9th International Conference on "Innovations in Electronics and Communication Engineering (ICIECE-2021)” aims to provide an opportunity for researchers, scientists, technocrats, academicians and engineers to exchange their innovative ideas and research findings in the field of Electronics and Communication Engineering. The conference will provide interactive platform for the participants and other delegates from the academic and industry segments across India and globe to share their research experience, experiment break through or vision-trends. The first seven editions of this conference: ICIECE - 2012, 2013, 2014, 2015, 2016, 2017, 2018 and 2019 were successfully conducted with more than 2000 delegates from India and abroad. Selected papers of last three editions ICIECE-2019, 2018, 2017 and 2016) are published by Springer Lecture notes. In addition to large number of research papers received from India, huge number of research papers were also received from across the global including USA, UK, Canada, Saudi Arabia, Australia, Malaysia, Japan, Germany, Ethiopia, Bangladesh and many more.