發(fā)布時(shí)間：2018-10-11 08:03

【摘要】：近幾年,隨著計(jì)算機(jī)通信進(jìn)入高速發(fā)展的大數(shù)據(jù)時(shí)代,超高速、超大數(shù)據(jù)的傳輸需求對(duì)網(wǎng)絡(luò)性能的要求越來越高。星形網(wǎng)以其擴(kuò)展性好、宜于連接光纖的特點(diǎn)受到廣泛應(yīng)用。國內(nèi)外已有大量關(guān)于星形結(jié)構(gòu)網(wǎng)絡(luò)的研究報(bào)告,競爭-沖突淘汰(Contention-Collision Cancellation,簡稱C-CC)存取控制方式就是星形網(wǎng)的一種創(chuàng)新的存取控制方式。根據(jù)數(shù)據(jù)單元產(chǎn)生、請(qǐng)求發(fā)送和服務(wù)方式的情況,可將C-CC方式組合成六類系統(tǒng)模型。其中單星網(wǎng)的數(shù)學(xué)建模已經(jīng)完成,由于多星網(wǎng)數(shù)學(xué)解析的復(fù)雜性,對(duì)其的研究較之前者比較困難,因此許多工作還有待完成。本文討論了C-CC方式顧客到達(dá)和請(qǐng)求服務(wù)均為隨機(jī)發(fā)生的V類系統(tǒng)模型。定義了較重負(fù)載應(yīng)滿足的條件：1)觀察時(shí)點(diǎn)系統(tǒng)顧客數(shù)大于1；2)每個(gè)服務(wù)期系統(tǒng)都會(huì)有新顧客產(chǎn)生。通過建模求出了顧客在系統(tǒng)中的繼續(xù)滯留時(shí)間,并通過數(shù)值分析討論了顧客到達(dá)率、數(shù)據(jù)單元長度等性能參數(shù)對(duì)顧客滯留時(shí)間的影響,為構(gòu)造雙星網(wǎng)的理論研究和實(shí)際應(yīng)用提供了重要依據(jù)。
[Abstract]:In recent years, with the rapid development of computer communication in big data era, the demand for ultra-high speed and super-large data transmission is becoming more and more demanding for network performance. Star network is widely used because of its good expansibility and suitable for connecting optical fiber. There have been a lot of research reports on star-structured networks at home and abroad. Contention-Collision Cancellation, (Contention-Collision Cancellation, for short) access control is an innovative access control method for star-shaped networks. According to the data unit generation, request sending and service mode, the C-CC mode can be combined into six kinds of system models. The mathematical modeling of single star network has been completed. Due to the complexity of mathematical analysis of multi-satellite network, it is more difficult to study it than the former, so many work has yet to be completed. This paper discusses a class V system model in which both customer arrival and request services are randomly occurring in C-CC mode. The conditions that should be satisfied with heavy load are defined as follows: 1) the number of customers in the observation time system is more than 1 / 2) there are new customers in each service period system. The customer retention time in the system is calculated by modeling, and the influence of customer arrival rate, data unit length and other performance parameters on customer retention time is discussed by numerical analysis. It provides an important basis for the theoretical research and practical application of the construction of double star network.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TP393.09

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 逯昭義;競爭－沖突淘汰存取方式Ⅰ類系統(tǒng)模型性能評(píng)價(jià)[J];電子學(xué)報(bào);1995年09期

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本文編號(hào)：2263450