Wireless systems and standards are now progressing toward the implementation of fifth generation (5G) to combat with an expected and explosive growth of demands of wireless services in future. Consequently, wireless interoperability for microwave access (WiMAX) with orthogonal frequency division multiplexing (OFDM) technology at its physical layer is being utilized for the uplink and downlink transmission to afford the high spectral efficiency in fading environments. However, the 5G implementation requires additional improvements to meet the futuristic stress. This work proposes an innovative solution that combines WiMAX system with multiple input multiple output (MIMO) technology to meet the required elevated data rates as desired by the growing application needs of 5G. MIMO is capable to fulfil the vision of 5G to realize a huge number of base stations equipped with a large number of terminals to be served in the same time-frequency resource without severe inter-user interference. Furthermore, the proposed system is demon- strated incorporation with discrete wavelet transform (DWT), and fractional Fourier transforms (FrFTs) in the physical layer of the WiMAX system. The evaluated outcomes exemplify a considerable improvement in bit error rate (BER) performance in contrast with the earlier reported work.
Frontiers of Optoelectronics in China
Lavish Kansal is a passionate researcher in the field of wireless communication. He received his B.Tech degree in Electronics and Communication Engineering from PTU, Jalandhar in 2009 and M.E. degree in Electronics and Communication Engineering from Thapar University, Patiala in 2011. He is currently pursuing his Ph.D. from IKG PTU Jalandhar. He is working as the School of Electronics and Electrical Engineering, Lovely Professional University, Phagwara, India. He has published over 65 papers in refereed journals and conferences (India and Abroad). His research area includes digital signal processing, digital communication & wireless communication. E-mails: firstname.lastname@example.org, email@example.com;Di\ Vishal Sharma is presently working as Associate Professor in the Department of Electronics and Communication Engineering at Shaheed Bhagat Singh State Technical Campus, Ferozepur, Punjab (India). He received his M.Tech. and Ph.D. degrees in Electronics and Communication Engineering. He has published over 84 papers in refereed journals and conferences (India and Abroad). He has affiliation with various program committees for different Intemational/National Conferences and is on the review board of various International journals of repute. His area of curiosity is integrated optical and wireless communication systems. E-mail: firstname.lastname@example.org;Dr. Jagjit Singh Malhotra is a passionate researcher in the field of optical and wireless communication. He started his career as Lecturer in 1994 and is now working as Associate Professor and in Department of Electronics and Communication Engineering at DAV Institute of Engineering & Technology, Jalandhar. His current research area is multichannel high capacity optical links and wireless networks. He has more than 45 papers of international research publications to his credit and has authored 4 books. E-mail:email@example.com.