Comparative Analysis of LTE-M, 4G Cat-1bis, and NB-IoT: Performance Metrics and Usability
Khan, Muhammad Saad Zahid (2025)
2025
Master's Programme in Science and Engineering
Informaatioteknologian ja viestinnän tiedekunta - Faculty of Information Technology and Communication Sciences
Hyväksymispäivämäärä
2025-08-15
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202508148278
https://urn.fi/URN:NBN:fi:tuni-202508148278
Tiivistelmä
The field of Internet of Things (IoT) has completely revolutionized the way we interact with the world. It has brought about newer forms of innovations in smart devices, which communication technologies have leveraged. This thesis aims to explore the performance and suitability of three prominent IoT communication technologies —LTE-M, NB-IoT, and 4G Cat-1bis— adapted in globally deployed smart devices for consumer feedback collection. These IoT-enabled smart devices are deployed across various regions, locations, and network conditions.
Both NB-IoT and LTE-M are traditional Low-Power Wide-Area (LPWA) technologies that provide different specifications to suit varying requirements. LTE-M is optimized for mobility and low latency, making it useful for both static and dynamic environments. NB-IoT is well regarded for its power efficiency and deep indoor coverage, and it is ideally suited for static or low-mobility devices. In contrast to both, 4G Cat-1bis is a widely adopted protocol that uses the existing Long-Term Evolution (LTE) infrastructure to provide a cost-effective, but equally efficient solution with better network connectivity, which acts a bridged solution between both LPWA and traditional LTE technologies, suitable for both static and dynamic environments with deep indoor coverage as well as high data rates.
This thesis aims to do a comparative analysis of key metrics of each technology, such as power consumption, network coverage, connection establishment, latency, global availability, feasibility, certification, and the impact on battery life for data rates. The thesis is conducted using both real-world data collected from IoT devices and simulated test results. The thesis results highlight the trade-offs between each technology in various scenarios, such as low-power consumption, connectivity, adaptability, and varying signal strength. In addition, the results reveal the strength of NB-IoT in terms of power consumption, of LTE-M in mobility, and of 4G Cat-1bis in terms of cost-effectiveness.
The thesis also assesses global challenges such as spectrum availability, device compatibility, and technological adaptability etc. By analyzing these technologies with access to IoT feedback devices, this research offers key insights for IoT developers, telecom providers, and system architects in choosing an optimal, widely available, and dependable technology for deployment and integration scenarios. These findings help advance IoT communication strategies, enabling businesses to select the most suitable solution for their specific deployment and integration needs.
Both NB-IoT and LTE-M are traditional Low-Power Wide-Area (LPWA) technologies that provide different specifications to suit varying requirements. LTE-M is optimized for mobility and low latency, making it useful for both static and dynamic environments. NB-IoT is well regarded for its power efficiency and deep indoor coverage, and it is ideally suited for static or low-mobility devices. In contrast to both, 4G Cat-1bis is a widely adopted protocol that uses the existing Long-Term Evolution (LTE) infrastructure to provide a cost-effective, but equally efficient solution with better network connectivity, which acts a bridged solution between both LPWA and traditional LTE technologies, suitable for both static and dynamic environments with deep indoor coverage as well as high data rates.
This thesis aims to do a comparative analysis of key metrics of each technology, such as power consumption, network coverage, connection establishment, latency, global availability, feasibility, certification, and the impact on battery life for data rates. The thesis is conducted using both real-world data collected from IoT devices and simulated test results. The thesis results highlight the trade-offs between each technology in various scenarios, such as low-power consumption, connectivity, adaptability, and varying signal strength. In addition, the results reveal the strength of NB-IoT in terms of power consumption, of LTE-M in mobility, and of 4G Cat-1bis in terms of cost-effectiveness.
The thesis also assesses global challenges such as spectrum availability, device compatibility, and technological adaptability etc. By analyzing these technologies with access to IoT feedback devices, this research offers key insights for IoT developers, telecom providers, and system architects in choosing an optimal, widely available, and dependable technology for deployment and integration scenarios. These findings help advance IoT communication strategies, enabling businesses to select the most suitable solution for their specific deployment and integration needs.