Combining of Cyclically Delayed Signals: A Low-Complexity Scheme for PAPR Reduction in OFDM Systems

Wang, Jin Soo; Lee, Ji Hye; Park, Jae Cheol; Song, Iickho; Kim, Yun Hee

doi:10.1109/tbc.2010.2060174

Cited by 17 publications

(10 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The computational complexity reduction ratio (CCRR) is tabulated for various values of n-k, M and N. For lower value of n-k up to 72% CCRR is achieved. In [19], a scheme is proposed to generate a candidate signal by combining OFDM signals and its cyclically delayed version of varying delay and phase, same PAPR performance is achieved at reduced complexity of 50% to 76%. In [20], additive sequences are used for generation of new candidates from the existing one, scheme achieves a CCRR up to 88% for the multiplication and78% for addition at M=40.…”

Section: Peak Windowingmentioning

confidence: 99%

Various Techniques to Reduce PAPR in OFDM Systems: A Survey

Bisht¹,

Joshi²

2015

IJSIP

View full text Add to dashboard Cite

show abstract

Section: Peak Windowingmentioning

confidence: 99%

Various Techniques to Reduce PAPR in OFDM Systems: A Survey

Bisht¹,

Joshi²

2015

IJSIP

View full text Add to dashboard Cite

show abstract

“…MIMO). However, an efficient linear amplifier for the RF transmitter is certainly a main issue for research, since the candidate scheme (OFDMA) exhibits high PAPR [20].…”

Section: B Overview Of Lte Air-interface Technology In the Downlinkmentioning

confidence: 99%

On Interference Avoidance Through Inter-Cell Interference Coordination (ICIC) Based on OFDMA Mobile Systems

Kosta

Hunt

Quddus

et al. 2013

IEEE Commun. Surv. Tutorials

152

View full text Add to dashboard Cite

Abstract-The widely accepted OFDMA air interface technology has recently been adopted in most mobile standards by the wireless industry. However, similar to other frequencytime multiplexed systems, their performance is limited by intercell interference. To address this performance degradation, interference mitigation can be employed to maximize the potential capacity of such interference-limited systems. This paper surveys key issues in mitigating interference and gives an overview of the recent developments of a promising mitigation technique, namely, interference avoidance through inter-cell interference coordination (ICIC). By using optimization theory, an ICIC problem is formulated in a multi-cell OFDMA-based system and some research directions in simplifying the problem and associated challenges are given. Furthermore, we present the main trends of interference avoidance techniques that can be incorporated in the main ICIC formulation. Although this paper focuses on 3GPP LTE/LTE-A mobile networks in the downlink, a similar framework can be applied for any typical multi-cellular environment based on OFDMA technology. Some promising future directions are identified and, finally, the state-of-the-art interference avoidance techniques are compared under LTEsystem parameters.Index Terms-ICIC, Inter-cell resource allocation, Selective interference avoidance, Selective frequency/power reuse.

show abstract

“…In any case, in the technique a foreseen PAPR decreasing which have a lot of iterations is mandatory. To diminish the high PAPR of the OFDM, various PAPR lessening frameworks containing the partial transmit sequence (PTS), selective mapping (SLM), and nonlinear companding have been anticipated [4,5]. The partial transmit sequence (PTS) is a deception less framework on the premise of joining signal sub blocks that are phase moved by consistent phase elements.…”

Section: Introductionmentioning

confidence: 99%

Adaptive ABC Algorithm Based PTS Scheme for PAPR Reduction in MIMO-OFDM

Maddala¹,

Reddy²

2017

IJIES

View full text Add to dashboard Cite

Abstract:The OFDM signals which have a broad peak-to-average power ratio is a basic prerequisite to be settled. The Orthogonal Frequency Division Multiplexing (OFDM) traces the Partial transmit sequences (PTS) which is one among the appealing procedures to diminish the peak-to-average power ratio (PAPR). An issue of modern computational multifaceted nature happens in The PTS scheme when prevalent quantities of sub blocks were consumed. In this article, another PTS scheme has been industrialized so as to decline the PAPR by picking the ideal stage factor esteem by means a versatile ABC optimization process. At the point when associated with MIMO-OFDM structures with a broad assortment of phase factors ABC based PTS calculation achieves about elite after simulation. It can essentially diminish the computational intricacy for bigger PTS subblocks and offers lower PAPR in the meantime. The anticipated philosophy is connected in the working stage of MATLAB and the utilitarian solutions were incited and researched.

show abstract

Combining of Cyclically Delayed Signals: A Low-Complexity Scheme for PAPR Reduction in OFDM Systems

Cited by 17 publications

References 13 publications

Various Techniques to Reduce PAPR in OFDM Systems: A Survey

Various Techniques to Reduce PAPR in OFDM Systems: A Survey

On Interference Avoidance Through Inter-Cell Interference Coordination (ICIC) Based on OFDMA Mobile Systems

Adaptive ABC Algorithm Based PTS Scheme for PAPR Reduction in MIMO-OFDM

Contact Info

Product

Resources

About