Low Complexity Data Decoding for SLM-Based OFDM Systems without Side Information

Park, Jihan; Hong, Eonpyo; Har, Dongsoo

doi:10.1109/lcomm.2011.041411.101946

Cited by 50 publications

(42 citation statements)

References 4 publications

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“…In summary, the ML detection approach requires a total of 24U N c RMs and 12U N c RAs. It can be noted that similar to studies in [21,24], these evaluations exclude both the computational and implementation complexities of channel estimation and channel interpolation procedures associated with the ML method.…”

Section: Based Detectionmentioning

confidence: 99%

A selective control information detection scheme for OFDM receivers

2016

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In wireless communications, both control information and payload (user-data) are concurrently transmitted and required to be successfully recovered. This paper focuses on block-level detection, which is applicable for detecting transmitted control information, particularly when this information is selected or chosen from a finite set of information that are known at both transmitting and receiving devices. Using an orthogonal frequency division multiplexing architecture, this paper investigates and evaluates the performance of a time-domain decision criterion in comparison with a form of Maximum Likelihood (ML) estimation method. Unlike the ML method, the proposed time-domain detection technique requires no channel estimation as it uses the correlation (in the time-domain) that exists between the received and the transmitted selective information as a means of detection. In comparison with the ML method, results show that the proposed method offers improved detection performance, particularly when the control information consists of at least 16. However, the implementation of the proposed method requires a slightly increased number of mathematical computations.

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Section: Based Detectionmentioning

confidence: 99%

A selective control information detection scheme for OFDM receivers

2016

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“…Additionally, many attempts in the literature have been made to solve the problem of increased computational complexity, since the size of OFDM blocks may be large and the number of phase sequences M and IFFT operations may be huge [58]- [61], when a substantial PAPR reduction is required. In order to address the problem of multiple IFFT operations, some new architectures have been proposed [60] [61], in which the frequency domain phase rotation operations are converted into time domain equivalent operations.…”

Section: Selective Mappingmentioning

confidence: 99%

An Overview of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

Wang¹,

Sun²,

Zhang³

2016

IJMNCT

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“…논문 [4] 의 방식도 식 (6)에 기초하여 위상 신호의 인덱 스를 검출한다. 다만, ML 방식과의 차이점은    에 해 당되는 파일럿 부반송파만을 이용하여 채널 응답의 추 정치  를 얻고,    에 해당되는 부반송파만을 식 (6)에 적용한다는 점이다.…”

Section:            unclassified

“…다만, ML 방식과의 차이점은    에 해 당되는 파일럿 부반송파만을 이용하여 채널 응답의 추 정치  를 얻고,    에 해당되는 부반송파만을 식 (6)에 적용한다는 점이다. 논문 [4] 의 위상 신호 인덱스 검출 방식을 식으로 표현하면 다음과 같다. …”

Section:            unclassified

A Coherent Phase Sequence Detection Scheme for SLM-based OFDM Systems without Side Information

Ryu¹,

Joo²

2016

Journal of the Institute of Electronics and Information Enginee

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In this paper, we consider selective mapping (SLM) based OFDM systems without side information, where SLM is one of the promising peak-to-average power ratio (PAPR) reduction techniques due to its simplicity and no distortion in the transmitted signal. First, we construct a new phase sequence where a part of phase sequence is replaced by an orthogonal sequence. Based on the proposed phase sequence, we propose a new scheme for detecting coherently the index of the phase sequence used in transmitter without side information. Computer simulation shows that the proposed detection scheme performs well in SLM-based OFDM systems, and specifically outperforms the existing ones when channel variation is relatively small between sub-carriers used in phase sequence detection.

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Low Complexity Data Decoding for SLM-Based OFDM Systems without Side Information

Cited by 50 publications

References 4 publications

A selective control information detection scheme for OFDM receivers

A selective control information detection scheme for OFDM receivers

An Overview of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

A Coherent Phase Sequence Detection Scheme for SLM-based OFDM Systems without Side Information

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