Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2014 Vol: 6 Issue: 5

A proportional fair scheduling algorithm based on QoS utility function in wireless networks

Abstract

The traffic of multimedia service in wireless network increases by exponential as the number of applications increase. Since the weakness of proportional fair algorithm in meeting the Quality of Service (QoS) such as delay and packets loss, it is not so widely used in modern wireless communication. This paper proposes a scheduling algorithm that based on QoS utility function in which a parameter is introduced to improve priority mechanism for overcoming such weakness. Simulation results show that our scheduling algorithm can meet the QoS requirements of real-time traffic; and the whole system transmission performance has been markedly improved.

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