Evaluación de los Efectos de la Interferencia de Co-Canal sobre la Tasa de Error de Bit de Redes Inalámbricas usando Códigos Correctores de Errores en Canales con Desvanecimiento (Evaluation of the Effects of Co-Channel Interference on the Bit Error Rate of Wireless Networks with Error Correcting Codes in Fading Channels)

Carlos Daniel Altamirano (cdaltamirano@espe.edu.ec)1, Celso de Almeida (celso@decom.fee.unicamp.br)2


1Escuela Politécnica del Ejército
2Universidade Estadual de Campinas

This paper appears in: Revista IEEE América Latina

Publication Date: May 2013
Volume: 11,   Issue: 3 
ISSN: 1548-0992


Abstract:
This paper presents a performance analysis of wireless networks using error correcting codes on channels with Rayleigh fading in the presence of co-channel interference. The performance is evaluated in terms of the average bit error rate (BER) using TCM (Trellis-Coded Modulation) and TTCM (Turbo Trellis-Coded Modulation) schemes for QAM modulations. The effects of co-channel interference are evaluated through Monte Carlo simulation in scenarios where the system is affected by a dominant interfering synchronous and similar to the target user. For each coded-modulation schemes, the results show that there are BER floors, which vary according to the signal-interference (S/I).

Index Terms:
BER, Co-Channel Interference, Rayleigh Fading, TCM, TTCM.   


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