adaptive than single band designs better co existence characteristics with systems such as 802 11a and lower risk implementations because it leverages more traditional radio design techniques these advantages can be retained while maintaining similar complexity and power consumption levels as single band designs with respect to being scalable and adaptive an advantage of the multi band approach is that for example low bit rate systems can use few bands high bit rate systems can use many bands another advantage is to be potentially adaptive to different radio regulations worldwide in the event that they do not have the same harmonized spectrum allocations as happened for the 2 4 ghz and 5 ghz bands used by wifi and bluetooth with respect to co existence another advantage of the multi band approach is to increase the level of coexistence with other services such as ieee 802 11a a receiver can dynamically adjust the in band interference by removing the affected band or a transmitter can avoid transmitting in a band already used by another service in close proximity finally since the multi band technique is based on well known wireless communications scheme modified for use with the uwb spectrum the technology presents lower implementation risk this makes multi band the best candidate for commercial applications that require standards technology and multiple vendors for high volume adoption multi band systems permit adaptive selection of the bands to provide good interference robustness and co existence properties when the system detects the presence of an 802 11a system for example it can avoid the use of the bands centered at 5 35 ghz or 5 85 ghz this same feature can also be utilized to provision for different spectrum allocations outside of the united states the bands that share the spectrum with extremely sensitive.