Researchers at Queens University in Belfast, Northern Ireland, are studying how to create an infrastructure out of human beings interconnected by wearing sensors, gateways and radios, resulting in a "body-to-body" network. Because human beings are so easy to come by, the networks could potentially be massive as well as high in bandwidth. The team is now studying how human bodies and movement can affect radio signals, and the general operations of body area networks, which aren't new. Concurrent research is being done at Carnegie Mellon to study how thousands of sensors can communicate with each other effectively. Long term, actual functioning body-to-body wireless networks could render cellular base stations unnecessary in heavily populated areas. Of course, that's all well into the future, but hit up the source for more details.

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Humans wearing radios could form massive wireless networks of the future