The search functionality is under construction.
The search functionality is under construction.

Effects of PAPR Reduction Based on Peak Limiter in IEEE802.16e Based OFDM System

Yu TAKASE, Osamu MUTA, Yoshihiko AKAIWA

  • Full Text Views

    0

  • Cite this

Summary :

A major drawback in OFDM systems is that the transmit-signal exhibits a high Peak-to-Average Power Ratio (PAPR) which causes nonlinear distortion at the output of power amplifier. To achieve high efficiency in OFDM systems, it is important to suppress PAPR of the transmit signal. In IEEE802.16e (mobile WiMAX) based systems, it is desirable to employ a simple PAPR reduction method such as clipping & filtering (C&F) or peak windowing (PW). The purpose of this paper is to evaluate PAPR reduction performance of C&F and PW and compare them in an IEEE802.16e based OFDM system. In addition, we also show a repeated PW method which reduces PAPR by repeatedly applying a smooth window function to the transmit signal. Computer simulation results show that the repeated PW can achieve almost the same PAPR reduction performance as that of the repeated C&F with significantly lower computational complexity.

Publication
IEICE TRANSACTIONS on Communications Vol.E94-B No.5 pp.1467-1471
Publication Date
2011/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E94.B.1467
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

Authors

Keyword