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Cognitive Radio and Dynamic Spectrum Sharing Systems

  1. Research Article

    Cyclostationarity-Inducing Transmission Methods for Recognition among OFDM-Based Systems

    This paper proposes two cyclostationarity-inducing transmission methods that enable the receiver to distinguish among different systems that use a common orthogonal frequency division multiplexing- (OFDM-) bas...

    Koji Maeda, Anass Benjebbour, Takahiro Asai, Tatsuo Furuno and Tomoyuki Ohya

    EURASIP Journal on Wireless Communications and Networking 2008 2008:586172

    Published on: 30 March 2008

  2. Research Article

    Resource Distribution Approaches in Spectrum Sharing Systems

    It is increasingly difficult to satisfy growing demands for spectrum with the conventional policy of fixed spectrum allocation. To overcome this problem, flexible/dynamic spectrum sharing methods that can sign...

    Takefumi Yamada, Dennis Burgkhardt, Ivan Cosovic and Friedrich K Jondral

    EURASIP Journal on Wireless Communications and Networking 2008 2008:598080

    Published on: 13 March 2008

  3. Research Article

    Maximising the System Spectral Efficiency in a Decentralised 2-Link Wireless Network

    This paper analyses the system spectral efficiency of a 2-link wireless network. The analysis reveals that there exist three operating points that possibly maximise the system spectral efficiency: either both ...

    Sinan Sinanović, Nikola Serafimovski, Harald Haas and Gunther Auer

    EURASIP Journal on Wireless Communications and Networking 2008 2008:867959

    Published on: 6 March 2008

  4. Research Article

    Interference Mitigation Technique for Coexistence of Pulse-Based UWB and OFDM

    Ultra-wideband (UWB) is a useful radio technique for sharing frequency bands between radio systems. It uses very short pulses to spread spectrum. However, there is a potential for interference between systems ...

    Kohei Ohno and Tetsushi Ikegami

    EURASIP Journal on Wireless Communications and Networking 2008 2008:285683

    Published on: 13 February 2008

  5. Research Article

    Achievable Rates and Scaling Laws for Cognitive Radio Channels

    Cognitive radios have the potential to vastly improve communication over wireless channels. We outline recent information theoretic results on the limits of primary and cognitive user communication in single a...

    Natasha Devroye, Mai Vu and Vahid Tarokh

    EURASIP Journal on Wireless Communications and Networking 2007 2008:896246

    Published on: 20 November 2007

  6. Research Article

    Opportunistic Scheduling for OFDM Systems with Fairness Constraints

    We consider the problem of downlink scheduling for multiuser orthogonal frequency-division multiplexing (OFDM) systems. Opportunistic scheduling exploits the time-varying, location-dependent channel conditions to...

    Zhi Zhang, Ying He and Edwin K. P. Chong

    EURASIP Journal on Wireless Communications and Networking 2007 2008:215939

    Published on: 20 November 2007

  7. Research Article

    Nonparametric Interference Suppression Using Cyclic Wiener Filtering: Pulse Shape Design and Performance Evaluation

    In the future, there will be a growing need for more flexible but efficient utilization of radio resources. Increased flexibility in radio transmission, however, yields a higher likelihood of interference owin...

    Anass Benjebbour, Takahiro Asai and Hitoshi Yoshino

    EURASIP Journal on Wireless Communications and Networking 2007 2008:243548

    Published on: 20 November 2007