| 一种基于CSMA/CA的VLC系统多用户接入方法研究 |
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| 引用本文： | 尚韬,江涛,张颖.一种基于CSMA/CA的VLC系统多用户接入方法研究[J].中兴通讯技术,2014(6):12-15. |
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| 作者姓名： | 尚韬 江涛 张颖 |
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| 作者单位： | 西安电子科技大学综合业务网国家重点实验室,陕西西安710071 |
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| 基金项目： | 国家高技术研究发展（“863”）计划（2013AA010502）,国家重点基础研究发展（“973”）计划（2010CB328303）,国家自然科学基金（61172080） |
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| 摘 要： | 针对可见光的通信距离较短和带宽有限的特点,提出了一种多终端组网的可见光网络模型,对于室内可见光通信(VLC)系统多用户接入碰撞问题,我们分析了这种网络模型的特点,提出了一种基于载波侦听多路访问/冲突避免(CSMA/CA)的多用户接入方法,给出了多用户接入时碰撞概率和系统吞吐量的表达式,并进行了相应的仿真。仿真结果表明模型和接入方法合理有效。
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| 关 键 词： | 室内可见光通信 多用户接入 载波侦听多路访问/冲突避免 |
A Multi-User Access Technology Based on CSMA/CA in VLC Systems |
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| SHANGTao,JIANGTao,ZHANGYing.A Multi-User Access Technology Based on CSMA/CA in VLC Systems[J].ZTE Communications,2014(6):12-15. |
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| Authors: | SHANGTao JIANGTao ZHANGYing |
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| Affiliation: | (State Key Lab of Integrated Service Networks, Xidian University, Xi＇an 710071, China) |
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| Abstract: | Visible light is only used to communicate over a short distance, and the bandwidth is limited. In this paper, we propose a network model based on multi-terminal networking. To address the multi-user access col ision problem, we analyze the network model and propose a multi-user access method based on CSMA/CA. We give the mathematical formulas for col ision probability and system throughput and run corresponding simulations. The results show that multi-user access based on CSMA/CA is a reasonable and effective method. |
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| Keywords: | indoor VLC multi-users access CSMA/CA |
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