非直视紫外光通信组网多用户干扰问题

宋鹏; 宋菲; 李云红; 王建余; 熊扬宇

doi:doi:10.3788/gzxb20164509.0906001

光子学报, 2016, 45 (9): 0906001, 网络出版: 2016-10-19

非直视紫外光通信组网多用户干扰问题

Inter-link Multi-user Interference in Non-line-of-sight Ultraviolet Communication Network

论文大纲

宋鹏 ^*宋菲李云红王建余熊扬宇

作者单位

西安工程大学电子信息学院, 西安 710048

摘要

针对空分复用的紫外光通信网络中链路间多用户干扰的问题. 基于一组典型的通信链路模型, 采用紫外光多次散射理论, 应用蒙特卡洛方法对系统的误码率与通信节点间距离、链路间夹角、收发仰角等参量间的关系进行分析.结果表明：误码率随着通信节点间距离的增大而增大, 发射功率为100 mW时, 通信距离应小于120 m; 随着链路间夹角的增大, 误码率先减小后逐渐保持不变, 然后又增大, 链路间夹角在60°～120°内取值; 接收端仰角和发射端仰角对误码率的影响几乎相同, 即随着收发仰角的增大, 误码率先减小后迅速增大, 15°时误码率最小.

Abstract

The Ultraviolet (UV) communication network which is based on the space division multiplexing technique will be faced with the problem of inter-link multi-user interference. For a set of typical communication link models, based on the theory of multiple-scattering, and Monte Carlo method was used to analyze the relationships between the probability of error and the distance from transmitter to receiver, the angle between two links, transmitters′ elevation angle and receivers′ elevation angle, respectively. The results show that, the probability of error increases with the increase of the distance from transmitter to receiver, the communication distance should be less than 120 meters when emission power is 100 mW; with the increase of the inter-link angle, the probability of error decreases first, then remains the same gradually, and then increases, the inter-link angle should be within 60°~120°; the influence of the elevation angle of transmitter and receiver on the probability of error is almost the same, that is the probability of error decreases first and then increases rapidly with the increase of the elevation angle, the minimum probability of error at 15°.

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宋鹏, 宋菲, 李云红, 王建余, 熊扬宇. 非直视紫外光通信组网多用户干扰问题[J]. 光子学报, 2016, 45(9): 0906001. SONG Peng, SONG Fei, LI Yun-hong, WANG Jian-yu, XIONG Yang-yu. Inter-link Multi-user Interference in Non-line-of-sight Ultraviolet Communication Network[J]. ACTA PHOTONICA SINICA, 2016, 45(9): 0906001.

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