2008 6th International Symposium on Communication Systems, Networks and Digital Signal Processing 2008
DOI: 10.1109/csndsp.2008.4610804
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Orthogonal frequency division multiplexing for indoor optical wireless communications using visible light LEDs

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Cited by 40 publications
(13 citation statements)
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“…The BER performance of ESIM-OFDM is analyzed in the presence of AWGN. It should be noted that as a more standardized approach, the length of cyclic prefix and suffix ratio is taken to be one fourth of the symbol length for the simulation design [20]. It should be noted that as a more standardized approach, the length of cyclic prefix and suffix ratio is taken to be one fourth of the symbol length for the simulation design [20].…”
Section: Simulation Analysis Of Esim-ofdmmentioning
confidence: 99%
“…The BER performance of ESIM-OFDM is analyzed in the presence of AWGN. It should be noted that as a more standardized approach, the length of cyclic prefix and suffix ratio is taken to be one fourth of the symbol length for the simulation design [20]. It should be noted that as a more standardized approach, the length of cyclic prefix and suffix ratio is taken to be one fourth of the symbol length for the simulation design [20].…”
Section: Simulation Analysis Of Esim-ofdmmentioning
confidence: 99%
“…Kanal frekans cevabı pilot alt taşıyıcılarında LS yöntemiyle kestirildikten sonra bilgi alt taşıyıcılarındaki kanal parametreleri hesaplanır. Kısa süre önce,dogrusal parçalı ara degerleyici, VLC kanallardaki DCO-OFDM sistemleri için de önerilmiştir [7]. Buna alternatif olarak, kanal kestirim noktalarına uygun düzgün ve sürekli polinomial ara degerleme teknigi kübik esnekşerit ara degerleme teknigidir [11].…”
Section: Si̇nyal Modeli̇unclassified
“…Bunun sonucu olarak, VLC sistemler için de kullanılabilir. [7]'de periyodik bir biçimde yerleştirilmiş pilot sembol tabanlı kanal kestirimi, VLC sistemleri için önerilmiştir. [8]'de ayrık Fourier dönüşümü (discrete Fourier taransform, DFT) sonrası kanal kestirimi DCO-OFDM sistemler için kanal tap sayısı bilindigi varsayılarak en küçük karaler (least squares, LS) kestirim performansını iyileştirmek için önerilmiştir.…”
Section: Introductionunclassified
“…Data rate is limited to 1-5 Mbps [14] by the switching times of LEDs, though is enough for location applications. When higher data rates are needed other modulations schemes as VPPM [15] or OFDM [16] can be used, though more complexity in both lamp driver and receiver is required.…”
Section: B Coding Schemementioning
confidence: 99%