Abstract: The main goal of future wireless networks is using wireless spectrum resources as efficently as possible and providing quality of experience guarantee for the users. Based on this, this paper presents a QoE-based multi-service resource allocation algorithm in LTE systems. Firstly, QoE is introduced to calculate user priority based on channel information, QoS requirements and fairness. In particular, a minimal QoE constraint is introduced to ensure QoE requirements of RT users. Secondly, a suboptimal resource block allocation algorithm is proposed to solve the complicated resource allocation optimization problem. The algorithm is divided into two steps： ensuring minimum QoE requirements for RT user; maximizing system weighting and rate. The simulation results show that compared with the existing RT/NRT resource allocation algorithm, the proposed algorithm improves the performance of user packet loss rate, average QoE and cell spectrum efficiency.

Key words: LTE network, Quality of Experience（QoE）, resource allocation, multi-service

摘要： 高效地利用无线频谱资源和保证用户体验质量是未来无线网络的主要目标。基于此，提出一种基于QoE的LTE多业务资源分配算法。在考虑信道信息、QoS要求及公平性的基础上，引入QoE来计算的用户优先级。特别的，引入最小QoE约束来保证RT用户QoE要求；提出一种次优资源块（Resource Block，RB）分配算法来解决复杂的资源分配优化问题，该算法主要分为两步：保证RT用户最小QoE要求；最大化系统加权和速率。仿真结果表明，相较现有的RT/NRT资源分配算法，该算法在用户分组丢失率、平均QoE和小区频谱效率方面性能都有所提升。

关键词: LTE网络, 体验质量, 资源分配, 多业务