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Advanced Signal Processing for Cognitive Radio Networks

  1. Content type: Research Article

    Time-delay estimation is studied for cognitive radio systems, which facilitate opportunistic use of spectral resources. A two-step approach is proposed to obtain accurate time-delay estimates of signals that o...

    Authors: Fatih Kocak, Hasari Celebi, Sinan Gezici, Khalid A. Qaraqe, Huseyin Arslan and H. Vincent Poor

    Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:675959

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  2. Content type: Research Article

    In this paper, we investigate the cross-layer design of joint channel access and transmission rate adaptation in CR networks with multiple channels for both centralized and decentralized cases. Our target is t...

    Authors: Hao He, Jun Wang, Jiang Zhu and Shaoqian Li

    Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:305145

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  3. Content type: Review Article

    Cognitive radio is widely expected to be the next Big Bang in wireless communications. Spectrum sensing, that is, detecting the presence of the primary users in a licensed spectrum, is a fundamental problem fo...

    Authors: Yonghong Zeng, Ying-Chang Liang, Anh Tuan Hoang and Rui Zhang

    Citation: EURASIP Journal on Advances in Signal Processing 2010 2010:381465

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  4. Content type: Research Article

    We consider a cognitive radio system with one primary channel and one secondary user, and then we introduce a channel-usage pattern model and a fundamental access scheme in this system. Based on this model and...

    Authors: Qinghai Xiao, Yunzhou Li, Xiaofeng Zhong, Xibin Xu and Jing Wang

    Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:148698

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  5. Content type: Research Article

    Spectral correlation theory for cyclostationary time-series signals has been studied for decades. Explicit formulas of spectral correlation function for various types of analog-modulated and digital-modulated ...

    Authors: Haijian Zhang, Didier Le Ruyet (EURASIPMember) and Michel Terré

    Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:794246

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  6. Content type: Research Article

    Spectrum awareness of orthogonal frequency division multiple access- (OFDMA-) based cognitive radios (CRs) can be improved by enabling them to separate the primary user signals in the uplink (UL). Assuming ava...

    Authors: MustafaE Şahin, Ismail Guvenc and Hüseyin Arslan

    Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:502369

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  7. Content type: Research Article

    Cognitive radio is a revolutionary paradigm to migrate the spectrum scarcity problem in wireless networks. In cognitive radio networks, collaborative spectrum sensing is considered as an effective method to im...

    Authors: Wenkai Wang, Husheng Li, Yan(Lindsay) Sun and Zhu Han

    Citation: EURASIP Journal on Advances in Signal Processing 2009 2010:695750

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