Abstract
This paper presents the transmission performance of a class-IV partial-response signaling SSB system and proposes a method that can improve its power efficiency. A line code that has no dc component has been used in the SSB transmission of digital signals. The type of line code, such as a partial-response signaling, increases the modulation states, and as a result, decreases the power efficiency. To overcome this obstacle, a new demodulation method called "re-filtering and combining" is proposed on the assumption of orthogonal phase detection. The demodulated quadrature channel is re-filtered by a Hilbert filter and is combined with the in-phase channel. It is confirmed by computer simulations that the new demodulation method improves the BER performance and a 3 dB improvement of the power efficiency is obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 2255-2262 |
| Number of pages | 8 |
| Journal | IEICE Transactions on Communications |
| Volume | E85-B |
| Issue number | 10 |
| Publication status | Published - 2002 Oct |
Keywords
- Class-IV partial-response signaling
- Digital SSB
- Hilbert filter
- Power efficiency
- Spectrum efficiency
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications