A PAPR reduction scheme with residue number system for OFDM
نویسندگان
چکیده
منابع مشابه
A PAPR reduction scheme with residue number system for OFDM
The peak-to-average power (PAPR) is one of the main challenges in multicarrier transmissions. Aiming at reducing the PAPR, we propose a residue number system (RNS)-based OFDM parallel transmission scheme. The key idea of the proposed scheme is to utilize the parallel property of RNS to convert the input signals into the parallel smaller residue signals while utilizing the characteristic of RNS ...
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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...
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Orthogonal frequency division multiplexing (OFDM) has become a promising method for many wireless communication applications. However, one main drawback of OFDM systems is the high peak-to-average power ratio (PAPR). Selected mapping (SLM) is a well-known technique to decrease the problem of high PAPR in OFDM systems. In this method, transmitter is obliged to send some bits named side informati...
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Increased data rates and reliability are the two key factors required to support emerging multimedia applications and new communications technologies. The two techniques used in high data rate transmission are orthogonal frequency division multiplexing (OFDM) and multiple-input multiple-output (MIMO) scheme. The OFDM is used to mitigate the problem of inter symbol interference (ISI) and provide...
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Combination of multiple-input multiple-output (MIMO) with orthogonal frequency division multiplexing (OFDM) has become a promising candidate for high performance wireless communications. However one major disadvantage of MIMO-OFDM systems lies in a prohibitively large peak-to-average power ratio (PAPR) of the transmitted signal on each antenna. In this paper we extend from SISO to MIMO systems ...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2013
ISSN: 1687-1499
DOI: 10.1186/1687-1499-2013-156