Effects of PAPR Reduction Based on Peak Limiter in IEEE802.16e Based OFDM System
スポンサーリンク
概要
- 論文の詳細を見る
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.
論文 | ランダム
- 54.術後5年健存期間の後にリンパ節再発を来たした肺癌症例の検討 : 第57回日本肺癌学会関西支部会
- 50.肺癌の小腸転移巣切除後6年半生存中の1例 : 第57回日本肺癌学会関西支部会
- 9.局所進行型非小細胞肺癌に対するaccelerated hyperfractionation法による胸部放射線同時併用療法の経験 : 第57回日本肺癌学会関西支部会
- P-164 pm症例の予後についての検討
- E-80 縦隔悪性胚細胞性腫瘍に対する外科治療の検討