Implementation of RF Band-Pass Filter on UMTS Systems to Improve Quality of Service
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Keywords
RTWP, RF band-pass filter, UMTS quality of services
Abstract
A large number of cellular operators in an area causes high interference effects. One indicator is the problem with received total wideband power (RTWP) found in a universal mobile telecommunication system (UMTS). High RTWP is one of the causes of a decrease in the quality of service (QoS) in cellular communication networks. To solve this problem, an RF band-pass filter device can be implemented on a UMTS system, where RF band-pass filters have been designed and tested in previous studies. In this research, the RF band-pass filter was installed between the BTS node and bottom jumper. After implementing it, QoS measurements with the Huawei M2000 application and Drive Test were carried out. The QoS analysis included RTWP, Circuit-Switched access rate, Packet-Switched access rate, and Received Signal Code Power (RSCP) value. The results show that the RTWP value decreases, while the CS access rate, PS access rate, and RSCP value increase. These results indicate that QoS on the UMTS increases.
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Nyoman Gunantara, Universitas Udayana
Nyoman Gunantara joined with Universitas Udayana (Unud), Bali as lecturer since 2001. He holds Bachelor degree in electrical engineering from Universitas Brawijaya (UB), Master and Doctor degrees in electrical engineering from Institut Teknologi Sepuluh Nopember (ITS). He has 17 years of teaching and research experience. His research interests include wireless communications, ad hoc network, quality network. and optimization. He is a member of the IEEE.
Made Adi Surya Antara, Stikom, Indonesia
Made Adi Surya Antara was born in Denpasar, Bali, in 1983. He received his bachelor degree in electrical engineering from Malang Institute of Technology in 2006, and received his master degree in electrical engineering from Udayana University in 2016. He has been working as an Network Operation in XL telecommunications operator, Indonesia since Desember 2007. He joined with STMIK Stikom Bali as lecturer since 2016. His research interests are in wireless communication, quality network, dan radio frequency spectrum.
NMAE Dewi Wirastuti, Universitas Udayana
Ni Made Ary Esta Dewi Wirastuti was born in Bali, Indonesia, in 1976. She received the Bachelor (S.T) degree in Electrical Engineering form Udayana University, Bali, Indonesia, in 2000, Master of Science (M.Sc) in Mobile Communication Systems from University of Surrey, United Kingdom, in 2002 and Philosophy of Doctor (Ph.D) in Electronics and Telecommunication System from University of Bradford, United Kingdom, in 2007. In 2000, she joined the Department of Electrical Engineering, Faculty of Engineering, Udayana University, Indonesia, as a Lecturer. Her current research interests include wireless and mobile communication systems, digital signal processing, smart and green ICT infrastructure and applications, and technology-enhanced learning. She is a member of the IEEE and IEEE Indonesia Section.
