Abstract
In the compressing and expanding (companding) method, at the transmitter, baseband signals are compressed for reducing peak-to-average power (PAPR) and at the receiver, the received signals are expanded for removing the distortion caused by the compressing. However, since the signals are distorted by the band pass filter (BPF), the high power amplifier (HPF), and the channel fading, the distortion caused by the compressing cannot be removed by expanding the received signals. We propose the novel companding system that compensates the distortions caused by not only the compressing but also the BPF, the HPF, and the fading. From the computer simulation, we show that the proposed companding system achieves better BER than the conventional one with the same level of the spectrum in the out-of-bandwidth.
| Original language | English |
|---|---|
| Title of host publication | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC |
| Pages | 1075-1079 |
| Number of pages | 5 |
| Volume | 2 |
| Publication status | Published - 2004 |
| Externally published | Yes |
| Event | 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004 - Barcelona, Spain Duration: 2004 Sep 5 → 2004 Sep 8 |
Other
| Other | 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004 |
|---|---|
| Country | Spain |
| City | Barcelona |
| Period | 04/9/5 → 04/9/8 |
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Keywords
- Companding method
- Peak power problem
ASJC Scopus subject areas
- Engineering(all)
Cite this
Companding system with time clustering. / Takyu, Osamu; Ohtsuki, Tomoaki; Nakagawa, Masao.
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 2 2004. p. 1075-1079.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Companding system with time clustering
AU - Takyu, Osamu
AU - Ohtsuki, Tomoaki
AU - Nakagawa, Masao
PY - 2004
Y1 - 2004
N2 - In the compressing and expanding (companding) method, at the transmitter, baseband signals are compressed for reducing peak-to-average power (PAPR) and at the receiver, the received signals are expanded for removing the distortion caused by the compressing. However, since the signals are distorted by the band pass filter (BPF), the high power amplifier (HPF), and the channel fading, the distortion caused by the compressing cannot be removed by expanding the received signals. We propose the novel companding system that compensates the distortions caused by not only the compressing but also the BPF, the HPF, and the fading. From the computer simulation, we show that the proposed companding system achieves better BER than the conventional one with the same level of the spectrum in the out-of-bandwidth.
AB - In the compressing and expanding (companding) method, at the transmitter, baseband signals are compressed for reducing peak-to-average power (PAPR) and at the receiver, the received signals are expanded for removing the distortion caused by the compressing. However, since the signals are distorted by the band pass filter (BPF), the high power amplifier (HPF), and the channel fading, the distortion caused by the compressing cannot be removed by expanding the received signals. We propose the novel companding system that compensates the distortions caused by not only the compressing but also the BPF, the HPF, and the fading. From the computer simulation, we show that the proposed companding system achieves better BER than the conventional one with the same level of the spectrum in the out-of-bandwidth.
KW - Companding method
KW - Peak power problem
UR - http://www.scopus.com/inward/record.url?scp=11244320706&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=11244320706&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:11244320706
VL - 2
SP - 1075
EP - 1079
BT - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
ER -