Title :
Remote delivery of video services using mm-waves and optics
Author :
O´Reilly, Jim ; Lane, Phil
Author_Institution :
Sch. of Electron. Eng. & Comput. Syst., Univ. of Wales, Bangor, UK
fDate :
2/1/1994 12:00:00 AM
Abstract :
Advantages of a radio-based final drop for video delivery are outlined and spectral availability constraints that lead to the identification of the mm-wave region of the radio spectrum as the most appropriate for this application are discussed. The possibility of simultaneously supporting other broadband services, such as B-ISDN and traffic information systems (IVHS), enhance the attractiveness of a radio link. A large number of antenna units need to be served due to the limited propagation distances achievable at mm-wave frequencies, and therefore, a low-cost generation and delivery method has to be developed. In this paper, alternatives for the optical generation and distribution of mm-wave signals are reviewed and a new method is proposed that eases the bandwidth, and hence the cost, of the required optoelectronic components. An assessment of the relative merits of the methods is given
Keywords :
B-ISDN; microwave links; optical links; subscriber loops; television networks; video signals; B-ISDN; IVHS; antenna units; broadband services; limited propagation distances; low-cost generation; mm-wave region; mm-waves; optical generation; optics; optoelectronic components; radio link; radio spectrum; radio-based final drop; remote video service delivery; review; spectral availability constraints; traffic information systems; video delivery; Antennas and propagation; B-ISDN; Bandwidth; Costs; Frequency; Information systems; Optical devices; Optical propagation; Radio link; Signal generators;
Journal_Title :
Lightwave Technology, Journal of