摘要
长期演进系统(long term evolution,LTE)中的分组调度算法需要满足一定的QoS。针对最大权值时延优先算法(modified large weighted delay first,M-LWDF)在用户公平性方面的缺陷,提出了基于线性优先级和非线性优先级的M-LWDF算法,以达到提升用户公平性的目的。仿真结果表明,所提出的算法能够在牺牲少量系统吞吐量的情况下,较大程度地改善用户公平性和业务的丢包率。
In LTE system,the QoS should be satisfied by packet scheduling algorithm.To improve the fairness between users in the algorithm of modified large weighted delay first(M-LWDF),two novel packet scheduling algorithms are proposed in this paper,linear and non-linear priority adjusting scheme respectively.Results show that the performance of user fairness and packet loss ratio can be improved effectively;moreover,only very little network resources will be consumed.
出处
《重庆邮电大学学报(自然科学版)》
CSCD
北大核心
2013年第1期85-89,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
国家自然科学基金(61001105
60972069)~~