Abstract
In the world of broadband network, Long Term Evolution-Advanced (LTE-A) is facing a large demand due to its high-speed wireless data transmission, extensive coverage from base stations, and a luxury of upgrading protocol software. However, its efficiency depends mainly on the two significant attributes which are reliability and survivability. Further, the prospects of these attributes are mainly based on the LTE architecture and network. In this paper, a hierarchical model is developed based on the architecture of LTE-A networks. Stochastic modeling techniques such as continuous time Markov chains and reliability block diagram are used to obtain reliability, availability and survivability metrics. Further, these metrics are analyzed numerically using the hierarchical model.
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Notes
System is an interdependent group of items forming a unified whole.
Components are any hardware of software part of the network, such as, any link, base station, a part of base station, etc.
Node is either a redistribution point or a communication endpoint.
IMS stands for IP multimedia subsystem which facilitates the use of IP for packet communications.
GSM stands for Global System for Mobile communication and is a digital mobile telephony system that is widely used in Europe and other parts of the world.
Performability is a composite measure a system’s performance and its dependability.
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Gautam, A., Dharmaraja, S. Reliability and survivability assessment of LTE-A architecture and networks. OPSEARCH 60, 370–392 (2023). https://doi.org/10.1007/s12597-022-00607-y
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DOI: https://doi.org/10.1007/s12597-022-00607-y