Millimetre wave bands for 5G wireless communications

Current interest in the millimeter wave technology is motivated by both old and new factors. Over the past decade, regulators have allocated up to 9 GHz of Spectrum near 60 GHz for license-exempt world-wide use. The emergence of numerous high-speed applications, including uncompressed HDTV, uncompressed multi-video streaming, very high-speed -file downloading and now potential use in wireless access and backhaul for future 5G heterogeneous networks, has provided the motivation for developing the technologies required to exploit this bandwidth. Moreover recent advances in realizing low-cost CMOS technology suitable for use at such high frequencies, improved algorithms for adaptively steering directive antenna beams; protocols for medium access control (MAC) and implementation of LDPC coding to improve link margins have made such exploitation a commercially viable prospect. In this talk we present technical challenges and opportunities for the application of millimeter-wave technologies in 5G era. It will be seen that it is a viable technology to provide multi-Gigabits per second access to mobile users and sustain the traffic growth.