Performance improvement using beam diversity technique in GEO satellite communication system over correlated Nakagami-m fading channels

In GEO satellite communication with multi-beam antenna coverage, the decline of uplink performance will appear when the earth terminal near to the junction area of beams coverage. A method to solve the problem by beam diversity technique is studied in this paper. After presenting a new generation method of Nakagami-m fading channel simulation model, we build up a system model for the analysis of multi-beam diversity. In this model, terminal position, beam gain and channel fading level are taken into account. A number of results of simulation show that using beam diversity reception technique can effectively improve uplink performance of GEO satellite communication.