| 基于碰撞识别的优先级仲裁策略 |
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| 引用本文： | 党小超,路振宇,郝占军.基于碰撞识别的优先级仲裁策略[J].计算机工程与应用,2012,48(27):74-78,93. |
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| 作者姓名： | 党小超 路振宇 郝占军 |
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| 作者单位： | 1. 西北师范大学计算机科学与工程学院,兰州730070;甘肃省物联网工程研究中心,兰州730070
2. 西北师范大学计算机科学与工程学院,兰州,730070 |
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| 基金项目： | 甘肃省科技支撑计划项目(No.090GKCA075) |
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| 摘 要： | 针对单一信道下可用资源的分配问题,提出了基于碰撞识别的优先级仲裁策略,在研究了曼彻斯特编码特点的基础上,设计了一种新的编码方案,推导了优先级生成的模型,分析了仲裁的效率。仿真结果表明,在采用基于时分复用的MAC协议的前提下,同传统的逐节点询问方式相比,仲裁时间缩短为原来的四分之一。
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| 关 键 词： | 资源分配 曼彻斯特编码 碰撞识别 优先级生成 |
Collision detection based priority level arbitration algorithm |
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| DANG Xiaochao
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LU Zhenyu
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HAO Zhanjun.Collision detection based priority level arbitration algorithm[J].Computer Engineering and Applications,2012,48(27):74-78,93. |
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| Authors: | DANG Xiaochao LU Zhenyu HAO Zhanjun |
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| Affiliation: | 1,2 1.College of Computer Science and Engineering,Northwest Normal University,Lanzhou 730070,China 2.Gansu Province Internet of Things Engineering Research Center,Lanzhou 730070,China |
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| Abstract: | In view of the communication resources distribution in single channel,collision detection based priority level arbitration algorithm is proposed.Based on the characteristic of Manchester code,a novel priority level coding scheme is designed,and priority level generating model is derived as well.In addition the efficiency of priority level generation is analyzed.The simulation result shows that on the premise of adopting TDMA-based MAC,compared with the inherent method that inquires each node individually,the time involved in arbitrating for the node with the highest priority level can be reduced by a quarter. |
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| Keywords: | resource distribution Manchester code collision detection priority level generation |
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