Title :
Direct detect modulations of high speed indoor diffused infrared wireless transmission
Author :
Chen, Kwang-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
High speed indoor diffused infrared wireless transmission is greatly needed for data and multimedia applications. We investigated the error rate performance of OOK (on off keying), NRBI (non-return-to zero with bit insertion), M-ary PPM (pulse position modulation), and two novel coded direct detect modulations, DCGPPM (differentially coded and guarded PPM) and MRLC (modified run length code), by adopting representative channel modeling from measurements and simulations. Practical implementation issues have been further considered. From our results, we suggest DCGPPM at 10 M bps, 4-ary PPM or DCGPPM at 20 M bps, OOK or NRBI at 40 M bps; and MRLC at 100 M bps, for the baseband direct detect transmission of indoor wireless optical transmission
Keywords :
data communication; optical communication; optical modulation; pulse modulation; runlength codes; 10 Mbit/s; 100 Mbit/s; 20 Mbit/s; 40 Mbit/s; DCGPPM; M-ary PPM; MRLC; NRBI; baseband direct detect transmission; coded direct detect modulations; data applications; direct detect modulations; error rate performance; high speed indoor diffused infrared wireless transmission; indoor wireless optical transmission; multimedia applications; on off keying; representative channel modeling; simulations; Error analysis; High speed optical techniques; Infrared detectors; Intensity modulation; Modulation coding; Optical filters; Optical modulation; Optical receivers; Pulse measurements; Pulse modulation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.529424
