QoS control in the 3GPP evolved packet system
IEEE Communications Magazine
An overview of downlink radio resource management for UTRAN long-term evolution
IEEE Communications Magazine
A game theoretical formulation for proportional fairness in LTE uplink scheduling
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Downlink scheduling for multiclass traffic in LTE
EURASIP Journal on Wireless Communications and Networking - 3GPP LTE and LTE Advanced
Bargaining Strategies for Networked Multimedia Resource Management
IEEE Transactions on Signal Processing - Part I
Providing quality of service over a shared wireless link
IEEE Communications Magazine
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The LTE specifications provide QoS 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 Modified-Largest Weighted Delay Firs (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 of them. Both algorithms EXP-RULE and M-LWDF have been modified to use a virtual token mechanism to improve their performance, giving priority to real time flows. By taking the arrival rate 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, total cell spectral efficiency, delay and fairness index.