Internet over TV White Space (TVWS) refers to a relatively new method of delivering internet connectivity by utilizing the unused spectrum in the television broadcast bands. This method is often referred to as “Super Wi-Fi” due to its ability to transmit over longer distances and penetrate through obstacles more effectively compared to traditional Wi-Fi technologies.
Here are some key points regarding Internet over TV White Space:
Spectrum Usage:
- TV White Space refers to the unused broadcasting frequencies in the wireless spectrum. Television networks leave gaps called “white space” between channels for buffering purposes, and this space can be used to deliver broadband internet.
Long-Range Connectivity:
- One of the significant advantages of TVWS technology is its long-range connectivity. TV White Space devices can transmit signals over much longer distances and through obstacles such as foliage and buildings, making it particularly useful in rural and remote areas where deploying traditional broadband infrastructure is challenging or not cost-effective.
Regulatory Approval:
- The use of TV White Space for internet connectivity requires regulatory approval to ensure that it doesn’t interfere with licensed broadcasters and other licensed users of the spectrum. In the United States, the Federal Communications Commission (FCC) has set rules and regulations governing the use of TVWS.
Dynamic Spectrum Access:
- TVWS devices use dynamic spectrum access technology to identify which channels are available for use in real-time, avoiding interference with other licensed users of the spectrum. This dynamic access is usually managed through a geolocation database that keeps track of available channels in different locations.
Applications:
- TVWS can be utilized to provide broadband internet in rural and underserved areas, creating opportunities for improved education, healthcare, and economic development. It can also be used for various other applications like smart agriculture, IoT connectivity, and municipal Wi-Fi networks.
Equipment:
- Special equipment is needed to utilize TVWS for internet connectivity. This includes white space radios and antennas that are designed to operate in the VHF/UHF bands.
Speed and Performance:
- The speed and performance of TVWS internet can vary based on various factors including the amount of available white space, the technology used, and the network configuration. However, it might not offer as high speeds as some other broadband technologies like fiber-optic.
Cost:
- Deploying TVWS technology could be more cost-effective than traditional broadband in certain scenarios, especially in rural or remote areas where the infrastructure for wired broadband is lacking.
Global Adoption:
- The adoption of TVWS technology is growing globally with projects and pilots in various countries showcasing the benefits of using TV White Space for rural broadband and other applications.
Internet over TV White Space presents a promising solution to bridge the digital divide, especially in regions where other types of internet connectivity are not feasible or too expensive to deploy.