Abstract
Future broadband mobile communication systems are necessary to achieve the bit rates of 100Mbit/s. Orthogonal Frequency Division Multiplexing (OFDM) transmission is an attractive technology because it can remove the influence of frequency selective fading in broad-band transmission by adding a suitable guard interval to each OFDM symbol. However, peak-to-average power ratio (PAPR) is very large in OFDM transmission. In this paper, we propose a new PAPR reduction method which can be applied even when unusable bands are inside the system band. In the proposed method, peak reduction signals are generated by iterative signal processing only in the usable frequency band, and filtering to remove out-of-band components of the peak reduction signals is incorporated into the iterative signal processing. The results of computer simulation show that the proposed method can effectively reduce peak power without expanding the spectrum both outside the system band and into unusable bands inside the system band. By using the proposed method, the broadband mobile communication system with low peak power and high flexibility of frequency band use can be realized.
| Original language | English |
|---|---|
| Pages (from-to) | 1897-1902 |
| Number of pages | 6 |
| Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| Volume | E88-A |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2005 |
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Keywords
- Iterative signal processing
- Mobile radio communications
- OFDM transmission
- PAPR
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Hardware and Architecture
- Information Systems
Cite this
Peak power reduction method using adaptive peak reduction signal level control for OFDM transmission systems. / Tomisato, Shigeru; Hata, Vlasaharu.
In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E88-A, No. 7, 07.2005, p. 1897-1902.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Peak power reduction method using adaptive peak reduction signal level control for OFDM transmission systems
AU - Tomisato, Shigeru
AU - Hata, Vlasaharu
PY - 2005/7
Y1 - 2005/7
N2 - Future broadband mobile communication systems are necessary to achieve the bit rates of 100Mbit/s. Orthogonal Frequency Division Multiplexing (OFDM) transmission is an attractive technology because it can remove the influence of frequency selective fading in broad-band transmission by adding a suitable guard interval to each OFDM symbol. However, peak-to-average power ratio (PAPR) is very large in OFDM transmission. In this paper, we propose a new PAPR reduction method which can be applied even when unusable bands are inside the system band. In the proposed method, peak reduction signals are generated by iterative signal processing only in the usable frequency band, and filtering to remove out-of-band components of the peak reduction signals is incorporated into the iterative signal processing. The results of computer simulation show that the proposed method can effectively reduce peak power without expanding the spectrum both outside the system band and into unusable bands inside the system band. By using the proposed method, the broadband mobile communication system with low peak power and high flexibility of frequency band use can be realized.
AB - Future broadband mobile communication systems are necessary to achieve the bit rates of 100Mbit/s. Orthogonal Frequency Division Multiplexing (OFDM) transmission is an attractive technology because it can remove the influence of frequency selective fading in broad-band transmission by adding a suitable guard interval to each OFDM symbol. However, peak-to-average power ratio (PAPR) is very large in OFDM transmission. In this paper, we propose a new PAPR reduction method which can be applied even when unusable bands are inside the system band. In the proposed method, peak reduction signals are generated by iterative signal processing only in the usable frequency band, and filtering to remove out-of-band components of the peak reduction signals is incorporated into the iterative signal processing. The results of computer simulation show that the proposed method can effectively reduce peak power without expanding the spectrum both outside the system band and into unusable bands inside the system band. By using the proposed method, the broadband mobile communication system with low peak power and high flexibility of frequency band use can be realized.
KW - Iterative signal processing
KW - Mobile radio communications
KW - OFDM transmission
KW - PAPR
UR - http://www.scopus.com/inward/record.url?scp=26044467138&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=26044467138&partnerID=8YFLogxK
U2 - 10.1093/ietfec/e88-a.7.1897
DO - 10.1093/ietfec/e88-a.7.1897
M3 - Article
AN - SCOPUS:26044467138
VL - E88-A
SP - 1897
EP - 1902
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
SN - 0916-8508
IS - 7
ER -