Researchers at The Chinese University of Hong Kong (CUHK) and Microsoft Corp. have successfully developed a new system, WISER (White-space Indoor Spectrum EnhanceR), that improves indoor access to radio frequency spectrum which can enhance the performance of wireless technologies.
In most places, radio spectrum is allocated by strict licensing to different wireless applications in a way that is highly inefficient. Some spectrum frequencies are highly congested while some are idle. A growing number of countries have thus begun to allow users to get access to certain spectrum frequencies on a license-exempt basis, which is similar to Wi-Fi. Given the rapid growth of worldwide demand for radio spectrum in wireless communication, TV white spaces, the unused portions of TV spectrum, offer the first and promising opportunity to provide additional spectrum for users.