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[IWY13] Resource Allocation for Real Time Services in LTE Networks Using Cooperative Game Theory and Virtual Token MechanismRevue Internationale avec comité de lecture : Journal International Journal Wireless Personal Communications , pp. accepté, 2013Mots clés: quality of service · long term evolution · cooperative game theory · shapley value
Résumé:
The LTE specification providesQoS for multimedia
services with fast connectivity, high mobility and security.
However, 3GPP specifications have not defined scheduling
algorithms to exploit the LTE characteristics to support
real time services. In this article we propose a two level
scheduling scheme composed by cooperative game theory,
a virtual token mechanism, and the well known algorithms
EXP-RULE and M-LWDF in downlink system. By using
cooperative game theory such as bankruptcy game and Shapley
value, the proposed mechanism works by forming coalitions
between flow classes to distribute the bandwidth fairly
among all them. Both algorithms EXP-RULE andM-LWDF
have been modified to use a virtual token mechanism to improve
their performance, giving priority to real time flows.
By taking the arrival rates of packets into account, the proposed
mechanism partially included in previous schedulers
has been adapted to this work to increase remarkably the
performance of the resource allocation for real time flows.
The performance evaluation is conducted in terms of system
throughput, packet loss ratio (PLR), total cell spectral
efficiency, delay and fairness index.
Equipe:
mim
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