| LTPB网络带宽分配策略的实时性能研究 |
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| 引用本文： | 周强,熊华钢,罗志强. LTPB网络带宽分配策略的实时性能研究[J]. 北京航空航天大学学报, 2001, 27(1): 20-23 |
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| 作者姓名： | 周强 熊华钢 罗志强 |
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| 作者单位： | 北京航空航天大学 电子工程系 |
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| 摘 要： | 研究LTPB(线性令牌传递总线)在通信网络中保证消息实时传输的带宽分配问题.LTPB网络带宽的分配是以保证网络消息的实时传输为目标的,网络中关键参数(一定时间内发送消息的最小量)的准确与否将关系到网络带宽分配的合理性和有效性.通过对带宽分配方法实时特性的分析,发现了当前分析方法中的不足,提出了"最差情形"的概念,并以此建立了合理的推导模型,得出了有关LTPB网络实时性分析的关键性结果,并为下一步寻求更优的带宽分配方法提供了可靠的分析基础.
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| 关 键 词： | 局部区域网络 总线式结构 实时系统 线性令牌传递总线 带宽分配 |
| 文章编号： | 1001-5965(2001)01-0020-04 |
| 收稿时间： | 1999-09-13 |
| 修稿时间： | 1999-09-13 |
Research on Real-Time Performance of Bandwidth Allocation for LTPB Network |
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| ZHOU Qiang,XIONG Hua-gang,LUO Zhi-qiang. Research on Real-Time Performance of Bandwidth Allocation for LTPB Network[J]. Journal of Beijing University of Aeronautics and Astronautics, 2001, 27(1): 20-23 |
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| Authors: | ZHOU Qiang XIONG Hua-gang LUO Zhi-qiang |
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| Affiliation: | Beijing University of Aeronautics and Astronautics, Dept. of Electronic Engineering |
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| Abstract: | The problem of guaranteeing real-time message transmission in LTPB network, linear token passing bus, has been studied. Bandwidth allocation for LTPB aims at real-time message transmission, and the key parameter, the minimum amount of time used for real-time message transmission in unit time, is an important factor to the property and validity of the bandwidth allocation. Having found out a defect in current real-time performance analysis method, we propose a concept of "the worst case situation", develop a reasonable model, get an important result in real-time performance analysis for LTPB network, and establish the analytic foundation to seek the better bandwidth allocation scheme. |
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| Keywords: | local area networks bus organization real time systems linear token passing bus bandwidth allocation |
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