Interference-avoiding features of ultra-wideband communication and wideband ALOHA

Short-distance low-energy high-bandwidth communication can benefit greatly from light traffic, wideband ALOHA techniques. Because of the short distances, ultra-wideband communication may be permissible. This allows high data rates with very little interference. Also, in a multi-receiver situation, even very rare interference that is present in one receiver may not be present in an associated receiver. Thus simple orthogonal reception is almost always available, without the need for complex hopping codes. Examples are given for mobile users to a dense multi-base network, such as a system of base stations along major roadways, and ad hoc wireless networks.