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针对融合IEEE802.11ad的LTE-A异构网络中的用户接入体验质量(quality of experience,QoE)问题,本文通过引入接入竞争时间窗口函数,构造一种适用于异构网络用户接入退避行为的3DMarkov链模型,考虑不同业务类型用户体验质量,分析系统服务质量(quality of service,QoS),采用典型的平均意见得分(mean opinion score,MOS)评价方法映射得到用户Qo E性能指标.计算机仿真结果表明,在系统带宽一定情形下,融合IEEE802.11ad的LTE-A异构网络可以提高包括吞吐量、时延、丢包率等指标的系统QoS和包括MOS的用户QoE.
Aiming at the quality of experience (QoE) problem in the LTE-A heterogeneous network that is converged with IEEE802.11ad, this paper introduces a contention access time window function to construct a new type of user access avoidance Behavior of the 3DMarkov chain model, considering the quality of user experience of different service types, analyzing system quality of service (QoS), and using the typical mean opinion score (MOS) evaluation method to obtain the user QoE performance index. The simulation results show that under the certain system bandwidth, the LTE-A heterogeneous network that incorporates IEEE802.11ad can improve the system QoS and QoE including MOS users, including the throughput, delay and packet loss rate.