The monumental success over the years, in wireless communication and mobile communication have overcome the challenges such as fading, multipath, interferences and spectrum limitations due to the advancement in the communication system with higher peak data rate with reduced latency thus most of research work are being focused from long term evolution (LTE) along with reduced delay, area and power consumption. Narrowband Internet of Things (NB-IoT) is an emerging domain with a vast range of applications. The conventional NB-IoT network uses orthogonal frequency division multiplexing (OFDM) for data transmission over the communication channel. LTE downlink physical layer has three control channels which are PCFICH, PDCCH, and PHICH uses in channel processing. The processing step involves scrambling, modulation, layer mapping, precoding and resource element mapping at the transmitter. The receiver end comprising of demapping from the source elements and detection of data occurs in physical downlink channels of LTE. 5G will make sure that, one can download an app of any MB in size at greater speed when compared with existing system. The entire scheme has been simulated using Model sim and realized in Plan Ahead Tool in Virtex 5 tool.

多年来，在无线通信和移动通信领域取得的巨大成功克服了诸如衰落，多径，干扰和频谱限制之类的挑战，这是由于通信系统的进步以及更高的峰值数据速率和减少的等待时间所致，因此，大多数研究工作正在进行中专注于长期演进（LTE），并减少了延迟，面积和功耗。窄带物联网（NB-IoT）是一个新兴领域，具有广泛的应用程序。传统的NB-IoT网络使用正交频分复用（OFDM）进行通信信道上的数据传输。LTE下行链路物理层具有三个控制信道，它们是在信道处理中使用的PCFICH，PDCCH和PHICH。处理步骤包括加扰，调制，层映射，发射机处的预编码和资源元素映射。包括从源元素解映射和数据检测在内的接收器端发生在LTE的物理下行链路信道中。5G将确保与现有系统相比，可以更快地下载任何MB大小的应用程序。整个方案已使用Model sim进行了仿真，并在Virtex 5工具中的Plan Ahead工具中实现。