Improved DMT systems with multiple time domain equalization
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    Abstract:

    DFT(discrete fourier transform)based discrete multitone (DMT) transceivers have achieved great success in high speed data transmission. When the cyclic prefix is no shorter than the channel impulse response (CIR), the DMT system is ISI (intersymbol interference) free. For the channels with very long CIR, such as DSL loops, timedomain equalizer (TEQ) is typically added at the receiver to shorten the impulse response and improve performance. This paper proposes a filter banks approach to design the TEQ to maximize the bit rate. A DMT system is introduced with a pair of complex conjugating TEQs. For the design and implementation costs, the scheme shows the best performancepriceratio.

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张承畅,童瑞君,杨力生,严单贵.改进的多维时域均衡器结构的DMT系统[J].重庆大学学报,2010,33(6):111~114

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  • Received:December 10,2009
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