Cognitive Radio Based Multiple Access Algorithm for Differential Frequency Hopping Network
Beijing（2009）
Abstract
Cognitive radio (CR) is a revolutionary technology of wireless mobile communication. Smart users can use the CR technology to sense the surrounding environment, search for available spectrum resources and access spectrum dynamically. Differential frequency hopping (DFH) was believed to be an effective FH technique for increasing data rate of HF communication system. The cognitive radio technology is introduced in DFH. And a cognitive radio based multiple access algorithm (ITMA) is proposed. This algorithm is based on the interference temperature model, which is applied to the DHF network with the MAI-tolerant. The scenario simulations of the ITMA DFH network and the conventional DFH network are performed, respectively. The results show that the ITMA DFH network can obtain favorable network performance.
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Key words
hf communication system,favorable network performance,cognitive radio,multiple access algorithm,access spectrum dynamically,interference temperature model,mobile radio,itma dfh network,differential frequency hopping network,wireless mobile communication,mai-tolerant,cr technology,dhf network,differential frequency,cognitive radio technology,revolutionary technology,conventional dfh network,frequency hop communication,temperature measurement,transceivers,mobile communication,spectrum,bandwidth,network performance,interference,communication system,decoding
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