Performance Analysis of Two-Way Amplify-and-Forward Relaying in the Presence of Co-Channel Interferences

The performance of two-way amplify-and-forward (AF) relaying networks, considering transmissions over independent but not necessarily identically distributed Rayleigh fading channels in the presence of a finite number of co-channel interferers, is studied. Specifically, closed-form expressions for the cumulative distribution function (CDF) of the equivalent signal-to-interference-plus-noise ratio (SINR), the error probability, the outage probability and the system´s achievable rate, are presented. Furthermore, an asymptotic expression for the probability density function (PDF) of the equivalent instantaneous SINR is derived, based on which simple and general asymptotic formulas for the error and outage probabilities are derived and analyzed. Numerical results are also provided, sustained by simulations which corroborate the exactness of the theoretical analysis.