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Reducing co-existence penalty of retransmission-based cognitive radio protocol

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1 Author(s)
Souza, R.D. ; Dept. of Electron., Fed. Univ. of Technol.-Parana, Curitiba, Brazil

A recently proposed cognitive radio model that exploits primary retransmissions is modified, such that the secondary pair uses multiple antennas. By doing so the co-existence penalty can be practically eliminated, while achieving the same useful secondary throughput as before. The method does not require any non-causal knowledge or full channel state information at any transmitter.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 6 )