Novel approximation to average symbol error rate probability of composite Nakagami-m/log-normal fading channel

This paper presents a closed-form probability distribution function of a composite Nakagami-m/log-normal (NL) fading channel. The approach uses Holtzman efficient procedure to approximate the composite function. The obtained closed-form results are accurate for severe multipath fading and light shadowed fading channels and facilitate to derive the significant performance metric of a communication system such as the Average Bit Error Probability (ABEP) of coherent modulation format including binary orthogonal, antipodal, MPSK and MPAM is obtained in the composite Nakagami-m/lognormal fading channels.