Title :
Performance of a sequence inverse keyed CDMA system in an indoor wireless infrared channel
Author :
Kwak, Jin Sam ; Lee, Jae Hong
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
A sequence inverse keyed (SIK) code-division multiple-access (CDMA) system is proposed for an indoor wireless infrared channel. The proposed system employs an m-sequence as a signature sequence. On-off keying (OOK) is used as a modulation scheme. The bit error rate of the proposed system is evaluated by analysis and computer simulation. It is shown that the SIK OOK-CDMA system is more robust against multi-user interference than the OOK-CDMA system with an optical orthogonal code (OOC) in an indoor environment and the former has lower complexity than the latter due to zero-valued threshold detector in the receiver
Keywords :
amplitude shift keying; code division multiple access; digital simulation; error statistics; light interference; m-sequences; multiuser channels; optical links; optical modulation; optical receivers; optical signal detection; BER; IR channel; SIK OOK-CDMA system; bit error rate; code-division multiple-access; computer simulation; indoor wireless infrared channel; m-sequence; modulation; multi-user interference; on-off keying; optical orthogonal code; performance; receiver; sequence inverse keyed CDMA system; signature sequence; zero-valued threshold detector; Bandwidth; Computer simulation; Interference; Multiaccess communication; Optical fiber communication; Optical modulation; Optical receivers; Optical transmitters; Performance analysis; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881560
