| ATM交换单元输入缓冲方案的改进 |
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| 引用本文： | 张新鹏,吴亚明,张文俊.ATM交换单元输入缓冲方案的改进[J].上海大学学报(自然科学版),2000,6(3):215-221. |
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| 作者姓名： | 张新鹏 吴亚明 张文俊 |
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| 作者单位： | 上海大学,通信与信息工程学院,上海,200072 |
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| 基金项目： | 上海市科委重点基础研究项目资助 |
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| 摘 要： | 改进的输入缓冲方案是在ＡＴＭ交换单元的输入队列和仲裁逻辑之间加入一个准随机存储器。这个准随机存储器的作用是在保证去往同一出线的信元次序不变的条件下，信元可以随机争取出线，作者计算了该方案的最大吞吐率，队列长度，信元丢失率，平均时延，并与三种典型的缓冲方案进行了比较，得知改进的输入缓冲方案具有一定优势。
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| 关 键 词： | 输入缓冲 准随机存储器 ATM交换单元 B－ISDN |
| 修稿时间： | : |
An Improved of Input Buffer at ATM Switching Unit |
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| ZHANG Xin peng,WU Ya ming,ZHANG Wen jun.An Improved of Input Buffer at ATM Switching Unit[J].Journal of Shanghai University(Natural Science),2000,6(3):215-221. |
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| Authors: | ZHANG Xin peng WU Ya ming ZHANG Wen jun |
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| Abstract: | The improved model of input buffer presented is to insert a quasi random memory between input queue and arbitration logic at ATM switching unit. The cells in quasi random memories can randomly complete and be transmit, provided that the sequence of these cells going to same output route in same quasi random memory is not changed. The maximum throughput, the queue size, the cell lost probability and the mean time delay of the improved model is calculated. By comparisons between the improved model and three kinds of typical model, the advantages of the improved model is discussed. |
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| Keywords: | input buffer quasi random memory arbitration logic throughput queue size cell lost probability mean time delay |
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