Smart Engineering Tutorials consists of Video Lectures of Communication System and other ECE subjects. These tutorials will be very helpful to B.Tech/ B.E. students of GGSIPU, AKTU, UTU and other technical universities. The videos will contain numericals and solutions of previous year papers which will give a better understanding of the subject.<br /><br />Students can refer these tutorials and improve their concepts of Communication Systems and other subjects.<br /><br />I, Ranjeeta Singhal, have done B.Tech. in EC from UPTU, Lucknow in 2004 and M.E. in ECE from NITTTR Chandigarh, Panjab University in 2016. I am currently working as Asst Professor at NIEC, Delhi and have been associated with various engg. colleges and have a relevant teaching experience of 11 years. My M.E. Thesis was on "Channel Modelling for Densely Populated Urban Areas with High Rise Buildings". I have presented various research papers in National and International Conferences and some have been published in International Journals.