A New Scheduling Method for Enhanced Quality of Experience in LTE Systems

摘要

In this paper a new approach to the resource allocation and scheduling mechanism that reflects the effect of user??s Quality of Experience is presented. The proposed scheduling algorithm is examined in the context of 3GPP Long Term Evolution (LTE) system. Pause Intensity (PI) as an objective and no-reference quality assessment metric is employed to represent user??s satisfaction in the scheduler of eNodeB. PI is in fact a measurement of discontinuity in the service. The performance of the scheduling method proposed is compared with two extreme cases: maxCI and Round Robin scheduling schemes which correspond to the efficiency and fairness oriented mechanisms, respectively. Our work reveals that the proposed method is able to perform between fairness and efficiency requirements, in favor of higher satisfaction for the users to the desired level. Index Terms ?? Scheduling, link adaptation, Long Term Evolution (LTE), pause intensity (PI)