Capacity of a Multi-Beam, Multi-Satellite CDMA Mobile Radio Networks with Interference-Mitigating Receivers

摘要

Interference-resilient receivers for CDMA transmissions promise a noticeable capacity increase on theoretical grounds.Do they really bring forth such performance boost in a realistic scenario ? The aim of this study is to give a preliminary answer to such a question, through the capacity analysis of the forward link of a multi-satellite, multi-beam, radio communication network at S-band. Specifically, starting from simplified yet realistic assumptions on the beam layout, the antenna footprint shape, and the coding/multiplexing/modulation strategies, it is shown that the blind, adaptive, interferencemitigation receiver [5], [6], selected as representative of the lot, can indeed boost the system quality of service in terms of outage probability. The results are derived after a mix of theoretical analysis (as far as the detector performance evaluation is concerned) and simulation (to examine a number of different random system configurations) to circumvent the inherent complexity of the issue.