Title :
SDH radio-relay systems for regional areas
Author :
Takahara, Koichi ; Fujimoto, Naoki ; Segawa, Jun
Author_Institution :
NTT Network Syst. Dev. Center, Tokyo, Japan
Abstract :
CCITT (International Telegraphy and Telephony Consultative Committee) has standardized a new synchronous interface named SDH (synchronous digital hierarchy). A number of SDH-based digital radio systems have been developed. Design criteria for such SDH radio systems are described. Technical details and an illustration of some applications are presented. The 11/15 G-150 M (8 PSK) and 4/11 G-50 M (4 PSK) systems are presented in detail
Keywords :
digital radio systems; microwave links; phase shift keying; synchronous digital hierarchy; 11 GHz; 11/15G-150M system; 15 GHz; 4 GHz; 4 PSK; 4/11G-50M system; 8 PSK; SDH radio-relay systems; SHF; regional areas; synchronous digital hierarchy; Availability; Bit rate; Costs; Digital communication; Frequency; ISDN; Optical fibers; Repeaters; Springs; Synchronous digital hierarchy;
Conference_Titel :
Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-87942-697-7
DOI :
10.1109/GLOCOM.1991.188506
