Packet Error Outage for Coded Systems Experiencing Fast Fading and Shadowing
In this paper, the authors consider the performance of coded wireless communication systems experiencing non-frequency selective fading channels in shadowed environments. The Quality of Service (QoS) in a wireless network is dependent on the Packet Error Outage (PEO). They address the problem of finding a tractable expression for the coded PEO over Nakagami-m channels with shadowing, considering multilevel modulations, various blocks and convolutional channel coding schemes and hard decision decoding. In order to obtain the coded PEO, an inversion of the coded Packet Error Probability (PEP) w.r.t. the Signal to Noise Ratio (SNR) is needed. To this end, they propose an invertible approximation for the coded PEP w.r.t. the un-coded Bit Error Probability (BEP) in Nakagami-m fading channels which is accurate for all BEPs of interest.