  This paper evaluates the performance of reliability and latency in machine
type communication networks, which composed of single transmitter and receiver
in the presence of Rayleigh fading channel. The source's traffic arrivals are
modeled as Markovian processes namely Discrete-Time Markov process, Fluid
Markov process, and Markov Modulated Poisson process, and delay/buffer overflow
constraints are imposed. Our approach is based on the reliability and latency
outage probability, where transmitter not knowing the channel condition,
therefore the transmitter would be transmitting information over the fixed
rate. The fixed rate transmission is modeled as a two state Discrete time
Markov process, which identifies the reliability level of wireless
transmission. Using effective bandwidth and effective capacity theories, we
evaluate the trade-off between reliability-latency and identify QoS
requirement. The impact of different source traffic originated from MTC devices
under QoS constraints on the effective transmission rate are investigated.
