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Ri, Jong Sam
- New Analysis Of Optimal Guard Interval For A MC-CDMA System
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Authors
Jong Sam Ri
1,
Yong Chan Ri
2
Affiliations
1 Kim Chaek University of Technology, KP
2 College of Information Engineering, Wonsan Jogunsil University of Technology, KP
1 Kim Chaek University of Technology, KP
2 College of Information Engineering, Wonsan Jogunsil University of Technology, KP
Source
ICTACT Journal on Communication Technology, Vol 10, No 3 (2019), Pagination: 2046-2051Abstract
In MC-CDMA system, the guard interval (GI) generally is longer than the channel impulse response to mitigate inter symbol interference (ISI). But in this environment, SNR is decreased and BER is high. So, some approaches to determine the optimal GI length under SNR and BER constraints have been proposed. In this paper, we propose the new theoretical expression that can determine optimal guard interval based on modeling the channel uniform distributed exponential decay channel, when the system parameters such as RMS delay spread and the channel parameters as the number of sub-carriers are given for MC-CDMA system.Keywords
Optimum Guard Interval, Multicarrier Code Division Multiple Access, Inter Symbol Interference, Root-Mean-Square Delay Spread.
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