Modeling Efficient Radio Resource Allocation Scheme for MTC and HTC over Mobile Wireless Networks
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Date
2018
Journal Title
Journal ISSN
Volume Title
Publisher
Australasian J. Comp. Sci.
Abstract
: MTC traffic cannot access radio channels reserved for HTC traffic even if the channels are idle and vice versa
which leads to the underutilization of the radio channels. Therefore, the objective of this study was to model an improved channel
allocation scheme, where portions of the radio channels are reserved for each of MTC and HTC traffic but each traffic can access channels
reserved for the other traffic when not in use. Methodology: To overcome the above challenge, this study proposed a channel allocation
scheme to increase the channel utilization. The proposed channel allocation scheme was then analyzed basing on the blocking
probability. Queuing theory was employed to derive expressions for blocking probability of MTC and HTC traffic. The performance of the
improved radio channel allocation scheme was compared to the channel allocation scheme where MTC traffic cannot access channels
reserved for HTC traffic when not in use and vice versa using MATLAB. Results: Numerical results showed that the improved radio channel
allocation scheme reduces the blocking probability of packets which in turn improves the system performance. It was further noted that
the threshold values of channels set for HTC and MTC traffic have an effect on the blocking probability. In addition, channel utilization
and blocking probability are observed to increase with increase in arrival rate and packet sizes. Conclusion: The improved channel
allocation scheme reduces the blocking probability of traffic which in turn improves system performance.
Description
Keywords
Channel allocation, Blocking probability, MTC traffic, HTC traffic, Radio resource
Citation
Grace Nakalema, Julianne Sansa-Otim and Michael Okopa, 2018. Modeling efficient radio resource allocation scheme for MTC and HTC over mobile wireless networks. Australasian J. Comp. Sci., 5: 1-12. DOI: 10.3923/aujcs.2018.1.12