Abstract
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.
Original language | English |
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Pages (from-to) | 1463-1468 |
Number of pages | 6 |
Journal | IEICE Transactions on Communications |
Volume | E85-B |
Issue number | 8 |
Publication status | Published - 2002 Aug |
Keywords
- Data transmission
- Multimedia communication
- Satellite broadcasting
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering