PAN's advantages and disadvantages primarily stem from the fact that it is not a radiative form of communication. Due to this, PAN transmissions are somewhat private. This makes it very poor for long distance communications, but means transmissions between devices on the body will remain private to the body, making eavesdropping substantially more difficult. This also resolves many channel sharing issues, as the number of communicating devices on a body is going to be limited to the dozens, on the high end. This makes it much easier to do channel allocation, as contrasted with a room size, building size, city size or nationwide system which may have to deal with many dozens, hundreds, thousands, or millions of devices. Additionally, PAN can be used in a fairly traditional network model in cooperation with other wireless strategies, by having all devices on the body capable of transmitting via PAN, and individual ``router'' devices which can retransmit messages off the body via some other mechanism if need be.