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 |
|---|---|
| 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