Cooperative decode-and-forward relaying for secondary spectrum access
作者： Yang Han , A. Pandharipande , See Ting
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摘要: We propose a two-phase protocol based on cooperative decode-and-forward relaying for secondary system to achieve spectrum access along with primary system. The and systems comprise of transmitter-receiver pair, PT-PR ST-SR, respectively. In the first transmission phase, PT transmits signal PR, which is also received by ST SR, where it decoded. At ST, regenerated linearly combined assigning fractions alpha (1 - alpha) available power signals This then broadcasted in second phase. show that as long located within critical radius from PT, there exists threshold value above outage probability will be equal or lower than case without sharing. determine achieved Theoretical simulation results confirm efficiency proposed sharing scheme.
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