Abstract
The sensitivity of high-level modulation schemes to channel nonlinearities in digital radio systems is investigated. The QAM schemes are less sensitive to nonlinearities when operated in the offset mode. Comparison of QAM and QPRS schemes reveals that the latter need a lower carrier to noise ratio (CNR) than corresponding QAM schemes for identical operating conditions. When the nonlinearities are not severe, the degradation in performance is controlled by AM/PM characteristic of the amplifier.
| Original language | English |
|---|---|
| Title of host publication | Conference Record - International Conference on Communications |
| Publisher | IEEE |
| Pages | 1632-1635 |
| Number of pages | 4 |
| Publication status | Published - 1986 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Media Technology
Cite this
PERFORMANCE COMPARISON OF HIGH LEVEL QAM & QPRS SCHEMES IN NONLINEAR RADIO CHANNELS. / Sreenath, K.; Sasase, Iwao; Feher, Kamilo.
Conference Record - International Conference on Communications. IEEE, 1986. p. 1632-1635.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - PERFORMANCE COMPARISON OF HIGH LEVEL QAM & QPRS SCHEMES IN NONLINEAR RADIO CHANNELS.
AU - Sreenath, K.
AU - Sasase, Iwao
AU - Feher, Kamilo
PY - 1986
Y1 - 1986
N2 - The sensitivity of high-level modulation schemes to channel nonlinearities in digital radio systems is investigated. The QAM schemes are less sensitive to nonlinearities when operated in the offset mode. Comparison of QAM and QPRS schemes reveals that the latter need a lower carrier to noise ratio (CNR) than corresponding QAM schemes for identical operating conditions. When the nonlinearities are not severe, the degradation in performance is controlled by AM/PM characteristic of the amplifier.
AB - The sensitivity of high-level modulation schemes to channel nonlinearities in digital radio systems is investigated. The QAM schemes are less sensitive to nonlinearities when operated in the offset mode. Comparison of QAM and QPRS schemes reveals that the latter need a lower carrier to noise ratio (CNR) than corresponding QAM schemes for identical operating conditions. When the nonlinearities are not severe, the degradation in performance is controlled by AM/PM characteristic of the amplifier.
UR - http://www.scopus.com/inward/record.url?scp=0022900481&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022900481&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0022900481
SP - 1632
EP - 1635
BT - Conference Record - International Conference on Communications
PB - IEEE
ER -