Title :
Filtered modulation schemes for short distance infrared wireless communications
Author :
Pérez-Jiménez, Rafael ; Rabadán, José A. ; Lopez-Hernandez, F.J.
Author_Institution :
Dept. de Senales y Comunicaciones, Univ. de Las Palmas de Gran Canaria, Spain
fDate :
5/1/2000 12:00:00 AM
Abstract :
This paper describes two modem prototypes based on spectrally efficient filtered modulations for infrared wireless links. They are fully compatible with commercial IrDA and IEEE 802.11 standards. These links allow more channels, giving a more accurate use of the infrared spectrum. We compare the performances of the two main alternatives: phase (using FQPSK-2 systems) and frequency modulations (GMSK schemes). We have designed and tested 2 Mb/s IR modems with each modulation scheme. Extensive experimental results and BER measurements of these prototypes are also detailed
Keywords :
IEEE standards; error statistics; minimum shift keying; modems; optical communication; optical links; optical modulation; performance evaluation; quadrature phase shift keying; telecommunication standards; wireless LAN; 2 Mbit/s; BER measurements; FQPSK-2 systems; GMSK; IEEE 802.11 standard; IR wireless links; IR wireless local area networks; IrDA standard; experimental results; frequency modulation; infrared spectrum utilization; infrared wireless links; modem prototypes; performance; phase modulation; short distance infrared wireless communications; spectrally efficient filtered modulation; Bit error rate; Energy consumption; Infrared spectra; Modems; Optical fiber communication; Phase modulation; Prototypes; Testing; Wireless LAN; Wireless communication;
Journal_Title :
Consumer Electronics, IEEE Transactions on
