Title :
Theoretical analysis of M-CSK/CDMA system in optical wireless channel
Author :
Kozawa, Yusuke ; Habuchi, Hiromasa
Author_Institution :
Grad. Sch. of Sci. & Eng., Ibaraki Univ., Hitachi, Japan
Abstract :
In this paper, M-CSK with extended prime code sequence to enhance a data transmission rate of CSK is considered. Moreover, the bit error rate (BER) performance of M-CSK/CDMA is evaluated by taking into account scintillation, background-noise, avalanche photo-diode (APD) noise, thermal noise, and signal dependence noise through theoretical analysis. It is shown that the data transmission rate of the M-CSK system is better than that of the CSK system using extended prime code sequences. However, the BER performance of the M-CSK system is degraded by increasing the number of selected extended prime code sequences.
Keywords :
avalanche photodiodes; code division multiple access; data communication; error statistics; interference (signal); optical modulation; sequential codes; thermal noise; wireless channels; APD noise; BER; M-CSK-CDMA system; avalanche photodiode noise; background-noise; bit error rate; code shift keying; code-division multiple-access system; data transmission; optical wireless channel; prime code sequence; signal dependence noise; thermal noise; Bit error rate; Data communication; Multiaccess communication; Noise; Optical receivers; Optical transmitters; Wireless communication;
Conference_Titel :
Information Theory and its Applications (ISITA), 2010 International Symposium on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-6016-8
Electronic_ISBN :
978-1-4244-6017-5
DOI :
10.1109/ISITA.2010.5649647
