Cognitive radio helps guarantee reachability of emergency services

(PhysOrg.com) -- A new approach to wireless communication will guarantee the reachability of emergency services in a better way. 'Cognitive radio', for which Qiwei Zhang (CTIT) developed new techniques, borrows free space in other frequency bands or even organizes an ad hoc network 'on the spot'.

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<p><a href="http://www.physorg.com/news155234869.html">Cognitive radio helps guarantee reachability of emergency services</a></p> <p>(PhysOrg.com) -- A new approach to wireless communication will guarantee the reachability of emergency services in a better way. 'Cognitive radio', for which Qiwei Zhang (CTIT) developed new techniques, borrows free space in other frequency bands or even organizes an ad hoc network 'on the spot'.</p>