Design of Enhanced Channel Equalizers for Adaptive Zero-Guard-Interval CO-OFDM Systems

2015 ◽  
Author(s):  
Wei Wang ◽  
Qunbi Zhuge ◽  
Yuliang Gao ◽  
David V. Plant
Keyword(s):  
Ofdm Systems ◽  
Guard Interval ◽  
Channel Equalizers

Enhanced Channel Equalizers for Adaptive Zero-Guard-Interval CO-OFDM Systems

2015 ◽  
Vol 27 (16) ◽  
pp. 1721-1724 ◽  
Author(s):  
Wei Wang ◽  
Qunbi Zhuge ◽  
Yuliang Gao ◽  
Meng Qiu ◽  
Mathieu Chagnon ◽  
...  
Keyword(s):  
Ofdm Systems ◽  
Guard Interval ◽  
Channel Equalizers

The Application of Partial Response Window in OFDM Systems without Guard Interval

2014 ◽  
Vol 610 ◽  
pp. 867-877
Author(s):  
Li Jun Zhang ◽  
Yu Wang ◽  
Qiu Yu Zhu
Keyword(s):  
Partial Response ◽  
Frequency Spectrum ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Efficiency ◽  
Bandwidth Efficiency ◽  
Frequency Division ◽  
Ofdm Systems ◽  
Guard Interval ◽  
Response Window ◽  
The Time Domain

The guard interval (GI) filling with cyclic prefix (CP) is inserted in the conventional orthogonal frequency division multiplexing (OFDM) system in order to be free of the inter-symbol interference (ISI). The frequency spectrum leakage out of band is mitigated by using the time-domain windowing method. Meanwhile, the GI-free OFDM have been studied in order to achieve high efficiency of bandwidth usage. This paper addresses the windowing method of partial response function for this case. It is shown that the information data can be detected precisely and the frequency spectrum leakage is mitigated without loss of bandwidth efficiency.

A multiple guard interval based frequency error detector for OFDM systems

2000 ◽  
Vol 46 (2) ◽  
pp. 363-367 ◽  
Author(s):  
Hyunjae Kim ◽  
Hongku Kang ◽  
Wooncheol Hwang ◽  
Kiseon Kim
Keyword(s):  
Frequency Error ◽  
Ofdm Systems ◽  
Guard Interval ◽  
Error Detector
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