Abstract: Determining the optimal arrival rate to the microcontroller to balance the trade-off between arrival rate and blocking Probability is one of the fundamental issues in WSN. Due to that fact, the bigger the data, the more computation and energy required to deliver the data packets.In an attempt to overcome this challenge, we have extended the model to determine the optimal arrival rate to the Microcontroller with both real time and non- real time traffic to balance the trade-off between arrival rate and blocking probability.Numerical results conducted for various loads, Average arrival rates, service rate of server, Average waiting time and probability of blocking show that real time traffic class experiences lower blocking Probability than non- real time, also results showed that Real time traffic experiences lower average waiting time than non- real time traffic.

Keywords: WSN, Differentiated Services, Blocking Probability, Real&Non-Real Time Traffics.