Performance Analysis of a Dual M-ary Orthogonal Spread Spectrum System Based on Orthogonal Cyclic Codes
Yao Jun, Kechu Yi · Telecommunication Engineering · 2006
Based on orthogonal cyclic codes,a dual M-ary orthogonal SS(Spread Spectrum) system scheme is presented to transmit high rate data.It can reduce the difficulty of selecting PN codes and increase user numbers in the system.Using FFT scheme in receiver,the computational complexity of de-spreading is reduced greatly.The theoretical BER performance of the system in AWGN and Rayleigh fading channels is analyzed and the computer simulation results are provided.