摘要
为了改善不同D2D用户在资源复用模式下的服务质量瓶颈,以最大化系统吞吐率为目标建立资源复用分配模型,在资源需求量约束下,D2D用户通过复用多个蜂窝用户上行链路资源的方式来提升性能收益。同时在模型求解过程中,提出一种次优的奖惩机制,通过动态激励或约束不同资源差量的D2D用户获取RB资源,以降低问题复杂度。仿真实验表明,奖惩算法在牺牲少量系统吞吐率性能的基础上,能够较好地满足多个D2D用户的服务质量需求,使系统处于相对公平的资源分配状态。
In order to improve the quality of service for D2 D user in resource sharing problem,this paper proposed a resource sharing scheme that maximize the system throughput for D2 D communications underlay LTE network,which one D2 D user could reuse the uplink resources of multiple cellular users. In addition,it designed a novel incentive mechanism to encourage or constraint resource allocation process to simplify the complexity of system model. The incentive mechanism dynamically depending on current resource differential needs of the D2 D users so as to balance the relationship between the supply and demand of resource. Simulation results show that,under a small amount of loss rate for system throughput,incentive based resource sharing scheme can better alleviate hunger problem and meet the requirements quality of service for D2 D users.
出处
《计算机应用研究》
CSCD
北大核心
2016年第6期1818-1821,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(41372375
41304033)
中央高校基本科研业务费专项基金资助项目(2013G3264004)
关键词
D2D
资源复用分配
奖惩加权
服务质量
D2D
resource sharing
incentive mechanism
quality of services
