Future Wireless Communication Networks: Prospects and Challenges

Abstract

The paper deals with the current scenario and future prospects of the 5G system along with the challenges it faces. The fourth-generation wireless communication systems are already implemented or going to be implemented in many countries. However, there are still some challenges facing 4G, such as spectrum problem, power consumption and poor coverages. Mobile phones are moving faster to provide the user the same or even better experience than the personal computer. It is expected that from mobile communication point of view, we should have a higher data transmission rate compared to wire line network. Also, the expectation is for seamless connectivity and access. The wireless designers have started research on fifth-generation wireless systems that are expected to be deployed after 2020. In this paper, various promising technologies for future wireless communication system such as huge multiple input and multiple output system, power efficient communications and cognitive radio network are discussed. Existing and future challenges are also discussed.

Keywords: Wireless communication, MIMO systems, Femto cell, Data rate, Spectrum, Fading