TY - JOUR
T1 - Digital pulse interval modulation for IR communication systems a review
AU - Ghassemlooy, Zabih
AU - Hayes, Andrew
PY - 2000
Y1 - 2000
N2 - This paper presents a brief review of infrared communications systems, modulation techniques and in particular, a digital pulse modulation scheme known as digital pulse interval modulation (DPIM) for infrared (IR) communication systems employing intensity modulation with direct detection (IM/DD). DPIM code characteristics, power spectral density and error probability in terms of the packet error rate are discussed. Performance comparison is made with that of on–off keying (OOK) and pulse position modulation (PPM). For comparison, relevant expressions for both OOK and PPM are also presented. Using a threshold-detector-based receiver, we show that DPIM outperforms both OOK and PPM in terms of power efficiency and PPM in terms of bandwidth efficiency, by taking advantage of its inherent variable symbol duration. However, using a maximum-a posteriori (MAP) detector it provides marginally inferior error rate performance compared with PPM.
AB - This paper presents a brief review of infrared communications systems, modulation techniques and in particular, a digital pulse modulation scheme known as digital pulse interval modulation (DPIM) for infrared (IR) communication systems employing intensity modulation with direct detection (IM/DD). DPIM code characteristics, power spectral density and error probability in terms of the packet error rate are discussed. Performance comparison is made with that of on–off keying (OOK) and pulse position modulation (PPM). For comparison, relevant expressions for both OOK and PPM are also presented. Using a threshold-detector-based receiver, we show that DPIM outperforms both OOK and PPM in terms of power efficiency and PPM in terms of bandwidth efficiency, by taking advantage of its inherent variable symbol duration. However, using a maximum-a posteriori (MAP) detector it provides marginally inferior error rate performance compared with PPM.
KW - optical communications
KW - digital modulation
KW - pulse modulation
KW - infrared communications
KW - optical wireless
U2 - 10.1002/1099-1131(200011/12)13:7/8<519::AID-DAC454>3.0.CO;2-5
DO - 10.1002/1099-1131(200011/12)13:7/8<519::AID-DAC454>3.0.CO;2-5
M3 - Article
VL - 13
SP - 519
EP - 536
JO - International Journal of Communication Systems
JF - International Journal of Communication Systems
SN - 1074-5351
IS - 7-8
ER -