文章主要对一种基于微波接入全球互通(WiMAX)的宽带无线接入网的射频光纤传输系统的方案进行了研究。该方案主要描述了系统的中心站与基站间的下行链路的结构。对其功率预算和载波带宽选择问题进行了理论推导和分析。其分析结果对该系统在功率以及载波带宽选择方面具有一定的指导意义。

This paper studies a specific Radio-Frequency-over-Fiber scheme for WiMAX (Worldwide Interoperability for Microwave Access)-based broadband wireless access systems. This scheme describes the structure of the downlink between the center station and the base stations. Theoretical ratiocinations and performance analyses are conducted in terms of power budget and carrier bandwidth selection. The results are helpful for the design of practical systems in these respects.