终端直通(device-to-device,D2D)通信技术已成为第五代移动通信(5G)中的关键技术。资源分配直接关系着D2D通信的质量,是D2D通信中的重要研究内容。该文研究了正交频分多址接入(orthogonal frequency division multiple access,OFDMA)蜂窝网络中的D2D通信,用统计服务质量(quality-of-service,QoS)保证来刻画用户的时延需求,在保证蜂窝用户的干扰门限要求下,以最大化统计带QoS保证的系统吞吐量为目标,提出了有效的资源分配算法。通过Lagrange方法求解原始优化问题,提出了交替式优化算法和渐进凸近似算法。仿真表明,所提方案能有效提升系统性能。
【英文摘要】
Device-to-device(D2 D) communications are a key technology in fifth generation(5 G)cellular networks.Resource allocation is critical to the D2 Dcommunication performance and is a key research topic.This study considers D2 D communications in orthogonal frequency division multiple access(OFDMA)based cellular networks where the user delay requirements are characterized by the statistical quality-of-service(QoS)provisioning.An effective resource allocation scheme is given to maximize the QoS-guaranteed system ...