Evaluating the Performance of Multicast Resource Allocation Policies over LTE Systems

摘要

This paper addresses a multi-criteria decision method properly designed toeffectively evaluate the most performing strategy for multicast contentdelivery in Long Term Evolution (LTE) and beyond systems. We compared thelegacy conservative-based approach with other promising strategies inliterature, i.e., opportunistic multicasting and subgroup-based policiestailored to exploit different cost functions, such as maximum throughput,proportional fairness and the multicast dissatisfaction index (MDI). We providea comparison among above schemes in terms of aggregate data rate (ADR),fairness and spectral efficiency. We further design a multi-criteria decisionmaking method, namely TOPSIS, to evaluate through a single mark the overallperformance of considered strategies. The obtained results show that the MDIsubgrouping strategy represents the most suitable approach for multicastcontent delivery as it provides the most promising trade-off between thefairness and the throughput achieved by the multicast members.