Title :
Performance analysis of different PN sequence and Orthogonal Spreading sequences in DS-SS
Author :
Gupta, Arpan ; Bhaskar, Lala ; Kumar, Pranaw ; Gautam, Jimmy
Author_Institution :
Dept. of ECE, Amity Sch. of Eng. & Technol., Noida, India
Abstract :
Pseudo-Random or pseudo-noise and Orthogonal Spreading sequences are widely used in the Wideband Code Division Multiple Access (WCDMA) systems using Rake receiver. This paper shows the practical aspect for direct sequences DSCDMA and also the orthogonal codes are discussed. This paper compares the execution results of the direct sequence spread spectrum-baseband QPSK modulation with various types of short codes: Barker, Hadamard, Kasami, by measuring the BER (Pe) by using autocorrelation and cross correlation functions. The simulation results shows the system using Barker code is the best system with probability of error (Pe) for Barker code is 4.9 ×10 -4 at 10 dB signal-to-noise ratio (SNR)after comparing with other codes.
Keywords :
Hadamard codes; code division multiple access; correlation methods; error statistics; orthogonal codes; quadrature phase shift keying; random sequences; spread spectrum communication; BER; Barker codes; DS-SS; DSCDMA; Hadamard codes; Kasami codes; PN sequence; Rake receiver; SNR; WCDMA systems; autocorrelation functions; cross correlation functions; direct sequence spread spectrum-baseband QPSK modulation; orthogonal codes; orthogonal spreading sequences; performance analysis; probability of error; pseudonoise; pseudorandom; short codes; signal-to-noise ratio; wideband code division multiple access systems; Bit error rate; Correlation; Multiaccess communication; Phase shift keying; Receivers; Signal to noise ratio; Transmitters; DS-SS; Pseudo-noise codes; QPSK; auto-correlation; cross-correlation; orthogonal codes;
Conference_Titel :
Confluence The Next Generation Information Technology Summit (Confluence), 2014 5th International Conference -
Conference_Location :
Noida
Print_ISBN :
978-1-4799-4237-4
DOI :
10.1109/CONFLUENCE.2014.6949258
