What are the main issues in spectrum allocation?

The communication spectrum includes the range of electromagnetic radiation frequencies that are used in wireless communication systems. Their problems revolve around how technicians can make the service better, thus providing an improved system. At the beginning wireless communications were found at the center of the telecommunications network and they were used to carry bulk quantities of calls between cities rather than directly communication one person to another. With the development of Microwave systems, they were able to upgrade the service to carry thousands of calls simultaneously but the only set back was that this system uses directional antennas that make it impossible to extend networks for thousands of miles. This also led to the development of a new system that uses fiber optics, which also paved the way for satellite and cell phone systems. What all these systems were in need of was a more efficient way to use scarce channel space, which is way thanks to technology scientist and technicians continue to develop new ways in which to expand our communication system.