The wireless spectrum was carved up in the mid-20th century with protection of commercial radio and television signals as its primary concern. One example of this was the practice of leaving “white space” between broadcast channels to prevent interference by analog signals crowded too close together. Especially since the dawn of the digital age, technology has gotten better and better at reclaiming such underutilized slices of this spectrum, creating a wide array of new markets and applications that have opened up communication in revolutionary ways—without degrading performance by legacy spectrum users
A new standard, IEEE 1900.4a™-2011, defines additional components of the IEEE 1900.4™ system to enable mobile wireless access service in white space frequency bands without any limitation on used radio interface (physical and media access control layers, carrier frequency, etc.).Get more information.
New Wireless Network Standard Fills in the White Space
