Abstract: With the rapid development of wireless technology, wireless developers and users for special needs require a high-performance, customizable hardware/software(HW/SW) open platform for underlying wireless networks. This paper describes the design and implement of our proposed GRT platform, which can provide the features of high-performance, highly customizability, compatibility, and openness. As an example, we have implemented a set of SW/HW codes following 802.11a/g protocol. The system based on these codes exceeds the maximum data rate of the physical layer specified in the protocol, and can communicate with commodity WiFi devices.