•   B. I. Bakare

  •   V. E. Idigo

  •   S. U. Nnebe


This paper seeks to present the Interference Management for the Coexistence of DTTV and LTE Systems within the proposed digital dividend band in Nigeria. The study focused on LTE Down-link (DL) signal from the nearest cell site interfering with the Digital Terrestrial Television (DTTV) fixed outdoor receiving antenna in Port Harcourt, Nigeria. The qualitative signal analysis of the DTTV systems is essential as DTTV system cannot start to operate in the newly formed frequency band without the evaluation of the possible harmful influence of the coexisting systems. This research work investigated the Compatibility of the two systems and the Probability of interference of Channel 17 (490MHz) and Channel 51 (693MHz) when DTTV and LTE systems coexist within the proposed Digital Dividend band. A test-bed approach method was adopted for the generation of the required simulation data. Star Time transmitting Station in Port Harcourt and Smile LTE 4G Communication LTE Base Station (eNBs) Network also in Port Harcourt were adopted as the Victim Link Transmitter (VLT) and Interfering Link Transmitter (ILT) respectively. Data was obtained, analyzed, and evaluated. It was observed from the simulation result that the probability of interference is a function of the separation distance between ILT and VLR. The Compatibility analysis result shows that the resulting C/I is above the protection criteria (19dB), that is there’s a minimal rate of interference. Hence, the interference issue can be managed when the two systems coexist in700MHz band. It was also established that DTTV channel 51 suffers more interference when compared with DTTV channel 17 for the same separation distance. The study recommended the minimum protection distance approach (Interference Avoidance method) as the interference management techniques when DTTV and LTE systems coexist in the proposed digital dividend (700MHz) band in Nigeria.

Keywords: Cellular Network; Communication; Digital Terrestrial Television (DTTV); Interfering Link Transmitter (ILT); Long Term Evolution (LTE); Victim Link Transmitter (VLT).


D. M. Mathe, C.F. Lilian, F.S. Farias, C.W.A. João. Interference Analysis between Digital Television and LTE System under Adjacent Channels in the 700 MHz Band, Institute of Information System and Research Centre (IISRC) Zurich, 4(1), pp. 1-9, 2014.

A. Akinbolati, M.O. Ajewole, A.T. Adediji, J.S. Ojo. The Influences of Meteorological Parameters on Digital Terrestrial Television (DTT) Signal in the Tropics, International Journal of Digital Information and Wireless Communications, 7(3), pp.161– 172, 2017.

B. I. Bakare, E.A. Akujobi. Critical Review of Digital Terrestrial Television Broadcasting in Nigeria, EJECE, European Journal of Electrical and Computer Engineering. 2(7), pp. 1-9, 2018.

H. Fattah. 5G LTE Narrowband Internet of things, (NB-IoT). Boca Raton: CRC Press.2019.

A. Kukushkin. Introduction to Mobile Network Engineering: GSM, 3G-WCDMA. 2018.

G. Ancans, E. Stankevicius., V. Bobrovs. Evaluation of LTE 700 and DVB-T2 Electromagnetic Compatibility for Co-channel Case. Progress in Electromagnetic Research Symposium (PIERS), pp. 4253-4257, 2016.

J. Ribadeneira-Ramírez, G. Martínez, D. Gomez-Barquero. Interference Analysis between Digital Terrestrial Television (DTT) and 4G LTE Mobile Networks in the Digital Dividend Bands. Narc ís Cardona IEEE Transactions on Broadcasting. 2015.

Z. Rong, H. Lojos. Co-channel Interference Mitigation Techniques for wireless Circular Network, IEEE Vehicular Technology Magazine 2011.

V. E. Idigo, B.I. Bakare. Assessment of Digital Terrestrial Television Signals in the South – South Region of Nigeria, International Journal of Electronics Communication and Computer Engineering (IJECCE). 12(5) pp. 235-146, 2021.

M. Fuentes, C. Gracia-Pardo, E. Garro, D. Gomez-Barquero, N. Cardona. Coexistence of Digital Terrestrial Television and Next Generation Cellular Networks in the 700 MHz Band. IEEE Wireless Communications. pp 63-69, 2014 DOI: 1536-1284/14/$25.00.

D. M. Okamoto, L. A. R. Silver Mello, M. P. C. Almeida. Analysis of the Interference from LTE System in ISDB-TB Digital TV System at 700 MHz. IEEE, pp.1-5, 2015.DOI: 978-1-4673-9492-5/15/$31.00.

M. Celidonio, P.G. Masullo, L. Pulcini, M. Vaser. Measured Interference of LTE Uplink Signals on DVB-T Channels. Fondazione Ugo Bordoni, Rome, Italy 2 University of Rome Tor Vergata, Rome, Italy Journal of telecommunication and information Technology, 2015.

W. Sami. How can Mobile and Broadcasting Networks use adjacent bands. Ebu Technical Review, 2011.

O. Oguejiofor, A. Abe, A.N. Aniedu, G.N. Okechukwu. Interference Issues and Management Techniques in Heterogeneous Cellular Networks: A Review. The IUP Journal of Telecommunications, X, (4), pp.7-27, 2018 Available at SSRN: https://ssrn.com/abstract=3383514.

D.W. Lee. Inter-cell Interference Management for cellular systems. http://hdl.handle.net/1853/55564. 2016.

G. Ancans, E. Stankevicius, V. Bobrovs. Assessment of DVB-T Compatibility with LTE in Adjacent Channels in 700MHz Band. Elekronika Ir Elektrotechnika, vol. 21 No 4, 2015 Available: at https://dx.doi.org/10.5755/j.01.eee.21.4.12788.

SEAMCAT. Spectrum Engineering Advanced Monte Carlo Analysis Tool Handbook: Edition 2, Electronic Communications Committee ECC Report 252, 2016.

G. Dludla., S. Rananga, A. Swart. Co-existence Study between Analog TV (PAL-1) and LTE in Digital Dividend Band: South African Case Study. IEEE, 1-5, 2018. DOI: 978-1-5386-3060-0/18/$31.00.

S. Promwong, T. Tiengthong, B. Ruckveratham. Evaluation of DTTV Transmission for SFN with Minimum Threshold in Thailand. Wireless Personal Communication. 2020.

Commerce Spectrum Management Advisory Committee (“CSMAC”). Interim Report of Interference and Dynamic Spectrum Access Subcommittee 2010.


Download data is not yet available.


How to Cite
Bakare, B.I., Idigo, V.E. and Nnebe, S.U. 2021. Interference Management for the Coexistence of DTTV and LTE Systems within the Proposed Digital Dividend Band in Nigeria. European Journal of Electrical Engineering and Computer Science. 5, 6 (Nov. 2021), 1-9. DOI:https://doi.org/10.24018/ejece.2021.5.6.366.