Department of Electronics and Information Engineering, Korea University, Sejong 30019, Korea.
Department of Information and Communication Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsangbuk-do, Gyeongsan-si 38541, Korea.
Sensors (Basel). 2020 Sep 16;20(18):5288. doi: 10.3390/s20185288.
Recent innovation, growth, and deployment of internet of things (IoT) networks are changing the daily life of people. 5G networks are widely deployed around the world, and they are important for continuous growth of IoT. The next generation cellular networks and wireless sensor networks (WSN) make the road to the target of the next generation IoT networks. The challenges of the next generation IoT networks remain in reducing the overall network latency and increasing throughput without sacrificing reliability. One feasible alternative is coexistence of networks operating on different frequencies. However, data bandwidth support and spectrum availability are the major challenges. Therefore, cognitive radio networks (CRN) are the best available technology to cater to all these challenges for the co-existence of IoT, WSN, 5G, and beyond-5G networks.
近年来，物联网 (IoT) 网络的创新、增长和部署正在改变人们的日常生活。5G 网络在全球范围内广泛部署，对于物联网的持续增长至关重要。下一代蜂窝网络和无线传感器网络 (WSN) 为下一代物联网网络的目标铺平了道路。下一代物联网网络的挑战仍然在于在不牺牲可靠性的情况下降低整体网络延迟并提高吞吐量。一种可行的替代方案是在不同频率上运行的网络共存。然而，数据带宽支持和频谱可用性是主要挑战。因此，认知无线电网络 (CRN) 是应对所有这些挑战的最佳可用技术，可满足物联网、WSN、5G 及 5G 之后网络共存的需求。
