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Due to the scarcity of spectrum resources, spectrum sensing techniques are vital for future wireless communication systems. Compared with energy detection methods (ED), feature detection (FD) methods exploit statistical periodicity of transmission signals and have better performance under low signal-to-noise ratio (SNR) conditions. However, for fast time-varying fading channels, the detection accuracy...
Data streaming from multiple base stations to a client is recognized as a robust technique for multimedia streaming. However the resulting transmission in parallel over wireless channels poses serious challenges, especially multiple access interference, multipath fading, noise effects and synchronization. Spread spectrum techniques seem the obvious choice to mitigate these effects, but at the cost...
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