Companies Try to Create Room on Radio Spectrum

Cellphone carriers like AT&T and Verizon say they are worried about running out of the radio spectrum that carries wireless calls and data, and they want the government to give them more chunks of it. But a number of companies are developing technology that could change the whole spectrum game by using radio frequencies more efficiently. Their efforts are getting a powerful endorsement. A presidential advisory committee, which includes executives from Google and Microsoft, plans to present a report this month that explores ways in which computerized radio technologies could make better use of spectrum.