Approximating the Outage Probability of Parallel Fading Channels

J.-P. Coon (1) , David E. Simmons (1) , Marco Di Renzo (2)

1 University of Oxford
2 L2S - Laboratoire des signaux et systèmes

We develop an approximation for the outage probability of a parallel channel where the subchannel statistics satisfy mild conditions. The main result is in the form of a functional of the density function that describes the statistics of the subchannel powers. The error of the approximation is quantified to be O(y-n(q+1)-2), where y is the end-to-end SNR of a given subchannel, n is the number of subchannels, and q represents the inherent subchannel diversity. We illustrate the versatility and accuracy of the approximation by studying different statistical subchannel models, which reflect practical wireless communication systems, including line-of-sight links (Rician fading), transmissions affected by interference, and relay systems subject to amplifier distortion.

Domains: Signal and Image processing; Networking and Internet Architecture [cs.NI]

J.-P. Coon, David E. Simmons, Marco Di Renzo. Approximating the Outage Probability of Parallel Fading Channels. IEEE Communications Letters, 2015, 19 (12), pp.2190-2193. ⟨10.1109/lcomm.2015.2496591⟩. ⟨hal-01269548⟩