Theoretical analysis of BER performance of spread spectrum system using a huffman sequence over rayleigh fading channels

In this paper, we theoretically analyse the influence by intersymbol interference (ISI) on the bit error rate (BER) performance of the spread spectrum (SS) system using a real-valued Huffman sequence whose aperiodic correlation function has zero sidelobes except at the left and right shift-ends, under the quasi-static Rayleigh fading environment. The system can give the unified communication and ranging system because the output of a matched filter (MF) is the ideal impulse by overlap of 1 chip. As a result, the BER performance of the system under the quasi-static Rayleigh fading environment is improved with decrease in the absolute value of the shift-end value, is not influenced by ISI if the shift-end value is almost zero-value.