tailieunhanh - Comparing PSWF, hermite pulses for high speed communication using N-PSM

Transceiver system based on N-PSM using PSWF and Hermite has been implemented in MATLAB and compared in this paper. Performance evaluation of the N-PSM is carried out over Additive White Gaussian Noise (AWGN) channel for different values of N to measure Bit Error Rate (BER). It has been found that a combination of PSWF and Hermite pulses can be used for highspeed modulation if these pulses are orthogonal to each other since both the types of pulses achieve same bit error rate over AWGN. | International Journal of Computer Networks and Communications Security VOL. 5, NO. 5, MAY 2017, 90–95 Available online at: E-ISSN 2308-9830 (Online) / ISSN 2410-0595 (Print) Comparing PSWF, Hermite Pulses For High Speed Communication Using N-PSM P. JADHAV1 and J. GOMES2 1, 2 St. Francis Institute of Technology Mumbai, Department of Electronics and Telecommunication. 1 ABSTRACT Wireless technologies provide quick and easy access to information. Data rate/throughput is very important for multimedia communication. High-speed communication is recently achieved by using technologies such as UWB, OFDM etc. N-Dimensional Pulse Shape Modulation (N-PSM) is one of the modulation technique used to achieve high data rate based on the family of orthogonal pulses . Prolate Spheroidal Wave Function (PSWF) and Hermite waveforms. Transceiver system based on N-PSM using PSWF and Hermite has been implemented in MATLAB and compared in this paper. Performance evaluation of the N-PSM is carried out over Additive White Gaussian Noise (AWGN) channel for different values of N to measure Bit Error Rate (BER). It has been found that a combination of PSWF and Hermite pulses can be used for highspeed modulation if these pulses are orthogonal to each other since both the types of pulses achieve same bit error rate over AWGN. Keywords: N-PSM Technique, Transceiver, PSWF, Hermite, Correlation. 1 INTRODUCTION Wireless communication systems demand transmission with large data, fast rate and to many users at once. So, rapid growth in wireless communication, allowing us to use applications such as multimedia communication, video teleconferencing, military application etc [1]. Modulation performs main role in communication. There are some traditional modulation techniques like Amplitude Shift Keying (ASK), Phase shift keying (PSK), Frequency Shift Keying (FSK), and Pulse Position Modulation (PPM), These techniques are not suitable for high data .