Abstract
Transmission of information over noncoherent Rician fading channels using M-ary orthogonal on/off FSK (OOFSK) signaling with phase modulation is considered. The capacity of this signaling scheme is obtained for both finite M and as M tends to infinity. Power efficiency is investigated when the transmitter is subject to a peak-to-average power ratio (PAR) limitation or a peak power limitation. It is shown that under PAR limitation, in contrast to average power limited systems, the minimum bit energy is not always achieved at zero spectral efficiency. It is concluded that, in these cases, operating at very low spectral efficiency should be avoided. On the other hand, it is demonstrated that if there is only a peak power limitation, power efficiency improves as one operates with smaller SNR and vanishing duty factor.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2068-2072 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 60 |
| Issue number | 3 |
| State | Published - 2004 |
| Externally published | Yes |
| Event | 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States Duration: Sep 26 2004 → Sep 29 2004 |
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics