Assessment and Optimization of Infrastructure and Radio Resource Utilization Efficiency for LTE/LTE-A Cellular Networks, the Case of Ethio Telecom
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Date
2024-12
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Addis Ababab university
Abstract
Customers' quick requests for a variety of primary (basic and required, such as call, SMS/MMS, and data) and secondary (luxury and business class enterprises, such as high BW quality video accessing, video and camera surveillance, and online systematic monitoring & accessing) services via mobile networks necessitate thoughtful, timely responses from suppliers. The existence of many standards makes it difficult for 3G mobile networks to roam and cooperate with other mobile networks. However, LTE is a global standard that provides global mobility and service portability without binding customers to companies' proprietary hardware. Moreover, LTE is primarily a synthesis of multiple previous technologies rather than a completely unique standard. Since LTE/LTE-A/LTE-A pro is the most recent and enhanced service, it can currently satisfy consumer requests for high-speed data, low latency, bandwidth efficiency, multimedia broadcast and unicast, and high-quality cellular broadband services with affordable prices and revenue structures. This will be achieved by utilizing key technologies including orthogonal frequency-division multiplexing (OFDM), RF analysis and carrier aggregation, adaptive modulations, multiple-input multiple-output (MIMO), Hetnets and CoMP, and others. For instance, MIMO technology can significantly increase channel and spectrum efficiency. The physical layer channel includes modulation, cyclic prefix, frequency, bandwidth, and coding rate, all of which contribute to the high throughput. To increase spectral efficiency, the system uses OFDMA as an access mechanism in the downlink and Single Carrier Frequency Division Multiplexing (SC-FDMA) in the uplink. The Sphere Decoding (SD) detector, QR decomposition with M-algorithm maximum likelihood detector (QRM-MLD), Maximum Likelihood (ML) detector, Zero-Forcing (ZF) detector, and Minimum Mean Square Error (MMSE) detector are the superior signal detection methods that are employed. The ideal signal detector has a higher bit-error-rate (BER) in a correlated MIMO-OFDM scenario. even if the suppliers are testing and researching possible future R&D optimizations and service enhancements. In order to upgrade to LTE-4.5G and LTE-5G and offer opulent services like high BW, high QOS, low cost and jitter, error-free, and customer-acceptable, operators and service providers are now innovating, analyzing, and optimizing their LTE/LTE-A systems. As a result, consumers are sharing the globe and enjoying the newest innovations. Furthermore, engineers and technologists are researching and presenting their results and breakthroughs from theses, research, and seminars. In addition to discussing the evaluations, visualizations, and/or analyses utilizing various research techniques and algorithms to trace the availability, this thesis can also discuss LTE/LTE-A in the context of the aforementioned situations. After that, it will make a determination regarding the analysis. Based on the analysis, it is feasible to optimize the structural infrastructures and available resources to improve quick, dependable, and accessible services like SMS/MMS, calls, high bandwidth data, cheap cost, very little jitter, and delay with flawless system integrations. In the framework, market analysis and LTE-Advanced radio network link budget dimensioning are conducted using the COST-231 Hata model; existing LTE traffic, standard, and demographic studies are conducted for macro and small cells, respectively. Additionally, the required system bandwidth is estimated and computed correctly.
As a result, it will offer critiques, suggestions, and conversations regarding the outcome, followed by reports and presentations of the thesis. Based on this thesis study, it will be feasible to conduct a detailed survey, observations, and optimizations of the efficiency of LTE/LTE-A infrastructures and the consumption of radio resources in Ethiopian telecom cellular mobile networks. Additionally, it will analyze the optimizations of LTE/LTE-A upgrades to LTE-A pro and LTE-5G innovations. In addition, this thesis will demonstrate how LTE/LTE-A resource optimizations can serve as technical references and support as well as a means of disseminating engineering research and findings.
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Keywords
LTE, LTE-advanced, BW, OFDM, SC-FDMA, QOS, E-UTRAN, Resource Allocation, Delay, Jitter, SMS/MMS, Efficient Communications. — Radio Resource Management (RRM), radio access technology (RAT), and heterogeneous wireless networks(HetNets).