Resources Allocation Optimization for Real Time Traffic in LTE Cellular Network
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Research in Electronics and Computer Engineering
Abstract
Nowadays, a threefold real time traffic system is
developing where voice, video and data traffic coexist in cellular
networks. Since there are a limited number of resources, some of
the traffic cannot be served in the real time. For example when
all channels are occupied the remaining user equipments (UEs)
requesting the service are blocked. Therefore a resource
allocation optimization for real time traffic needs to be studied
in this context. Significant studies have been conducted with a
common objective of maximizing data rate and adaptive channel
borrowing, however they don’t mitigate the problem of network
coverage at the cell edge and spectrum is not shared efficiently
among data and voice traffic. In this paper we propose three
resource allocation methods for voice/data integrated in cellular
network. In the First case, both voice and data traffic are
assigned separate resources and the communication is in a
dedicated mode. In the second case, we assign different
resources but we allow the reuse of one of the traffic resources
either voice or data provided that the interference is well
managed. Thirdly we propose the method of borrowing the idle
resources depending to the UE transmitting power of new call
arrival. Our resource allocation schemes were developed based
on blocking probability and weighted cell utilization mathematic
model. MATLAB simulation results show that the performance
of our proposed schemes in terms of UE blocking probability
and cell weighted utility is better compared to cellular alone.
Description
Keywords
Resource Optimization, LTE, Real-Time Traffic, Cell utility
Citation
Mukasine, A., Ahishakiye, F., Musabe, R., & Bajpai, G. Resources Allocation Optimization for Real Time Traffic in LTE Cellular Network. International Journal of Research in Electronics and Computer Engineering