Vol.:(0123456789) Wireless Personal Communications https://doi.org/10.1007/s11277-018-6077-7 1 3 Novel Spectral Efcient Technique for MIMO‑OFDM Channel Estimation with Reference to PAPR and BER Analysis Renuka Bhandari 1,2  · Sangeeta Jadhav 2 © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract With emerge of increasing research in domain of future wireless communications, mas- sive multiple input multiple output (MIMO) attracted most of researchers interests. Mas- sive MIMO is nothing but high speed wireless communication standards. The performance of MIMO systems is based on techniques used for channel estimation. Efcient channel estimation leads to spectral efcient wireless communications. There are number of chan- nel estimation techniques presented recently in literature with pros and cons. The recent method shows the spectral and bit error rate (BER) efciency, however apart from this, there is need of improving the peak to average power ratio (PAPR). Recently we proposed, novel channel estimation method as the existing channel estimation techniques failed to efectively solve the inter symbol interference (ISI) problem. The presence of ISI in MIMO-OFDM may leads to worst performance. Our proposed blind channel estimation is combined with independent component analysis (ICA) hence this method is called as hybrid ICA (HICA) to minimize the ISI efect. The extensive simulation analysis of pro- posed HICA required to claiming the scalability as well as reliability. In this paper, pro- posed study on additional performance metrics such as PAPR and computational costs (energy) along with BER and spectral efciency performances. The result claims that HICA is not improving the PAPR and energy performances signifcantly. Keywords MIMO-OFDM · Channel estimation · Spectral efciency · Error rates · ICA · Interference · PAPR 1 Introduction Since from last 5 years, there is continuously growing requirements for higher data rates on constrained resources and available bandwidth. This demand of higher data rate is resulting into increased interest of researchers to initiate the working towards 5G (ffth generation) wireless communications [1]. For such future wireless communications, * Renuka Bhandari bhandarirenuka33@gmail.com 1 Department of E&TC, Dr. D.Y. Patil Institute of Engineering and Technology, Pimpri, Pune 411018, India 2 Army Institute of Technology, Pune 411015, India