Title :
Free-Space Optics and E-Band Radio: Complementary Techniques for Gbit/Sec Wireless
Author :
Frigyes, István ; Csurgai-Horváth, László
Author_Institution :
BME, Budapest Univ. of Technol. & Econ., Budapest, Hungary
Abstract :
Free Space Optics (FSO) and E-band links operating in parallel are investigated. In contrast to previous work in this field equal transmission rate of the two is assumed- 1 Gbit/sec in existing systems with a likely increase in the near future. Propagation characteristics are briefly presented. It is shown that practical difficulties preclude microwave backup to FSO links. Equal transmission rate leads to the possible application of parallel MIMO techniques. Outage capacity based on that is determined regarding for both binary and quaternary modulation and both Direct Detection (DD) and heterodyne techniques in the FSO link. The unexpected conclusion is that it is more the FSO link that serves as backup to the E-band link than the converse.
Keywords :
MIMO communication; microwave propagation; modulation; optical links; E-band links; E-band radio; binary modulation; bit rate 1 Gbit/s; direct detection techniques; field equal transmission rate; free-space optics; heterodyne techniques; microwave backup; parallel MIMO techniques; propagation characteristics; quaternary modulation; Frequency; High speed optical techniques; MIMO; Microwave propagation; Optical mixing; Optical propagation; Phase shift keying; Satellite broadcasting; Space technology; Testing;
Conference_Titel :
Wireless Communications and Networking Conference Workshops (WCNCW), 2010 IEEE
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-6405-0
Electronic_ISBN :
978-1-4244-6406-7
DOI :
10.1109/WCNCW.2010.5487647
