new protocol for LANs, CSMA/CD‐DRC (Carrier Sense Multiple Access with Collision Detection and Dynamic Retransmission Control). This protocol is for the multimedia communication systems which must handle those two types of messages but do not have enough channel capacity, and controls retransmission rates dynamically to achieve higher throughput and shorter delay for voice type message. Moreover, we analyze the protocol in order to confirm its performance. In analysis we derive Laplace-Stieltjes transform (LST) of the probability distribution function (PDF) of the performance measures. Through LSTs, we can calculate not only averages but also higher moments of performance measures as well as coefficients of variation. We also present some numerical results, from which we find the proposed protocol can improve the system performance. Kluwer Academic Publishers, 2000 Ishigaki Masahiro Management Information Consulting Department, Nomura Research Institute, Ltd., Shin‐otemachi Bldg., 2‐2‐1 Otemachi, Chiyoda‐ku, 100‐0004, Tokyo, Japan aut Takahashi Yutaka Department of Systems Science, Graduate School of Informatics, Kyoto University, Sakyo, 606‐8501, Kyoto, Japan aut Hasegawa Toshiharu Department of Information Systems and Quantitative Sciences, Faculty of Business Administration, Nanzan University, 18 Yamazato‐cho, Showa‐ku, 466‐0824, Nagoya, Japan aut Telecommunication Systems Kluwer Academic Publishers 15/1-2(2000-11-01), 93-112 1018-4864 15:1-2<93 2000 15 11235 https://doi.org/10.1023/A:1019126424933 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1019126424933 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ishigaki Masahiro Management Information Consulting Department, Nomura Research Institute, Ltd., Shin‐otemachi Bldg., 2‐2‐1 Otemachi, Chiyoda‐ku, 100‐0004, Tokyo, Japan aut NATIONALLICENCE 700 1- Takahashi Yutaka Department of Systems Science, Graduate School of Informatics, Kyoto University, Sakyo, 606‐8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Hasegawa Toshiharu Department of Information Systems and Quantitative Sciences, Faculty of Business Administration, Nanzan University, 18 Yamazato‐cho, Showa‐ku, 466‐0824, Nagoya, Japan aut NATIONALLICENCE 773 0- Telecommunication Systems Kluwer Academic Publishers 15/1-2(2000-11-01), 93-112 1018-4864 15:1-2<93 2000 15 11235 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 475789962 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer