| 赵太飞,王玉,高英英.无线紫外光非视距通信网络的连通性能研究[J].光电子激光,2015,26(1):68~74 |
| 无线紫外光非视距通信网络的连通性能研究 |
| Connectivity performance analysis of UV-NLOS communication metwork |
| 投稿时间：2014-08-13 |
| DOI： |
| 中文关键词: 无线紫外光网络 1-连通 非视距(NLOS) 通信覆盖范围 |
| 英文关键词:wireless ultraviolet network 1-connected non-line-of-sight (NLOS) communi cation coverage range |
| 基金项目:国家自然科学基金-中国民航局民航联合研究基金(U1433110)、陕西省科技计划工业公关 (2014K05-18)、陕西省教育厅产业化培育(2013JC09)、西安市科学计划(CXY1435( 4))和西安市碑林区科技计划项目(GX1302)资助项目 (1.西安理工大学 自动化与信息工程学院,陕西 西安 710048； 2.电子科技大学 光纤传感 与通信教育部重点实验室,四川 成都 610054) |
|
| 摘要点击次数: 1414 |
| 全文下载次数: 65 |
| 中文摘要: |
| 研究了空间角度对无线紫外光非视距(UV-NLOS)通 信系统连通概率的影响。仿真分析了500个节点均匀分布的网络处于1-连通状态时收发仰角 对网络性能的影响,并分析了 OOK和PPM调制方式下网络节点密度、通信覆盖范围、数据传输速率和发送功率等网络性能参 数。结果表明,网络处于1-连通状态时,PPM调制方式能获得比OOK调制方式更好的网络连 通性能；相同调制方式下,定向发送-垂直接收比垂直发送-垂直接收场景下网络性能更佳 ；定向发送-定向接收场景下,收发端仰角均为小角度时各网络连通效果更好。 |
| 英文摘要: |
| This paper studies the network performance parameters with different non-line-of-sight (NLOS) communication modes.According to the different transceiver elevations, the UV communication network connectivity probabilities with the different modul ation methods and the path loss models are considered.The network performance parameters with different transcei ver elevations are simulated in a wireless UV NLOS 1-connected network with uniformly distributed 500nodes.The n ode density,communication coverage range,data rate and transmission power with on-off keying (OOK) and pu lse position modulation (PPM) are analyzed. In the 1-connected UV network, the simulation results show that the network performance parameters with PPM are better than those with OOK.The network performance parameters of directional transmitting-vertical receiving is better than those of vertical transmitting-vertical receiving in the same modulation mode.When the transce iver elevation angles of connected network are larger than 40° with directional transmitting-directional receiv ing,the changes of network connectivity performance parameters are not obvious.In addition,the network has optimum perfo rmance parameters with small transceiver elevation angles. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|