A coded convolutional spreading CDMA system with turbo equalization for downlink transmission over a frequency selective fading channel - Weerasinghe, N.; Watanabe, S.; Hashimoto, T.; Itoh, S. (IEEE transactions on communications, 2009)
Keywords: Applied sciences; CDMA; Channels; Code division multiple access; Coding, codes; Complexity; Convolution; Convolutional codes; convolutional spreading; Degradation; Delay; Detection, estimation, filtering, equalization, prediction; Downlink; Equalization; Exact sciences and technology; Fading; fading channel; Frequency division multiaccess; Frequency estimation; Information, signal and communications theory; Maximum likelihood estimation; multi-user interference; Multiaccess communication; path diversity; Radiocommunications; receiver complexity; Receivers; Selective fading; Signal and communications theory; Signal, noise; Spreading; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Transmitters. Receivers; turbo equalization; zero correlation zone (ZCZ) sequences; Performance evaluation; Maximum likelihood sequence estimation; Wireless telecommunication; receiver complexity; zero correlation zone (ZCZ) sequences; Downlink; Iterative method; convolutional spreading; Degradation; path diversity; Frequency selection; Synchronous transmission; Delay time; multi-user interference; Direct sequence; turbo equalization; Fading channels; Fading; Multiple access; fading channel; Convolutional code; Receiver; CDMA; Equalization; Diversity combining; Code division multiple access; Signal to noise ratio