Exact analysis of co-channel interference in a shadowed-Nakagami/shadowed-Rician channel model

To characterize the transmission environment of a microcellular system, ideally we would like to use a model which allows the line-of-sight component in both the desired and interfering signals, i.e. Rican signals. It should also allow different Rice factors, different shadowing spreads, and even different transmitted powers (i.e. irregular cell sizes). The problem, however, is that an exact analysis of such a shadowed-Rician (desired)/shadowed-Rician (interfering) model containing all the variations mentioned above hasn´t been found. We show the exact analysis of a model of a similar kind-the only difference is that the the Rican desired signal is replaced by a Nakagami signal. That is, we offer an exact analysis for a shadowed-Nakagami (desired)/shadowed-Rican (interfering) model. It has been shown that a Rican distribution can be closely approximated by a Nakagami distribution. The offered analytical technique can be viewed as a good approximation for a shadowed-Rican (desired)/shadowed-Rican (interfering) model. The model we analyze also includes all the previously mentioned flexibilities-different Rice factors, different shadowing spreads and different cell sizes