TY - JOUR
T1 - Expanded Multiband Super-Nyquist CAP Modulation for Highly Bandlimited Organic Visible Light Communications
AU - Chvojka, Petr
AU - Haigh, Paul Anthony
AU - Minotto, Alessandro
AU - Burton, Andrew
AU - Murto, Petri
AU - Genene, Zewdneh
AU - Mammo, Wendimagegn
AU - Andersson, Mats R.
AU - Wang, Ergang
AU - Ghassemlooy, Zabih
AU - Cacialli, Franco
AU - Darwazeh, Izzat
AU - Zvanovec, Stanislav
PY - 2020/6
Y1 - 2020/6
N2 - In this article, we experimentally demonstrate a novel expanded nonorthogonal multiband super-Nyquist carrier-less amplitude and phase (m-ESCAP) modulation for bandlimited organic visible light communication (VLC) systems. The proposed scheme has the same bandwidth requirement as the conventional m-CAP while breaking the orthogonality between subcarriers by purposely overlapping them. We compare m-ESCAP with the conventional m-CAP and a compressed nonorthogonal version of m-CAP (m-SCAP) in terms of measured bit error rate (BER) performance, bit rates, and spectral efficiencies. We show that the m-ESCAP system offers improvement in the bit rate of ∼10% and 20% compared to the m-CAP and m-SCAP, respectively, and in the spectral efficiency of ∼20% compared to m-CAP. These gains are achieved at the cost of increased BER, which, however, remains below the 7% forward error correction limit.
AB - In this article, we experimentally demonstrate a novel expanded nonorthogonal multiband super-Nyquist carrier-less amplitude and phase (m-ESCAP) modulation for bandlimited organic visible light communication (VLC) systems. The proposed scheme has the same bandwidth requirement as the conventional m-CAP while breaking the orthogonality between subcarriers by purposely overlapping them. We compare m-ESCAP with the conventional m-CAP and a compressed nonorthogonal version of m-CAP (m-SCAP) in terms of measured bit error rate (BER) performance, bit rates, and spectral efficiencies. We show that the m-ESCAP system offers improvement in the bit rate of ∼10% and 20% compared to the m-CAP and m-SCAP, respectively, and in the spectral efficiency of ∼20% compared to m-CAP. These gains are achieved at the cost of increased BER, which, however, remains below the 7% forward error correction limit.
KW - Digital signal processing
KW - multiband carrier-less amplitude and phase (CAP) modulation
KW - nonorthogonal
KW - organic light emitting diode (LED)
KW - visible light communications (VLC)
UR - http://www.scopus.com/inward/record.url?scp=85074829019&partnerID=8YFLogxK
U2 - 10.1109/JSYST.2019.2939026
DO - 10.1109/JSYST.2019.2939026
M3 - Article
AN - SCOPUS:85074829019
SN - 1932-8184
VL - 14
SP - 2544
EP - 2550
JO - IEEE SYSTEMS JOURNAL
JF - IEEE SYSTEMS JOURNAL
IS - 2
ER -