Productized multicarrier predistortion total throughput gains around 20 over linearized channels in true customer use cases

摘要

Efficiency gain is a relevant metric of communication technology directly translating to the same improvement in operational expenditures while sometimes also allowing capital expenditure gains. The latest and best known multicarrier predistortion techniques for satellite communications yielding significant guaranteed throughput gains for all the receivers, regardless of the link budget, even over linearized transponders, have now been productized, tested over the Avanti satellite Hylas 4, and deployed, up to 500 MHz. This paper provides performance results for multiple use cases, including different number of carriers (1, 2, and 4 carriers), balanced and unbalanced power levels. For the relevant use case of two beams with unequal throughput requirements over a completely linearized transponder, total throughput gains around 20% in a single transponder have been achieved. We expect a continued and significant roll-out of this technology in the next 5 years, as long as the carriers in the forward of a high throughput satellite link follows a fixed carrier plan.