Open Spectrum: Latest Publications

Mobile Data Demand and the Need for Increased Spectrum Access

Wireless Future — Wed, 21 Oct 2009 06:18:00 -0400

There is no doubt that consumer demand for mobile data applications is exploding worldwide. As Smartphones with PC capabilities and broadband aircards gain access to faster 4G networks beginning next year, total wireless data consumption will increase geometrically. Cisco’s annual projection of global Internet traffic predicts a 129% compound annual growth rate (CAGR) for mobile data over the next five years in North America (through 2013).

Meeting consumer demand for mobile data will require some combination of four strategies:

The End of Spectrum ‘Scarcity’

Wireless Future — Wed, 24 Jun 2009 14:50:00 -0400

Wireless is the most cost-effective and rapid means to bring broadband access to under-served rural and urban residents. Even after high-capacity Internet access becomes universal, wireless remains as the complementary infrastructure needed to achieve the larger goal of pervasive connectivity. Within a few short years, most Americans are likely to spend more hours each week on mobile than on wired Internet connections. Demand for spectrum will outpace availability under current spectrum man-management policies. Meanwhile, in every community across the country, large swaths of valuable spectrum lie fallow the majority of the time. This underutilized spectrum represents enormous, untapped, public capacity for high-speed and pervasive broadband connectivity. Therefore it is vital to a national broadband plan to consider policies that will encourage more intensive and efficient use of the nation’s spectrum resources.

A Potential Alliance for World-Wide Dynamic Spectrum Access

Wireless Future — Wed, 24 Jun 2009 12:58:00 -0400

Dynamic Spectrum Access (DSA) Systems are one of the most promising technologies available to increase the range and efficiency of spectrum dependent services. DSA systems locate unused spectrum, and organize their users to operate within the spectrum they have identified. DSA systems ensure no interference to other users by scanning and sensing the environment, as the Defense Advanced Research Projects Agency (DARPA) NeXt Generation spectrum sharing field tests have established, or through pre-existing knowledge, such as the geolocation database proposed for unlicensed access to TV band white space, or a combination of both. Reported experimental results to date have shown that the promises from DSA technology are realistic and achievable.

New Approaches to Private Sector Sharing of Federal Government Spectrum

Wireless Future — Wed, 24 Jun 2009 12:05:00 -0400

As the U.S. economy and society becomes more and more information-centric and mobile, wireless systems are becoming a major factor in the efficient functioning of our society. Radio spectrum is a key economic input into wireless systems that power our information society and economy and enhance public safety and national security. Since the earliest days of radio regulation in the United States; federal government use of spectrum has been handled independently of other users’ access to spectrum. Thus, the FCC controls spectrum use by private parties and states and local governments while the Department of Commerce’s National Telecommunications and Information Administration (NTIA) controls federal government spectrum use.

Revitalizing the Public Airwaves

Wireless Future — Wed, 24 Jun 2009 08:45:00 -0400

The time has arrived for the unmet potentials of federal white spaces to receive some well-deserved attention. While many policy analysts have focused on the fate of the 700 MHz auctions, the digital TV transition, and the promise of television white space devices, the best available data suggests that the majority of federal spectrum capacity is left unused (McHenry, 2003; McHenry, 2004) – a situation that has gone largely unexamined. Strategic reuse of this spectrum could help obviate the need for significant additional frequency reallocations while enabling a wide range of creative new uses and social benefits. Based on what little information is publicly available, it is reasonable to assume that the repurposing of government spectrum would go far in addressing a number of access-related communication problems. Repurposing currently unused U.S. government-controlled spectrum for opportunistic unlicensed use would benefit society by dramatically expanding access to high-speed broadband and increasing the pace of wireless technological innovation. This approach to spectrum policy presents a “third way” for reform, drawing from both the commons and property rights models of spectrum management.