Title :
Frequency-Domain Residual Interference Cancellation in Cyclic Prefix Assisted Single-carrier Communications
Author :
Wei, Li ; Ming, Chen ; Cheng, Shixing ; Wang, Haifeng
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing
Abstract :
Cyclic prefix (CP) has been applied in the single-carrier systems to resist the inter-block interference (IBI) due to the frequency selective fading channel and equalize the channel by one-tap frequency domain equalizer. However, there still exists the residual inter-symbol interference (ISI) due to imperfect channel equalization, which severely degrades the system performance. In this paper the residual ISI is analyzed in CP-SC with linear minimum mean square error (LMMSE) equalizer. With the initial estimates of LMMSE equalizer, the interference cancellation (IC) technique is adopted to alleviate the residual ISI so that the system performance can be considerably improved
Keywords :
equalisers; fading channels; frequency-domain analysis; interference suppression; least mean squares methods; cyclic prefix assisted single-carrier communications; frequency selective fading channel; frequency-domain residual interference cancellation; imperfect channel equalization; inter-block interference; linear minimum mean square error equalizer; one-tap frequency domain equalizer; residual inter-symbol interference; Equalizers; Fading; Frequency domain analysis; Interference cancellation; Intersymbol interference; Mean square error methods; Mobile communication; Resists; System performance; Transceivers; Cyclic prefix; Frequency domain equalization; Interference Cancellation; Single-carrier;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1682779
