Title :
Spread Spectrum Modified MPPM System using Quadriphase Sequences
Author :
Ono, Fumie ; Habuchi, Hiromasa ; Ohuchi, Kouji
Author_Institution :
Tokyo Univ. of Sci.
Abstract :
In this paper, the spread spectrum modified multipulse pulse position modulation (SS-MMPPM) system is considered. The system uses quadriphase sequences that enhance even-shift orthogonal sequences (E-sequences) as spreading code. Moreover, the frame synchronization methods of the SS-MMPPM system are considered, the method is classified into two methods: the method with the preamble signal (Type A) and the method without the preamble signal (Type B). In this paper, the following performances are evaluated: the data transmission rate, the synchronization performance and the efficiency. Consequently, the data transmission rate of type B is higher than that of the type A. Moreover, the probability of frame detection of type B is better than that of type A
Keywords :
performance evaluation; pulse position modulation; spread spectrum communication; E-sequence; even-shift orthogonal sequences; multipulse pulse position modulation; quadriphase sequences; spread spectrum modified MPPM system; Bandwidth; Data communication; Infrared detectors; Modulation coding; Optical modulation; Optical pulses; Performance evaluation; Pulse modulation; Spread spectrum communication; Transmitters;
Conference_Titel :
Communication systems, 2006. ICCS 2006. 10th IEEE Singapore International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0411-8
Electronic_ISBN :
1-4244-0411-8
DOI :
10.1109/ICCS.2006.301499
