ARLA/CLUSTER: Duplicar a eficiencia das redes wireless

[João Gonçalves Costa]

Increasing efficiency of wireless networks

Professors at the University of California, Riverside Bourns College of Engineering have apparently developed a way of doubling the efficiency of wireless networks

The publication Wireless Design says the findings were outlined in a paper titled "A method for broadband full-duplex MIMO radio".

It appears the doubling of efficiency could be acheived by using full-duplex with "time-domain transmit beamforming", which digitally creates a time-domain cancellation signal, couples it to the radio frequency front-end to allow the radio to hear much weaker incoming signals while transmitting strong outgoing signals at the same frequency and same time.

Wireless Design says Yingbo Hua and Ping Liang see applications in cognitive radio, a type of wireless communication in which a transceiver can detect which communication channels are in use and which are not, and move into vacant channels while avoiding occupied ones. While cellular frequency bands are overloaded, other bands, such as military, Amateur Radio and TV, are often underutilized.

Read the Wireless Design Online article at
http://www.wirelessdesignonline.com/doc.mvc/increasing-efficiency-of-wireless-networks-0001
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