Comparison between ITU-T Recs G.826×G.821: a concrete case in Brazil

Author

Barbieri, L. ; Malta, A.L.M.

Author_Institution

Alcatel Brazil, Rio de Janeiro, Brazil

Volume

1

fYear

1995

fDate

24-27 Jul 1995

Firstpage

22

Abstract

This paper presents a comparison between the limits of the ITU-T Recs G.826 and G.821 in a 5 GHz-32 QAM-155 Mbits/s (STM-1) radio system, to be implemented from Vitoria (ES) to Salvador (Brazil). This backbone is composed of 17 hops (with an average length of 54 km) near the coast, divided in four baseband sections. The results of this design is presented, comparing the G.821 criteria with the corresponding G.826 ones and it is shown that although there were some pessimist expectations to the compliance of the G.826 criteria, these limits are achieved without requiring very large infrastructure modification or hardware adaptations

Keywords

digital radio; microwave links; quadrature amplitude modulation; telecommunication standards; 15 Mbit/s; 32-QAM; 5 GHz; Brazil; ITU-T Recommendation G.821; ITU-T Recommendation G.826; SHF; STM-1; Salvador; Vitoria; baseband sections; radio system; Baseband; Bit error rate; Computer aided software engineering; Concrete; Digital relays; Hardware; Ice; Microwave propagation; Radio communication countermeasures; Spine;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-2674-1

Type

conf

DOI

10.1109/SBMOMO.1995.509592

Filename

509592