Computer Science ›› 2010, Vol. 37 ›› Issue (9): 90-93.
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LI Qi-lin,HU Su,WU Gang,ZHOU Ming-tian
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Abstract: Orthogonal frequency division multiplex(OFDM) is a good candidate for power line communication system,because it is effective against pulse noise, multipath delay and group delay. However, the drawbacks of the high peak-to-average power ratio and cyclic prefix lead OFDM system to have lower efficiency. Fortunately, Generalized Frequency Division Multiplex(GFDM) with good timcfrequcncy localisation can solve inter symbol interference(ISI) and inter carrier interference(ICI). Meanwhile,GFDM has higher spectrum efficiency because of no cyclic prefix.
Key words: OFDM, Offset QAM, Pulse shaping filter, Iterative channel estimation
LI Qi-lin,HU Su,WU Gang,ZHOU Ming-tian. Generalized Frequency Division Multiplex for Power Line Communication System[J].Computer Science, 2010, 37(9): 90-93.
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