Age of Information in a Two User MISO Interference Channel Under Rayleigh Fading

This work explores the age of information (AoI) in a two-user Rayleigh faded multiple input single output (MISO) Gaussian interference channel. Each transmitter samples the data from a sensor and transmits the data with some random probability. The evolution of AoI is modeled using a Discrete Time Markov Chain (DTMC). Average AoI is characterized in the case of two prominent interference mitigation schemes namely treating interference as noise (TIN) and successive interference cancellation (SIC). Additionally, the impact of multiple transmit antennas and random access probability on the average AoI at the receiver is analyzed.