Abstract
Given the limited frequency band resources and increasing volume of data traffic in modern multiservice networks, finding new and more efficient radio resource management (RRM) mechanisms is becoming indispensable. One of the implemented technologies to solve this problem is the licensed shared access (LSA) technology. LSA allows the spectrum that has been licensed to an owner, who has absolute priority on its utilization, to be used by other participants (i.e., tenants). Owner priority impacts negatively on the quality of service (QoS) by reducing the data bit rate and interrupting user services. In this paper, we propose a wireless multiservice network scheme model described as a queuing system with unreliable servers and a finite buffer within the LSA framework. The aim of this work is to analyze main system performance measures: blocking probability, average number of requests in queue, and average queue length depending on LSA frequencies’ availability.
Highlights
According to Cisco’s latest data, the volume of mobile wireless traffic is expected to increase by almost sixty percent in the five years, leading to a ten-fold growth of generated traffic in multiservice wireless networks [1]
We propose a wireless multiservice network scheme model described as a queuing system with unreliable servers and a finite buffer within the licensed shared access (LSA) framework
Fourth-generation (4G) wireless networks are facing a problem with the lack of radio resources necessary in the operation of multiservice network technologies such as machine-to-machine (M2M) and device-to-device (D2D) communications [2], the numbers of which are hugely increasing as the smart city vision is taking shape [3]
Summary
According to Cisco’s latest data, the volume of mobile wireless traffic is expected to increase by almost sixty percent in the five years, leading to a ten-fold growth of generated traffic in multiservice wireless networks [1]. For this purpose, different shared access technologies to the radio frequency spectrum bands are being developed [6,7,8,9]. The rules governing the usage of the LSA spectrum are spelled out in a reciprocal agreement that takes into account the necessary QoS requirements. The implementation of these rules is possible through various scenarios that have a different impact on the QoS level of users served on the sharing band
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