Effects of amplitude clipping on signal-to-noise ratio and spectral splatter of multicarrier DS-CDMA

Author

Yingzi, Luan ; Jiawei, Yang ; Jiandong, Li

Author_Institution

Inst. Inf. Sci., Xidian Univ., Xi´´an, China

Volume

1

fYear

2000

fDate

2000

Firstpage

785

Abstract

Multicarrier direct sequence code-division multiple access (MC-DS-CDMA) has been adopted as one of the proposals in IMT-2000. A main disadvantage of multicarrier modulation is that it exhibits a high peak-to-average power ratio (PAPR). This paper investigates the effects of amplitude clipping on multicarrier DS-CDMA signals. It is shown that considerable reductions of PAPR are possible at the expense of limited inband spectral distortion and out-of-band clip noise emissions. The amount of inband distortion can be explained as signal-to-noise ratio (SNR). With PAPR decreasing, SNR abates. A trade-off point is chosen

Keywords

cellular radio; code division multiple access; modulation; spread spectrum communication; IMT-2000; MC-DS-CDMA; SNR; amplitude clipping; inband spectral distortion; multicarrier DS-CDMA; multicarrier direct sequence code-division multiple access; out-of-band clip noise emissions; peak-to-average power ratio; signal-to-noise ratio; spectral splatter; Bandwidth; Filters; Frequency conversion; Information science; Multiaccess communication; Peak to average power ratio; Proposals; Signal to noise ratio; Transmitters; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-6394-9

Type

conf

DOI

10.1109/ICCT.2000.889313

Filename

889313