Formula may help 5G wireless networks efficiently share communications frequencies

Science Daily  May 26, 2020
Researchers at NIST have developed a formula using Q-learning technique which enables transmitters to rapidly select the best subchannels for successful and simultaneous operation of Wi-Fi and License Assisted Access (LAA) networks in unlicensed bands. The transmitters each learn to maximize the total network data rate without communicating with each other. The scheme rapidly achieves overall performance that is close to the result based on exhaustive trial-and-error channel searches. The formula takes into account multiple network layers, the physical equipment and the channel access rules between base stations and receivers. The study addressed indoor scenarios, such as a building with multiple Wi-Fi access points and cellphone operations in unlicensed bands. Researchers now plan to model the method in larger-scale outdoor scenarios and conduct physical experiments to demonstrate the effect…read more.