WiMAX communications is a type of the broadband communications so that it is vulnerable to collisions between signals from two different antennas or two different mobiles or two different signals from a mobile and an antenna. The coordination between antennas and mobiles is the best way to avoid the collision because no signals of similar frequencies will be emitted at the same time. The WiMAX antennas coordinate between each other over the terrestrial network. A specified VLAN can be dedicated for the coordination between WiMAX antenna to avoid emitting signals of similar frequencies to avoid the occurance of collisions and intereferences.
However, the alternative is very helpful in the application of technology and this dedicated terrestrial VLAN may be haulted or supposed to a glitch. Another wireless VLAN should be dedicated between the mobiles theirselves. This wireless VLAN will be independent of the terrestrial VLAN and even it will be supervised by a different server. The question here is that if a collision already occurs between mobile signals, how will this VLAN operates? The answer is that this collision is occasional and intermittent and it is enough for this wireless VLAN to be connected for short periods to achieve its required task.
