In a wireless self-organizing and the network-assisted Device-to-Device (D2D) network, proximal Device Discovery (DD) plays a noteworthy role. It is the foundation for self-governing, coverage expansion and performance improvement for example, cooperative and multi-hop transmission. Energy efficiency and discovery accuracy are critical performance measures for proximal DD. A novel DD procedure using Non-orthogonal Multiple Access based Multi-user Shared Access (MUSA) is proposed in this article for network-assisted D2D communication. The proposed shared access scheme uses a complex spreading pattern to accommodate dense device discovery and enhance discovery distance in the cellular systems. A discovery signal shared access method with supplementary schemes for multi-user detection is also designed. With MUSA and its spreading pattern demodulation, 12% enhanced energy efficiency, and 98% overall improved accuracy is achieved contrasted with the customary DD methods.

在无线自组织和网络辅助的设备到设备（D2D）网络中，近端设备发现（DD）发挥了重要作用。它是自治，覆盖范围扩展和性能改进（例如协作和多跳传输）的基础。能源效率和发现准确性是近端DD的关键性能指标。本文提出了一种基于非正交多路访问的多用户共享访问（MUSA）的新颖DD程序，用于网络辅助D2D通信。所提出的共享访问方案使用复杂的扩展模式来适应密集的设备发现并增强蜂窝系统中的发现距离。还设计了具有补充方案的发现信号共享访问方法，用于多用户检测。利用MUSA及其传播模式解调，