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A Ultra-wideband Transmitted-Reference Receiver under Inter-symbol Interference |
Liao Xue-wen; Ren Pin-yi; Zhu Shi-hua; Zeng Er-lin |
Dept. of Information and Communications Engineering, Xian Jiaotong University, Xian 710049, China |
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Abstract Based on Ultra-WideBand (UWB) conventional Transmitted Reference (TR) technology, the interference model which reference and data receive waveforms are both contaminated by inter-pulse interference is analyzed relying on Time Division Multiple Access. On account of the slow varying character of the UWB channel, some non-overlapped pilot pulses are utilized to estimate the model coefficients, and the coefficients are tracked by Volterra’ LMS algorithm. A root method is adopted to equalize the second-order non-linear inter-symbol interference. Simulation result in IEEE 802.15.3a’s indoor multipath channel model shows that the non-linear equalization receiver can eliminate the ISI better than linear equalization receiver.
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Received: 10 October 2006
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