The vision of urban planners in the late 1940’s and 1950’s was that of a suburban population commuting to work in the main city. People flocked to the suburbs and highways were built to connect suburbs with cities; cars were sold and soon enough the model became unsustainable. More highways were needed and existing ones needed more lanes. The model became prohibitively expensive not to mention rising public awareness to environmental issues resulting from car emissions. Municipalities soon realized the need for solutions to congested highways. One such solution is the carpool lane open to vehicles with more than one passenger. Shared transportation became encouraged: if you car pool, you’ll save time, money and help save the environment.
Wireless communications is similar in many respects. Spectrum is a scarce resource, as much as highway capacity is a limited one. More spectrum has been the mantra to date, much as more and wider highways was thirty years ago. Operator’s message to regulator is a simple one: traffic demand will exceed supply; we need more spectrum; and not all bands will work out for us. This obviously is not sustainable for the long term much as building more highways is. Read more of this post