Terrestrial Free Space Optical Communication Systems Availability based on Meteorological Visibility Data for South Africa

被引:0
|
作者
Kolawole, Olabamidele O. [1 ]
Afullo, Thomas J. O. [1 ]
Mosalaosi, Modisa [2 ]
机构
[1] Univ KwaZulu Natal, Sch Elect Elect & Comp Engn, Howard Coll Campus, Durban, South Africa
[2] Botswana Int Univ Sci & Technol, Dept Elect Comp & Telecommun Engn, Palapye, Botswana
来源
SAIEE AFRICA RESEARCH JOURNAL | 2022年 / 113卷 / 01期
关键词
Aerosol scattering attenuation; atmospheric turbulence; BER; FSO; link availability; minimum required visibility; PERFORMANCE; FOG; LINK;
D O I
10.23919/SAIEE.2022.9695423
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In spite of the numerous advantages of employing free space optical (FSO) communication systems as viable complementary platforms for next-generation networks, the presence of atmospheric disturbances such as fog and scintillations are major sources of signal impairment which degrade system performance. Consequently, it becomes imperative to investigate and contextualize the unique climatic conditions in those locations where FSO links are to be deployed. Statistical evaluation of meteorological visibility data collected for various cities in South Africa is thus hereby employed in estimating the availability performance of FSO links transmitting at both 850 nm and 1550 nm. It is determined that the cities of Mbombela and Cape Town have the lowest performance due to the high occurrence of fog events as compared to other regions in South Africa. During foggy periods, FSO links in Mbombela and Cape Town would have availabilities of similar to 99.6% for link distances of 500 and 600 metres, respectively. The bit error rate (BER) estimations of intensity modulation and direct detection (IM/DD) FSO links in the presence of weak atmospheric turbulence were also investigated for the identified locations during foggy weather; with the cities of Mafikeng and Kimberley showing the lowest BER performances because of their high wind velocities, altitudes and refractive index values. In order to obtain a BER of 10(-6), receive signal-to-noise ratio (SNR) values ranging from similar to 46 to similar to 51 dB are required for FSO links deployed for data transmission in the various cities investigated in this work.
引用
收藏
页码:20 / 36
页数:17
相关论文
共 50 条
  • [31] BER Analysis of Coherent Free-Space Optical Communication Systems with a Focal-Plane-Based Wavefront Sensor
    Cao, Jingtai
    Zhao, Xiaohui
    Liu, Wei
    Gu, Haijun
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2018, 72 (05) : 555 - 560
  • [32] Information Security Risks Outside the Laser Beam in Terrestrial Free-Space Optical Communication
    Zou, Difan
    Xu, Zhengyuan
    IEEE PHOTONICS JOURNAL, 2016, 8 (05): : 1 - 9
  • [33] Toward Practical Temporal Diversity Coherent Combining Based Variable Data-Rate Free Space Optical Communication Systems
    Li, Faming
    Cui, Sheng
    Chen, Yanan
    Rao, Chenjie
    Tu, Yicong
    Zhou, Keji
    Liu, Deming
    IEEE ACCESS, 2022, 10 : 79480 - 79490
  • [34] Blind Detection for Serial Relays in Free Space Optical Communication Systems
    Elbawab, Mohamed
    Abaza, Mohamed
    Aly, Moustafa H.
    APPLIED SCIENCES-BASEL, 2018, 8 (11):
  • [35] Link Adaptation Algorithms for Free-Space Optical Communication Systems
    Hariq, Sayed Hasan
    Odabasioglu, Niyazi
    13TH IEEE INTERNATIONAL CONFERENCE ON ADVANCED NETWORKS AND TELECOMMUNICATION SYSTEMS (IEEE ANTS), 2019,
  • [36] BER Analysis of Coherent Free-Space Optical Communication Systems with a Focal-Plane-Based Wavefront Sensor
    Jingtai Cao
    Xiaohui Zhao
    Wei Liu
    Haijun Gu
    Journal of the Korean Physical Society, 2018, 72 : 555 - 560
  • [37] Climate effects on performance of free space optical communication systems in Yemen
    Alkholidi A.G.
    Altowij K.S.
    Frontiers of Optoelectronics, 2014, 7 (1) : 91 - 101
  • [38] Modeling and Experimental Study of The Vibration Effects in Urban Free-Space Optical Communication Systems
    Cai, Wenqi
    N'Doye, Ibrahima
    Ooi, Boon S.
    Alouini, Mohamed-Slim
    Laleg-Kirati, Taous Meriem
    IEEE PHOTONICS JOURNAL, 2019, 11 (06):
  • [39] Free space optical communication performance analysis with focal plane based wavefront measurement
    Liu, Wei
    Shi, Wenxiao
    Wang, Bin
    Yao, Kainan
    Lv, Yaowen
    Wang, Jihong
    OPTICS COMMUNICATIONS, 2013, 309 : 212 - 220
  • [40] Free Space Optical Communication with Spatial Diversity Based on Orbital Angular Momentum of Light
    Mehrpoor, Gilda Raoof
    Safari, Majid
    Schmauss, Bernhard
    2015 4TH INTERNATIONAL WORKSHOP ON OPTICAL WIRELESS COMMUNICATIONS (IWOW), 2015, : 78 - 82