The growth of commercial wireless broadband services and government missions, including public safety and defense, has increased demand for radio-frequency spectrum. The Middle Class Tax Relief and Job Creation Act of 2012 directed GAO to study spectrum efficiency and receiver performance.
GAO studied four areas related to improving receiver performance, including:
1) actions taken by manufacturers and commercial licensees,
2) actions taken by the federal government,
3) challenges, and
4) options identified by stakeholders.
The Federal Communications Commission (FCC), which manages commercial and other nonfederal spectrum use, believes it lacks general authority to impose receiver standards and rather relies on the marketplace to improve receiver performance. In specific cases, FCC has provided incentives for nonfederal spectrum users to improve receivers. Both NTIA and FCC have taken additional actions to improve receiver performance, like undertaking studies and hosting public workshops.
Although industry and government have taken actions, stakeholders identified three challenges to improving receiver performance:
- Lack of coordination across industries when developing voluntary standards: Standards are often developed for a single industry and not coordinated with those using adjacent spectrum.
- Lack of incentives for manufacturers or spectrum users to incur costs associated with using more robust receivers: The benefits of improved receiver performance, namely freed-up spectrum for new services and users, often accrue to others and not those incurring the costs to improve receivers.
- Difficulty accommodating a changing spectrum environment: When spectrum is repurposed for a new use, upgrading or replacing receivers currently in use to mitigate interference can be difficult and take considerable time.
The GAO recommends that the FCC should consider collecting information on the practical effects of options to improve receiver performance. FCC replied that it had initiated such a fact-gathering process; GAO believes FCC's process to date may not provide information on the practical effects of these options.
[GAO-13-265]