随着智能终端和互联网的飞速发展，无线局域网(WLAN)在全球迅速普及，并成为当今全球应用最广泛的宽带无线接入技术。WLAN 的发展面临着覆盖、干扰和维护三方面的问题。将WLAN 与光载无线(ROF)技术结合起来构建光载WLAN系统可以有效解决上述三方面问题。然而，新一代WLAN 标准兼容2.4 和5 GHz 两个频段，采用了先进的多入多出(MIMO)技术，并大幅提高了网络吞吐量，这些新特点对ROF 技术提出了新的要求和挑战。文章总结了在单元技术、传输链路和网络模型三个方面的研究工作，着力解决多频段非线性补偿、MIMO 无线信号单纤传输和光载WLAN系统网络性能建模与评估三类关键技术。

With the development of intelligent terminals and Internet, the Wireless Local-Aarea Networks (WLAN) are becoming more and more popular worldwide,and have been the most-widely used broadband wireless access technology. The further development of WLAN technology is facing three problems in coverage, interference, and maintenance. The three problems can be effectively solved by combining WLAN and Radio-over-Fiber (ROF) technologies. Nevertheless, in the new-generation WLAN standards, 2.4 and 5 GHz two operating frequency-bands are defined, and advanced Multi-Input Multi-Output (MIMO) technique is adopted. In addition, IEEE 802.11n/ac standards significantly enhance the network throughput. All these new features pose stringent requirements and challenges. In this paper, our recent works are reviewed in threes aspects: digital nonlinear compensation in multi-band ROF systems, single-fiber transmission of wireless MIMO signals, and modeling in WLAN throughput performance.