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Volume 31 Issue 9
Dec.  2010
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Zhang Ai-min, Lin Jing, Li Xiu-lin. Robust Cyclic Adaptive Beamforming under Cycle Frequency Error[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1393-1397.
Citation: Liao Xue-wen, Zhu Shi-hua, Zeng Er-lin. Receive Diversity and Equalization in High-data-rate Transmitted-Reference Ultra-Wideband Systems[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2157-2160. doi: 10.3724/SP.J.1146.2007.00660

Receive Diversity and Equalization in High-data-rate Transmitted-Reference Ultra-Wideband Systems

doi: 10.3724/SP.J.1146.2007.00660
  • Received Date: 2007-09-06
  • Rev Recd Date: 2009-07-06
  • Publish Date: 2009-09-19
  • In high data rate Transmitted-Reference (TR) Ultra-WideBand (UWB) systems, the conventional autocorrelation receivers introduce the second-order Inter-Symbol Interference (ISI). This paper demonstrates that, through multiple antennas receive and Equal Gain Combining (EGC) significant diversity gain can be obtained. Furthermore, the multiple antennas combination can eliminate the BER floor with the alleviation of the model nonlinearities. The combined system can be simplified to a linear ISI model and the complexity of channel modeling and equalizer can be reduced greatly via a data-aided adaptive algorithm. The performance gap between the approximate linear model and the nonlinear model diminishes with increasing antennas.
  • Hoctor R and Tomlinson H. Delay-hopped transmittedreferenceRF communications. Proc. of UWBST, Baltimore,MD, 2002: 265-270.[2]Dang Q H, Trindade A, and Van Veen Der. Signal model andreceiver algorithms for a transmit-reference ultra-widebandcommunication system[J].IEEE Journal on Selected Area inCommunications.2006, 24(4):773-779[3]Witrisal K, Leus G, Pausini M, and Krall C. Equivalentsystem model and equalization of differential impulse radioUWB systems[J].IEEE Journal on Selected Area inCommunications.2005, 23(9):1851-1862[4]Romme J and Witrisal K. Impact of UWB transmittedreferencemodulation on linear equalization on-linear ISIchannels. Proc. IEEE Vehicular Technology Conference,Melbourne, Australia, 2006: 1436-1439.[5]Schetzen M. Theory of pth-order inverses of nonlinearsystems[J].IEEE Transactions on Circuits Syst.1976, 23(5):285-291[6]Nowak R D and Van Veen B D. Volterra filter equalization: Afixed point approach[J].IEEE Transactions on SignalProcessing.1997, 45(2):377-388[7]Wang Yue and Dong Xiao-dai. A time-division multipleaccessSC-FDE system with IBI suppression for UWBcommunications[J].IEEE Journal on Selected Area inCommunications.2006, 24(4):920-926
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