异构网络中支持终端直通的联合模式资源复用算法

发布时间：2018-03-13 22:01

本文选题：终端直通通信　切入点：用户优先级　出处：《沈阳工业大学学报》2017年04期 　论文类型：期刊论文

【摘要】：针对异构蜂窝网络中终端直通(D2D)通信复用频谱资源导致同频干扰,并影响系统通信性能的问题,提出了一种基于联合模式的支持终端直通的资源复用算法.为了综合考虑异构网络中蜂窝用户和D2D用户需要并平衡两类不同用户的资源分配,该算法在确定D2D通信限制距离的基础上,联合蜂窝与D2D两种模式构建CU-D2D组合集,以其加权吞吐量增益为用户优先级,并据此进行无线资源分配,从而实现了异构蜂窝网络环境下频谱资源的优化分配.结果表明,该算法在保证蜂窝用户传输速率的同时,有效地改善了D2D用户的通信速率,从而整体性地提升了异构蜂窝网络的系统通信性能.
[Abstract]:In order to solve the problem that the multiplexing spectrum resources of terminal through D2D) in heterogeneous cellular networks lead to the same frequency interference and affect the communication performance of the system. In this paper, a joint mode based resource reuse algorithm is proposed to support terminal pass-through. In order to comprehensively consider the needs of cellular users and D2D users in heterogeneous networks and balance the resource allocation of two different types of users. On the basis of determining the limit distance of D2D communication, the algorithm combines the cellular and D2D patterns to construct the CU-D2D combination set. The weighted throughput gain is regarded as the priority of the user, and the wireless resources are allocated accordingly. Thus, the optimal allocation of spectrum resources in heterogeneous cellular networks is realized. The results show that the proposed algorithm not only guarantees the transmission rate of cellular users, but also improves the communication rate of D2D users effectively. Thus, the system communication performance of heterogeneous cellular network is improved.
【作者单位】：新疆财经大学计算机科学与工程学院;
【基金】：国家自然科学基金资助项目(61163066,71561025) 新疆高校科研计划培育项目(XJUEDU2014S042) 新疆自然科学基金资助项目(2013211A032)
【分类号】：TN929.5

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