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Myonghee Park, Kyunbyoung Ko, Hwasun Yoo and Daesik Hong, "Performance analysis of OFDMA uplink systems with symbol timing misalignment", IEEE Comm. Letters, Aug 2003
[IEEE Commun. Lett.]
조회 32961
Status : | Published |
---|---|
Date : | 2003-08 |
Title : | Performance analysis of OFDMA uplink systems with symbol timing misalignment |
Authors : | Myonghee Park, Kyunbyoung Ko, Hwasun Yoo and Daesik Hong |
Journal : | IEEE Communications Letters |
Abstract : | This letter presents our investigation for the effect of symbol timing errors in orthogonal frequency-division multiple access (OFDMA) uplink systems. We express the symbol timing errors between users as the symbol timing misalignments with respect to the desired user. Then, we derive an explicit expression of the signal-to-noise ratio (SNR) as a function of the maximum value of the symbol timing misalignments. Analyses and simulation results show that, to achieve an SNR of 20 dB, the maximum value of the symbol timing misalignments must be less than the cyclic prefix duration plus 6.25% of the useful symbol duration. Based on the resulting SNR degradation, we evaluate the SNR gain with guard subcarriers in order to mitigate the effect of the symbol timing misalignments. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1220274 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...afa4932515 |
Myonghee Park; Kyunbyoung Ko; Hwasun Yoo; Daesik Hong; , "Performance analysis of OFDMA uplink systems with symbol timing misalignment," Communications Letters, IEEE , vol.7, no.8, pp.376-378, Aug. 2003
doi: 10.1109/LCOMM.2003.815671
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1220274&isnumber=27419
doi: 10.1109/LCOMM.2003.815671
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1220274&isnumber=27419
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