Beyond Fifth Generation (B5G) network aims to provide a very high data rate with minimum latency to an ultra-dense user environment. To achieve this demand, the possible approaches are network-centric and device-centric approach. In a network-centric approach, a new frequency band is introduced, and the existing network infrastructure is modified. The device-centric approach does not require any modification in the existing network infrastructure, and the demand of B5G network is achieved through optimum resource allocation methodology. Device-to-Device (D2D) is an effective device-centric approach that supports the B5G network. In this paper, we propose a dynamic sectorization technique in which eNodeB (eNB) varies the number of sectors dynamically in the network and allocates the Resource Block (RB) to D2D users. Sectoring improves Signal-to-Interference-Noise-Ratio (SINR) and network performance. We derive an expression for the probability of successful transmission and threshold to make a decision on the number of sectors based on available RBs and D2D users in the network. Further, dynamic sectoring helps eNB to perform parallel processing for reducing the denial of the request. Simulation results validate the probability of successful transmission of D2D pairs with available RBs and the effectiveness of parallel processing to reduce the denial of request with improved SINR.

超越第五代（B5G）网络旨在为超密集用户环境提供极高的数据速率和最小的延迟。为了实现这一需求，可能的方法是以网络为中心和以设备为中心的方法。在以网络为中心的方法中，引入了一个新的频段，并修改了现有的网络基础结构。以设备为中心的方法不需要对现有网络基础结构进行任何修改，并且B5G网络的需求是通过最佳资源分配方法来实现的。设备到设备（D2D）是一种有效的以设备为中心的方法，支持B5G网络。在本文中，我们提出了一种动态扇区化技术，其中，eNodeB（eNB）在网络中动态更改扇区数，并为D2D用户分配资源块（RB）。扇区改善了信噪比（SINR）和网络性能。我们根据网络中可用的RB和D2D用户，得出成功传输的概率和阈值的表达式，以决定扇区数。此外，动态扇区划分有助于eNB执行并行处理以减少对请求的拒绝。仿真结果验证了具有可用RB的D2D对成功传输的可能性以及通过改进SINR减少请求拒绝的并行处理的有效性。动态扇区划分有助于eNB执行并行处理以减少对请求的拒绝。仿真结果验证了具有可用RB的D2D对成功传输的可能性以及通过改进SINR减少请求拒绝的并行处理的有效性。动态扇区划分有助于eNB执行并行处理以减少对请求的拒绝。仿真结果验证了具有可用RB的D2D对成功传输的可能性以及通过改进SINR减少请求拒绝的并行处理的有效性。