Review of Dynamic Spectrum Sharing: Techniques and Challenges

It appears that the frequency bands used by the current mobile network are becoming increasingly scarce, making it impossible for it to meet the overwhelming demand brought on by the introduction of 5G and the rapidly growing popularity of IOT devices. It is evident that due to spectrum shortage, the traditional method of statically allocating spectrum to particular services or users became systematically inefficient and unsustainable. As a result, it is time for a wireless communication system to emerge that allows multiple users or wireless systems to share radio frequency spectrum in real-time and efficiently. It's DSS ( dynamic spectrum sharing), a revolutionary approach that allows different wireless technologies to dynamically share the same spectrum resources based on demand and usage patterns. This dynamic allocation is typically facilitated by advanced spectrum management techniques and intelligent algorithms that we are going to provide in this article in addition to the challenges that this technology has to face.