Title :
An efficient implementation of FEC in SDH digital radio systems
Author :
Lometti, A. ; Giannetti, F.
Author_Institution :
Telettra Telecommunicazioni SpA, Vimercate, Italy
Abstract :
The insertion of an error-correcting code for M-ary quadrature amplified modulations (M-QAMs) in the section overhead (SOH) bytes of the STM-1 frame is proposed. The theoretical performances of codes in the presence of additive white Gaussian noise (AWGN) are evaluated, and two models for simulating their behaviour in the presence of the residual bit-error rate (BER) are introduced. It is shown that the performances of the analyzed codes are equivalent to those of single-error-correcting code versus AWGN and, with respect to the disturbances and imperfections taken into account in the described models, show a better capability of reducing the residual BER of the system
Keywords :
amplitude modulation; digital radio systems; error correction codes; error statistics; white noise; AWGN; FEC; M-QAM; M-ary quadrature amplified modulations; SDH digital radio systems; STM-1 frame; additive white Gaussian noise; error-correcting code; implementation; residual BER; section overhead bytes; synchronous transfer module; AWGN; Additive white noise; Bit error rate; Digital communication; Error correction codes; Forward error correction; Modulation coding; Performance analysis; Performance evaluation; Synchronous digital hierarchy;
Conference_Titel :
Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-87942-632-2
DOI :
10.1109/GLOCOM.1990.116689
