摘要
在蜂窝网络覆盖下的D2D通信场景中,D2D对的距离并不是一个确定的值。为了解决D2D用户由于距离过大不能建立直接通信链路的问题,提出一种协作传输CRNG方案。使用蜂窝用户作为D2D对的信息中继,解码并转发D2D用户的信号。该方案在保证中继蜂窝用户的通信质量基础上提升了D2D对的吞吐量。仿真结果表明,CRNG传输方案能够提高D2D用户的数据速率及D2D对的接入率,改善蜂窝系统的服务性能。
In the D2D communication scenario of the cellular network,it is not a certain value for the distance of the D2D pair.In order to solve the problem that a direct communication link can t be established by the D2D users,a cooperative transmission CRNG scheme is proposed in this paper.The cellular user was used as the information relay of the D2D pair to decode and forward the signal of the D2D users in the scheme.The throughput of the D2D pair was improved based on ensuring the communication quality of the relay cellular user.The simulation results show that the data rate of D2D users and the access rate of D2D pairs can be improved in the CRNG transmission scheme,and the service performance of cellular systems is also enhanced.
作者
张胜南
王斌
石永嵩
王文鼐
Zhang Shengnan;Wang Bin;Shi Yongsong;Wang Wennai(College of Telecommunications&Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,Jiangsu,China;Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,Jiangsu,China)
出处
《计算机应用与软件》
北大核心
2021年第8期131-137,共7页
Computer Applications and Software
基金
国家自然科学基金项目(61372125,61401234)
江苏省科技支撑计划(工业)项目(BE2013019)
南京邮电大学宽带无线通信与传感网技术教育部重点实验室开放研究基金项目(NYKL201108)。
