Work place: CTIEMT, Jalandhar, India
E-mail: harjit_nit@yahoo.co.in
Website:
Research Interests: Computer Networks, Network Architecture
Biography
Harjit Pal Singh received his Ph.D. from National Institute of Technology, Jalandhar and joined as Assistant Professor, Department of Electronics and Communication at CT Institute of Engineering, Management and Technology, Jalandhar. His area of interest is Voice over Internet Protocol, wireless communication, signal processing, digital filter design and wireless sensor networks. His research and teaching experience is 7 years. He has published 40 research papers in referred/indexed journals and international conferences. He has attended and presented his research findings in different countries such as France, UK, USA, Dubai, Hong Kong etc. He has guided 3 Ph.D. dissertations and guiding more than 12 M.Tech dissertations. He is Associate Editor and member of Editorial Board of various reputed journals. He is the reviewer of IEEE Network Magazine, Journal of Computer Application and Networks (Elsevier), Circuits, Systems, and Signal Processing (Springer), International Journal of Electronics (Taylor & Francis), Mosharaka Journals and Conferences, WSEAS Journals and Conferences, IAENG Journals and Conferences, SDIWC Journals and Conferences. He is the member of various scientific & technical societies such as The British Science Association Communication, CSTA/ACM, IAENG, IACSIT, UACEE, IRED, SDIWC, ISAET, IISRO.
By Harpreet Kaur Manoj Kumar Ajay K. Sharma Harjit P. Singh
DOI: https://doi.org/10.5815/ijcnis.2016.04.08, Pub. Date: 8 Apr. 2016
Pulse shaping filter when applied to the symbols generated for transmission in a bandwidth limited systems allow for bandwidth containment that reduces the Inter-Symbol Interference (ISI) arising from multipath signal reflections which further minimizes the probability of errors at the receiver. Wavelets encompass the advantages of transforming and mapping data onto orthogonal subcarriers with optimal flexibility as well as less complexity which leads to increase the bandwidth efficiency of an Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper Square Root Raised Cosine (SRRC) a pulse shaping technique when applied to Discrete Wavelet Transform (DWT) based OFDM system in mobile WiMax is simulated and its performance analysis in terms of Bit Error rate (BER) as a function of Signal to Noise Ratio (SNR) is investigated for various modulation schemes under AWGN channel. The results obtained show that SRRC filter offers to significantly improve BER for the given SNR and enhance the performance of physical layer in Mobile WiMax. The performance measurements and analysis is done in the simulation developed in MATLAB.
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