TY - JOUR
T1 - Hybrid data transmission technique for multimedia satellite broadcasting
AU - Hamada, Masatoshi
AU - Adachi, Fumiyuki
PY - 2002/8
Y1 - 2002/8
N2 - A hybrid data transmission technique for multimedia satellite broadcasting is proposed. The main-channel data and sub-channel data are simultaneously transmitted using QPSK modulation and 2ASK modulation, respectively, but the latter modulation timing is offset by half the main-channel QPSK symbol length in time. The BER performance in a Gaussian channel, the transmission bandwidth, and the transmit power peak factor are theoretically analyzed for various impulse responses of the sub-channel transmit filter. It is found that the use of the sub-channel transmit filter having a sine impulse response minimizes the sub-channel BER while keeping the transmission bandwidth and the transmit power peak factor lower than those of CAPSK transmission.
AB - A hybrid data transmission technique for multimedia satellite broadcasting is proposed. The main-channel data and sub-channel data are simultaneously transmitted using QPSK modulation and 2ASK modulation, respectively, but the latter modulation timing is offset by half the main-channel QPSK symbol length in time. The BER performance in a Gaussian channel, the transmission bandwidth, and the transmit power peak factor are theoretically analyzed for various impulse responses of the sub-channel transmit filter. It is found that the use of the sub-channel transmit filter having a sine impulse response minimizes the sub-channel BER while keeping the transmission bandwidth and the transmit power peak factor lower than those of CAPSK transmission.
KW - Data transmission
KW - Multimedia communication
KW - Satellite broadcasting
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M3 - Article
AN - SCOPUS:0036705591
SN - 0916-8516
VL - E85-B
SP - 1463
EP - 1468
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
IS - 8
ER -