Today, researchers and manufacturers consider light fidelity (LiFi) technology as an essential solution for fast data transfer in networks. In addition, one of the essential solutions to meet the traffic restriction challenge caused by the growing demand of Internet users is the integration of various communication technologies. Combining LiFi and wireless fidelity (WiFi) technologies is an effective solution to overcome this challenge. Hybrid WiFi/LiFi network uses fast data transfer from LiFi and wide coverage from WiFi. Therefore, their integration can complement the shortcomings of each of these technologies and increases the network performance. In this work, while presenting theoretical concepts of LiFi and hybrid WiFi/LiFi networks, issues such as network structure, cell deployment, modulation techniques, multiple access schemes, and criteria for measuring network performance are discussed. We present practical concepts for implementing LiFi-based networks in detail.