TY - GEN
T1 - Parallel combinatory multiple-subcarrier optical communication systems
AU - Kitamoto, Norio
AU - Ohtsuki, Tomoaki
PY - 2002/12/1
Y1 - 2002/12/1
N2 - We propose a parallel combinatory multiple-subcarrier (PC-MS) optical communication system. The proposed system with N subcarriers selects at each symbol interval a subset of U subcarriers and transmits ⌊log2 (N/U)⌋ bits for the selected subset. The other N - U = Npc subcarriers are modulated by points from an M-PSK signal constellation. Thus, the proposed system can transmit more information at each symbol interval than the conventional MS system with N subcarriers. In addition the proposed system can decrease the bias that must be added to the MS electrical signal, because the number of subcarriers other than null subcarriers is smaller than that in the conventional MS system and thus the minimum power is larger. Therefore, the proposed system can decrease the required energy per bit.
AB - We propose a parallel combinatory multiple-subcarrier (PC-MS) optical communication system. The proposed system with N subcarriers selects at each symbol interval a subset of U subcarriers and transmits ⌊log2 (N/U)⌋ bits for the selected subset. The other N - U = Npc subcarriers are modulated by points from an M-PSK signal constellation. Thus, the proposed system can transmit more information at each symbol interval than the conventional MS system with N subcarriers. In addition the proposed system can decrease the bias that must be added to the MS electrical signal, because the number of subcarriers other than null subcarriers is smaller than that in the conventional MS system and thus the minimum power is larger. Therefore, the proposed system can decrease the required energy per bit.
KW - Infrared
KW - Multiple-subcarrier
KW - Optical communication
UR - http://www.scopus.com/inward/record.url?scp=17044431198&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=17044431198&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2002.1045177
DO - 10.1109/PIMRC.2002.1045177
M3 - Conference contribution
AN - SCOPUS:17044431198
SN - 0780375890
SN - 9780780375895
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 998
EP - 1002
BT - 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
T2 - 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2002
Y2 - 15 September 2002 through 18 September 2002
ER -