Authors : Muzala Malichi; Evaristo Musonda

Volume/Issue : Volume 9 - 2024, Issue 4 - April

Google Scholar : https://tinyurl.com/2mxc9feu

Scribd : https://tinyurl.com/3k43x2d6

DOI : https://doi.org/10.38124/ijisrt/IJISRT24APR1032

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : High speed mobile internet results in better user experience and satisfied subscriber. However factors that affect the download speed include transfer technology, number of subscribers sharing the connection, device capability and radio conditions at the subscriber location. This research was conducted to review the mobile internet performance in Zambia and determine its conformity to the regulator, ZICTA, QoS regulation. Two sets of empirical data were collected in the capital city, first in 2021 during the covid pandemic period and second in 2024. The data was compared to check for network operator developments. The results reveal that two MNOs acquired new 2600MHz spectrum, however only one MNO drew maximum benefit resulting in improved 4G download speeds. This improvement was despite an increase in market share over the same period. The second operator that deployed the 2600MHz LTE TDD mode spectrum recorded a degradation in overall downloads speeds when compared to the initial data set in spite of a reduction in market share over the same period. Thus the steps to improve the LTE network are to add more spectrum to at least reach the 3GPP Rel 10 standard of 5 carrier configuration (5CC) to reach a total 100MHz and configure network features like Carrier Aggregation (CA) to provide for higher throughputs for capable devices. Other ways to expand LTE network include add more antennas to allow for higher spectral efficiency using 8 x 8 MIMO or more and thirdly deploy Small cells solution to enhance coverage and capacity in both indoor and outdoor environment.

Keywords : LTE Download Throughput, LTE Cell Bandwidth, LTE Frequency Bands, LTE Carrier Aggregation, Latency.

References :

1. GSMA 2020, “The Mobile Economy Sub-Saharan Africa 2020”. Viewed 25 September 2022.  (https://www.gsma.com/mobileeconomy/wp-content/uploads/2020/09/GSMA_MobileEconomy2020_SSA_Eng.pdf).
2. GSMA 2021, “The Mobile Economy Sub-Saharan Africa 2022”. Viewed 25 September 2022. (https://www.gsma.com/mobileeconomy/wp-content/uploads/2021/09/GSMA_ME_SSA_2021_English_Web_Singles.pdf)
3. Republic of Zambia SMART Zambia Institute, 2021. Our Mandate. Viewed 30 January 2024. (https://www.szi.gov.zm/?page_id=187)
4. ZICTA 2021, “Information and Communications Technologies Sector 2021 Mid-Year Market Report, January – June 2021.” Viewed 25 September 2021. (https://www.zicta.zm/publications)
5. ZICTA 2019, “QUALITY OF SERVICE GUIDELINES 2019.” Viewed 25 September 2021. (https://www.zic)ta.zm/publications)
6. Sridhar, V., K. Girish & K, M. Badrinarayan, 2020. “Analysis of crowdsourced data for estimating data speeds across service areas of India”. Viewed 24 September 2021. (https://www.springerprofessional.de/analysis-of-crowdsourced-data-for-estimating-data-speeds-across-/18612078).
7. Putra G.M et al, 2021. “4G LTE Experience: Reference Signal Received Power, Noise Ratio and Quality”. 2021 3rd East Indonesia Conference on Computer and Information Technology (EIConCIT), Surabaya, Indonesia, 2021, pp. 139-144, doi: 10.1109/EIConCIT50028.2021.9431853. Viewed 26 September 2022. https://ieeexplore.ieee.org/document/9431853
8. Silalahi L.M et al, 2021. "Improvement of Quality and Signal Coverage LTE in Bali Province Using Drive Test Method". International Seminar on Intelligent Technology and Its Applications (ISITIA), Surabaya, Indonesia, 2021, pp. 376-380, doi: 10.1109/ISITIA52817.2021.9502227. Viewed 26 September 2022. (https://ieeexplore.ieee.org/abstract/document/9502227/citations#citations)
9. Salo, J., E. Zacarias., 2017. “Analysis of LTE Radio Load and User Throughput”. International Journal of Computer Networks & Communications (IJCNC) Vol.9, No.6, November 2017. Viewed 25 September 2021. (https://airccse.org/journal/ijc2017.html)
10. Wannstrom, J. 2022. “Carrier Aggregation explained”. Viewed 26 September 2022.   (https://www.3gpp.org/technologies/101-carrier-aggregation-explained)
11. ETSI TS 136 101 V14.7.0, 2018. “LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception (3GPP TS 36.101 version 14.7.0 Release 14).” Viewed 26 September 2022. (https://www.etsi.org/deliver/etsi_ts/136100_136199/136101/14.07.00_60/ts_136101v140700p.pdf)
12. Synnergren, P & Dudda, T. 2014. “LTE Latency Improvement Gains”. Viewed 26 September 2022. (https://www.ericsson.com/en/blog/2014/11/lte-latency-improvement-gains)
13. International Telecommunication Union (ITU), 2019. Recommendation ITU-T E.806, "Measurement campaigns, monitoring systems and sampling methodologies to monitor the quality of service in mobile networks". Viewed 26 September 2022.  (https://www.itu.int/rec/dologin_pub.asp?lang=s&id=T-REC-E.806-201906-I!!PDF-E&type=items)
14. GSMA 2019, “5G in Sub-Saharan Africa: laying the foundations”. Viewed 25 September 2022. (https://data.gsmaintelligence.com/api-web/v2/research-file-download?id=45121572&file=2796-160719-5G-Africa.pdf)
15. HBR radiofrequency technologies 2022, 4G LTE, viewed 8th January 2023. (https://halberdbastion.com/technology/cellular/4g-lte).
16. Afroz et al. 2015. “SINR, RSRP, RSSI AND RSRQ MEASUREMENTS IN LONG TERM EVOLUTION NETWORKS”. International Journal of Wireless & Mobile Networks (IJWMN) Vol. 7, No. 4, August 2015. Viewed 8th January 2022. (https://www.researchgate.net/publication/282837213_SINR_RSRP_RSSI_and_RSRQ_Measurements_in_Long_Term_Evolution_Networks/link/57ab0b1c08ae42ba52ae7fba/download)
17. Huawei 2022, What are the differences between RSRP, RSRQ, RSSI & SINR. Viewed on 8th January 2023. (https://forum.huawei.com/enterprise/en/what-are-the-differences-between-rsrp-rsrq-rssi-and-sinr/thread/665359)-869?page=1&authorid=3132349).
18. Traficom 2019, Factors affecting the speed and quality of internet connection. Viewed 25 September 2021. https://www.traficom.fi/en/communications/broadband-and-telephone/factors-affecting-speed-and-quality-internet-connection
19. Bhosle, A S., 2017. “Emerging Trends in Small-Cell Technology”. International Conference on Electrical, Instrumentation and Communication Engineering (ICEICE2017). Viewed 25 September 2021.  (https://ieeexplore.ieee.org/abstract/document/8191847).
20. Nakamura, T et al. 2017. "Trends in small cell enhancements in LTE advanced”, IEEE Communications Magazine, vol. 51, no. 2, pp. 98-105, February 2013, doi: 10.1109/MCOM.2013.6461192.
21. Juho, L., Jin-Kyu, H., & Jianzhong, Z., 2009. "MIMO Technologies in 3GPP LTE and LTE-Advanced". J Wireless Com Network, vol. 2009, no. 1, 2009. doi:10.1155/2009/302092. Viewed 25 September 2021. (https://cyberleninka.org/article/n/574084). 
22. Gary Xu et al. 2017. "Full Dimension MIMO (FD-MIMO): Demonstrating Commercial Feasibility}". IEEE Journal on Selected Areas in Communications, Volume 35, pages 1876 - 1886. Viewed 25 September 2022. (https://www.semanticscholar.org/paper/Full-Dimension-MIMO-(FD-MIMO)%3A-Demonstrating-Xu-Li/5c6d033951722816ce6e715d4f039c26dc56bab8).
23. Gyokov Solutions, 2023. Android OS UMTS/GSM/LTE/CDMA/EVDO Network Monitor and Drive Test tools. Viewed 26 September 2022. (https://www.gyokovsolutions.com/G-NetTrack%20Android.html)
24. ZICTA 2024. “ICT Sector 2023 Mid-year Market Report.” Viewed 26 March 2024. (https://www.zicta.zm:448/api/download-document/press-release-market-report-2023pdf-3)