Device to Device communication is an important aspect of the fifth-generation(5G) and beyond fifth-generation (B5G) wireless networks. 5G facilitates network connectivity among a large number of devices. This tremendous growth in the number of devices requires a large number of spectrum resources to support a variety of applications and also lays a huge burden on the Base Station. D2D skips the need to forward the data to the Base Station and helps the devices to take part in direct Peer-to-Peer (P2P) transmission. This enables high-speed data transmission, efficient information transmission with improved latency and most importantly is used to offload the traffic that is laid on the Base Station. D2D has many practical issues and challenges that are briefly explained in this paper, out of which resource allocation is the main area of focus as it plays an important role in the performance of the system. The optimal allocation of resources such as power, time and spectrum can improve the system performance. Therefore, in order to identify the open research issues in the field of resource allocation in D2D communication, a detailed survey is needed. In this paper, various resource allocation algorithms and methodologies have been seriously analysed and evaluated based on the degree of involvement of the Base Station to figure out the research gap and to provide a strong theoretical basis for the research problems related to resource allocation in D2D communication.

设备到设备通信是第五代（5G）以及第五代（B5G）无线网络之外的重要方面。5G促进了大量设备之间的网络连接。设备数量的这种巨大增长需要大量频谱资源来支持各种应用，并且给基站带来了沉重负担。D2D无需将数据转发到基站，并帮助设备参与直接的点对点（P2P）传输。这实现了高速数据传输，具有改进的延迟的高效信息传输，并且最重要的是用于卸载基站上的流量。D2D存在许多实际问题和挑战，本文对此进行了简要说明，资源分配是重点关注的领域，因为资源分配在系统性能中起着重要作用。诸如功率，时间和频谱之类的资源的最佳分配可以提高系统性能。因此，为了识别D2D通信中资源分配领域中的开放研究问题，需要进行详细的调查。本文根据基站的参与程度，对各种资源分配算法和方法进行了认真的分析和评估，以找出研究差距，为D2D通信中与资源分配有关的研究问题提供有力的理论依据。 。因此，为了识别D2D通信中资源分配领域中的开放研究问题，需要进行详细的调查。本文根据基站的参与程度，对各种资源分配算法和方法进行了认真的分析和评估，以找出研究差距，为D2D通信中与资源分配有关的研究问题提供有力的理论依据。 。因此，为了识别D2D通信中资源分配领域中的开放研究问题，需要进行详细的调查。本文根据基站的参与程度，对各种资源分配算法和方法进行了认真的分析和评估，以找出研究差距，为D2D通信中与资源分配有关的研究问题提供有力的理论依据。 。