随着各种多媒体业务的发展，对更高信道容量、更广服务覆盖范围以及宽带无线接入系统的强烈需求，使得基于光纤的无线信号传输(ROF)迅速发展起来。一些新型的技术如相干技术、多边带技术、多输入多输出（MIMO）技术、正交频分复用（OFDM）技术等，在ROF中的理论研究与应用也日趋完善，将其应用到射频无源光网络(RPON)系统中有望解决目前ROF接入的技术瓶颈，并改善ROF系统的性能。讨论和分析了这些新技术的原理，以及将其应用到ROF中的优缺点，以期为未来的研究提供一些参考。

With the development of multimedia services, demands of higher channel capacity, wider service coverage and broadband wireless access advance radio over fiber (ROF) technology rapidly. Meantime, some new technologies, such as coherent technology, multiband technology, multiple input multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) and so on, are introduced and being optimized in ROF system. Employing such new technologies in ROF system, promises to solve the present technological bottlenecks in radio over passive optical network (RPON) and optimize the performance of the whole system. In this paper, the principles of those technologies, how they could be used in ROF system and their advantages as well as shortcomings are discussed and analyzed to provide a reference for future researchs.