Comparison of Hybrid Diversity and Space Diversity for Microwave Link Between Islands

Mohammad Andri Kurnia, Eka Wahyudi, Solichah Larasati

Abstract


The development of telecommunications technology today, so that some islands are still not affordable from telecommunications technology. The considerable distance between islands requires the efficiency and flexibility of the technology used. The microwave communication system is a technology that is widely implemented as a cellular network backhaul network because it has advantages in the simplicity of installation and can reach remote areas that are difficult to reach. But on the receiving side, the signal received not only comes from the LOS (Line of Sight) signal but the signal is also reflected by the surface of the Earth. The signal from some of these reflections is called multipath, the signal will cause interference that can cause fading or changes in the electromagnetic waves received. To overcome multipath fading that is too high, it is necessary to optimize antenna diversity using hybrid diversity and space diversity techniques. At maximum optimization of hybrid diversity with 135λ and 300 MHz, RSL -34.54 dBm is obtained, the fading margin is 33.70 dB, and availability is 99.99987%, the optimization is better than space diversity at maximum optimization with 135λ. Optimization of hybrid diversity has met ITU-R standards, with RSL values below -30 dBm and availability above 99.900% - 99.9966%, for the value of fading margins still do not meet the standards but can overcome multipath fading problems.

Keywords


Microwave; Multipath; Fading; Diversity; Space Diversity; Hybrid Diversity

Full Text:

PDF

References


Z. H. Pradana and A. Wahyudin, “Analisis Optimasi Space Diversity pada Link Microwave Menggunakan ITU Models,” Telkom Univ. J. Elektro dan Telekomun. Terap., vol. 4, no. 2, pp. 586–592, 2018.

Faqih, “Konfigurasi Space Diversity Pada Perencanaan Link Microwave Siwa – Sulaho,” Univ. Widyagama Malang, Widya Tek., vol. 18, no. 2, pp. 29–33, 2010.

D. B. Liu, E. Wahyudi, and E. S. Nugraha, “Pengaruh Space Diversity Terhadap Peningkatan Availability pada Jaringan Microwave Lintas Laut dan Lintas Pegunungan,” Telkom Univ. J. Elektro dan Telekomun. Terap., vol. 4, no. 2, pp. 541–550, 2017.

M. Singla and S. S. Tiwana, “A Review on Hybrid Diversity Techniques over various Fading Channels,” Pujabi Univ. Int. J. Eng. Technol., vol. 5, no. 4, pp. 118–120, 2017.

A. Hikmaturrokhman, E. Wahyudi, and H. Sulaiman, “Analisa Pengaruh Interferensi Terhadap Availability pada Jaringan Transmisi Microwave,” Univ. Bangka Belitung, J. ECOTIPE, vol. 1, no. 2, pp. 8–17, 2014.

A. H. A. Wahyudin;, “Perancangan jaringan gelombang mikro menggunakan Pathloss 5: teori dan simulasi,” 2018.

A. Hikmaturrokhman, “Diktat Kuliah Gelombang Mikro,” AKATEL Sandhy Putra Purwokerto, 2007.

E. Sudarmilah, “Antisipasi Pengaruh Pemudaran Gelombang (Fading) pada Transmisi Gelombang Mikro Digital dengan Space Diversity dan Frequency Diversity,” Univ. Muhammadiyah Surakarta, J. Tek. Elekto Emit., vol. 2, no. 2, pp. 69–74, 2002.

A. Hikmaturrokhman, Klasifikasi Link Microwave. Purwokerto: Akatel Shandy Putra, 2012.

R. L. Freeman, Telecomunication System Engineering Third Edition. Canada: A John Wiley & Sons, Inc., Publication, 2004.

H. Lehpamer, Microwave Transmission Networks: Planning, Design, and Deployment Second Edition. New York: The McGraw-Hill Companies, 2010.

C. A. Nwabueze and V. I. Jaja, “Application of Hybrid Diversity Techniques for Improvement of Microwave Radio Link Perfomance in Niger Delta Region,” Chukwuemeka Ojukwu Univ. WJERT, vol. 3, no. 3, pp. 12–26, 2017.




DOI: https://doi.org/10.24114/cess.v5i2.18160

Article Metrics

Abstract view : 550 times
PDF - 374 times

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

CESS (Journal of Computer Engineering, System and Science)

Creative Commons License
CESS (Journal of Computer Engineering, System and Science) is licensed under a Creative Commons Attribution 4.0 International License