5G and future wireless Internet: Challenges and emerging technologies

Abstract

Wireless devices are becoming more diverse with not just over 7 billion wireless phone sbut also a much larger number of sensors, machines contributing to machine to machine communication, and practical everything in the Internet of Things (IoT). With an anticipated growth to 100 billion IoT devices by year 2025, more dense radio networks are emerging. Both data and signaling from mobile devices are expected to grow exponentially over the next five or more years. The cellular networks serving cellular phones and mobile devices globally have employed centralized control with different network functions arranged in a hierarchy. On the other hand, the Internet standards which is originally built for fixed network users is working on numerous new and disruptive technologies such as QUIC transport, low-latency communication, TLS1.3, and streams in HTTP/2 to better serve both wireline and wireless users. Meanwhile networks are being transformed with software defined networking as well as network function virtualization and cloudification as the technologies in communication technologies and information technologies are merging. Standards to define 5G technologies are underway. Whether 5G Wireless is able to provide the infrastructure to harness many communication technologies with very diverse requirements in different network slices will be a key factor tod eployment. Many technologies are being harnessed with numerous opportunities.