<span>One of the major problems that faces any wireless communication system apply multicarrier modulation technology is large Peak-to-Average Power Ratio (PAPR). There are divers PAPR reduction methods to solve this problem. Tone Reservation (TR) scheme one most famous techniques in which a peak cancelling signal added original such way will reduce. Companding another easy technique comp...

Tone Reservation (TR) is one of the well-known methods for PAPR reduction of Orthogonal Frequency Division Multiplexing (OFDM) systems. In this method some sub-carriers are reserved for PAPR reduction and the symbols in these sub-carriers are selected such that the PAPR of the OFDM frame is minimized. In this paper, the iterative algorithm introduced earlier for TR method in single antenna OFDM...

Filter bank multi-carrier with offset quadrature amplitude modulation (FBMC-OQAM) system is a very efficient multicarrier technique for 5G, but it suffers as all multicarriers designs from large peak-to-average power ratio (PAPR). Tone reservation (TR) method designed to solve this problem by reserving several subcarriers called tones in the frequency domain generate cancellation signal time el...

In a fast fading channel, the orthogonality of the two consecutive Space Time Block Codes (STBC)-Orthogonal Frequency Division Multiplexing ( OFDM) symbols will be destroyed and the received signals cannot be perfectly separated. TR(Tone Reservation) is a technique designed to combat this problem by reserving a number of carries(tone) in the frequency domain to generate a cancellation signal in...

본 논문은 직교 주파수 분할 다중 반송파 (OFDM; orthogonal frequency division modulation) 시스템의 최대 전력 대 평균 전력 비율 (PAPR; peak to average-power ratio)을 감소하기 위한 톤 예약 기법 (TR; tone reservation)에서 최고 줄임 톤 (PRT; peak reduction tone) 집합을 적응적으로 적용하는 새로운 방법을 제안한다. TR 기법은 PRT 집합의 크기가 커질수록 PAPR 감소성능이 뛰어난 역관계가 존재한다. OFDM신호의 PAPR을 감소시키기 위해서는 높은 톤 비율을 적용해서 많은 톤을 PRT로 선택해서 PAPR을 감소시키면 데이터 전송효율이 떨어진다. 본 논문은 크기가 서로 다른 PRT 집합을 미리 선...

High peak to average power ration (PAPR) in orthogonal frequency division multiplexing (OFDM) is an important problem, which increase the cost and complexity of high amplifiers. One techniques used reduce PAPR OFDM system tone reservation method (TR). In our work we propose a modified decrease with low compared conventional TR by process amplitudes at same time. An image size 128×128 as source ...

One of the major drawbacks of OFDM is high Peak to-Average Power Ratio (PAPR) which can result in poor power efficiency and serious distortion in the transmitter amplifier. Tone Reservation (TR) is a technique designed to combat this problem by reserving a number of carriers (tones) in the frequency domain to generate a cancellation signal in the time domain to remove high peaks. However TR can...

The tone reservation (TR) technique is an efficient method to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. Although the weighted tone reservation (WTR) approach has been proposed as a potentially promising way to reduce the peak power, it suffers from high peak regrowth in the non-peak region of the transmitted signal. In addition, ...

This paper presents the comparative study of different crest factor reduction techniques such as Clipping, Block coding, Partial Transmit Sequences (PTS), Tone Reservation (TR) and Tone Injection, Selective Mapping, Interleaving, Active Constellation Extension (ACE) and Peak Windowing, clipping has been identified as the best technique for Peak-to-Average Power Ratio reduction as it does not re...

The high peak-to-average power ratio (PAR) of the transmit signal is considered to be one major drawback of orthogonal frequency-division multiplexing (OFDM) systems. This paper analyzes the tone reservation (TR) technique for PAR reduction. It is shown that the good performance of TR is paid with an increase in average transmit power. Therefore, an extension of the TR scheme is considered, whi...