Showing 1-25 of 540 resultsfor "Index Terms":partial transmit sequence (PTS)
"Index Terms":partial transmit sequence (PTS)
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In this paper, we introduce a new partial transmit sequence (PTS) orthogonal frequency division multiplexing (OFDM) scheme with low computational complexity. In the proposed scheme, 2/sup n/-point inverse fast Fourier transform (IFFT) is divided into two parts. An input symbol sequence is partially transformed using the first l stages of IFFT into an intermediate signal sequence and the inte...Show More
PAPR reduction of OFDM system using PTS method with different modulation techniques
2014 International Conference on Electronics and Communication Systems (ICECS)
Year: 2014 | Conference Paper |
Cited by: Papers (5)
Orthogonal Frequency Division Multiplexing (OFDM) is multicarrier transmission technique. It is also a strong contender for fourth generation cellular and land mobile radio systems. One of the major drawbacks with this system is high Peak-To-Average power ratio (PAPR) at the output of OFDM modulator. So the system requires High power amplifier with large dynamic range. Many PAPR reduction schemes ...Show More
Proposal of PAPR reduction method for OFDM signal by optimized PTS combined with interleaving method
2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP)
Year: 2015 | Conference Paper |
Peak-to-average power ratio (PAPR) reduction of OFDM signal has been a subject of intense research in the last decade. In this paper, we propose an undistorted PAPR reduction method for OFDM systems, which combines the Interleaving Method and a modified Partial Transmit Sequence (PTS) method with the new phase rotation. The computational complexity of Interleaving Method is lower, compared w...Show More
Low-complexity PTS scheme based on phase factor sequences optimization
In this paper, a new partial transmit sequence (PTS) scheme with low computational complexity is proposed for the problems of high computational complexity in the conventional PTS method. By analyzing the relationship of candidate sequences in the PTS method under the interleaved partition method, it has been discovered that some candidate sequences generated by phase factor sequ...Show More
Semi-weighting PTS PAPR reduction method in OFDM systems by Modified Cuckoo Search algorithm
2017 International Conference on Wireless Communications, Signal Processing and Networking (WiSPNET)
Year: 2017 | Conference Paper |
In current scenario, to improve the performance of Orthogonal Frequency Division Multiplexing (OFDM) signals, numerous techniques are implemented. In that, Partial Transmit Sequence (PTS) shows a superior reduction and improvement compared to other approaches. This study focus on enhancing the enactment of PTS method with the advantage of Modified Cuckoo Search (M-CS) algorithm and Sem...Show More
A Novel Multi-Points Square Mapping Combined With PTS to Reduce PAPR of OFDM Signals Without Side Information
IEEE Transactions on Broadcasting
Cited by: Papers (39)
In this paper, we first propose a novel multi-points square mapping (MSM) scheme. Then, we describe in detail how to combine the proposed MSM scheme with conventional partial transmit sequence (C-PTS) scheme, named as M-PTS, to reduce the PAPR of OFDM signals. Compared with C-PTS, the proposed M-PTS scheme needs not to submit side information while keeping almost the same p...Show More
A novel combined SLM-PTS technique based on Genetic Algorithms for PAPR reduction in OFDM systems
2020 Second International Conference on Embedded & Distributed Systems (EDiS)
Year: 2020 | Conference Paper |
Cited by: Papers (3)
0FDM has today becoming the modulation of choice for most modern broadband communication systems in use, either wireline or wireless. The main reasons is that OFDM provides the best usage of the available frequency band which maximizes the spectral efficiency and also its robustness to the multipath fading channel. However, OFDM has a major drawback of having a large Peak-to-Average Power Ratio (P...Show More
Chaos-Based Partial Transmit Sequence Technique for Physical Layer Security in OFDM-PON
Xiaonan Hu;Xuelin Yang;Zanwei Shen;Hao He;Weisheng Hu;Chenglin Bai
IEEE Photonics Technology Letters
Cited by: Papers (84)
We propose and demonstrate a physical layer security scheme via chaotic partial transmit sequence (PTS) technique in orthogonal frequency-division multiplexing passive optical network (OFDM-PON). A 4-D hyper chaos is employed to generate the chaotic partition information, the chaotic phase weighing factors in PTS as well as the chaotic training sequence for OFDM symbol synchronization,...Show More
A new side-information free PTS scheme for PAPR reduction in OFDM systems
2012 IEEE 8th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)
Year: 2012 | Conference Paper |
Cited by: Papers (6)
Partial transmit sequences (PTS) is an efficient technique to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency division multiplexing (OFDM) systems. One main drawback of the conventional PTS method is the need of side information. When the side information is lost, the received data cannot be decoded correctly by the receiver. In this paper, we propose a new side-...Show More
PAPR reduction of OFDM signals using pseudo random PTS without side information
2013 International Conference on Communication and Signal Processing
Year: 2013 | Conference Paper |
Cited by: Papers (4)
PAPR reduction of OFDM signal has been a subject of intense research in the past decade. Many methods have been proposed to reduce the high PAPR problem. Partial transmit sequence (PTS) is one of the most popular peak-to-average power ratio (PAPR) reduction technique proposed for orthogonal frequency-division multiplexing (OFDM) systems. The Conventional PTS (C-PTS) is suffers fr...Show More
Phase factor combination scheme based on pipeline in time domain IP-PTS for PAPR reduction of OFDM systems
2009 15th Asia-Pacific Conference on Communications
Year: 2009 | Conference Paper |
Cited by: Papers (2)
Time domain interleaved partitioning partial transmit sequence method (TD-IP-PTS) needs only one inverse fast Fourier transform (IFFT) to reduce peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) system. However, for one long OFDM symbol, it will need waiting time and many registers to implement the combination of phase factor in TD-IP-PTS. Therefor...Show More
Effect of partition length variability on the performance of adjacent partitioing PTS in papr reduction of OFDM systems
Zeyid T. Ibraheem;Md. Mijanur Rahman;S. N. Yaakob;Mohammad Shahrazel Razalli;Rasim A. Kadhim
2014 IEEE Symposium on Computer Applications and Industrial Electronics (ISCAIE)
Year: 2014 | Conference Paper |
Cited by: Papers (3)
Peak-to-Average Power Ratio (PAPR) reduction is an attractive research topic among the OFDM transmission research communities. Partial Transmit Sequence (PTS) has been a promising candidate out of the proposed PAPR reduction techniques without any distortion. In any PTS system, partitioning of the OFDM frame into disjoint sub-blocks is a crucial step. Adjacent partitioning (AP) is a ra...Show More
Peak-to-Average Power Ratio Reduction of OFDM Signals Using PTS Scheme With Low Computational Complexity
IEEE Transactions on Broadcasting
Cited by: Papers (71)
Partial transmit sequences (PTS) is one of the most attractive schemes to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. However, the conventional PTS scheme requires an exhaustive searching over all combinations of allowed phase factors. Consequently, the computational complexity increases exponentially with the number of th...Show More
A Genetic-Simulated Annealing Algorithm Based on PTS Technique for PAPR Reduction in OFDM System
2014 IEEE Symposium on Computer Applications and Communications
Year: 2014 | Conference Paper |
Cited by: Papers (5)
In this paper, we propose a genetic-simulated annealing algorithm (GSAA) with partial transmit sequence (PTS) technique (GSAA-PTS) to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency division multiplexing (OFDM) system. Genetic algorithm based PTS method (GA-PTS) is a novel and suboptimal PAPR reduction approach, which has lower computational load than...Show More
On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems
IEEE Transactions on Broadcasting
Cited by: Papers (32)
Orthogonal frequency division multiplexing (OFDM) signals have high peak-to-average power ratio (PAPR), which causes distortion when OFDM signal passes through a nonlinear high power amplifier. A partial transmit sequence (PTS) scheme is one of the typical PAPR reduction methods. A cyclic shifted sequences (CSSs) scheme is evolved from the PTS scheme to improve the PAPR reduction perfo...Show More
A new proposed peak-to-average power reduction parameter to evaluate SLM and PTS as OFDM PAPR reduction schemes
2013 IEEE Student Conference on Research and Developement
Year: 2013 | Conference Paper |
Two techniques of the most known ones for peak to average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) are selected mapping (SLM) and partial transmit sequence (PTS). Both schemes were proposed as distortion less PAPR reduction algorithms. However, it has been an argument to prove which scheme is the most efficient. In this paper, we propose a new PAPR re...Show More
Low Complexity SLM-PTS Method for Reduction of PAPR in OFDM Systems
2014 3rd International Conference on Eco-friendly Computing and Communication Systems
Year: 2014 | Conference Paper |
Orthogonal frequency division multiplexing (OFDM) is an attractive current technology for wireless communication systems due to its high spectral efficiency. One major disadvantage associated with OFDM is high peak to average power ratio (PAPR). It needs a large back-off high power amplifier (HPA) else degradation of bit error rate (BER) occurred. Selective mapping (SLM) is an effective technique ...Show More
Improved Elitist Genetic Algorithm Optimization based PTS to PAPR Reduction for Multi-Carrier Signals
2022 IEEE 6th Information Technology and Mechatronics Engineering Conference (ITOEC)
Year: 2022 | Conference Paper |
The high peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) modulation systems can significantly reduce the energy efficiency of high power amplifier (HPA). For PAPR reduction in OFDM systems, partial transmit sequence (PTS) scheme is a widely used technique to reduce the high PAPR problem inherent in 5G waveform design. Traditionally, the existing PTS...Show More
Low-Complexity PTS Scheme for PAPR Reduction in FBMC-OQAM Systems
IEEE Communications Letters
Cited by: Papers (30)
Most of the peak-to-average power ration (PAPR) reduction techniques, such as partial transmit sequence (PTS) algorithm and selective mapping algorithm, for conventional OFDM systems are not directly applied to filter bank multi-carrier with offset quadrature amplitude modulation (FBMC-OQAM) systems because of the overlapping structure of FBMC-OQAM signals. Furthermore, the complexity of the...Show More
Joint Decoding of LDPC Code and Phase Factors for OFDM Systems With PTS PAPR Reduction
In this paper, we investigate a low-density parity-check (LDPC)-coded orthogonal frequency-division multiplexing (OFDM) system with a peak-to-average power ratio (PAPR) reduction using the partial transmit sequence (PTS), which does not transmit PTS side information about the phase factors. We view the PTS processing as a stage of coding and call the resulted code of LDPC coding ...Show More
Efficient PTS scheme with adaptive selection method for dominant samples in OFDM systems
2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN)
Year: 2017 | Conference Paper |
In OFDM systems, high peak-to-average power ratio (PAPR) of OFDM signals is one of the most important problem. As a solution of the PAPR problem in OFDM systems, partial transmit sequence (PTS) scheme is quite a suitable scheme due to its PAPR reduction performance and distortion characteristic. However, high computational complexity is serious problem in the PTS scheme. In this paper,...Show More
Hybrid scheme for PAPR reduction technique in WiMAX OFDMA
The 17th Asia Pacific Conference on Communications
Year: 2011 | Conference Paper |
Fourth generation (4G) wireless technology are expected to be based on worldwide interoperability for microwave access (WiMAX) systems. However, high peak to average power ratio (PAPR), a main drawback in mobile WiMAX using orthogonal frequency division multiplexing (OFDM), are solved in some solutions for many years. Especially, such wireless systems with large number of sub-carriers lead to unde...Show More
PAPR reduction in Wavelet based SC-FDMA using PTS scheme for LTE uplink transmission
2014 International Conference on Advances in Computing, Communications and Informatics (ICACCI)
Year: 2014 | Conference Paper |
Cited by: Papers (1)
Single Carrier Frequency Division Multiple Access (SCFDMA) has become a promising technique for Long Term Evolution (LTE) uplink transmission. SCFDMA is often referred as Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiple Access (OFDMA). The reason for using SC-FDMA for uplink transmissions is its lower Peak to Average Power Ratio (PAPR) performance. Lower PAPR makes th...Show More
Performance improvement of OFDM using hybrid PAPR reduction technique
N. Annamalai Gokkul;A. Ashok Kumar;S. Hemant Kumar;M. Ramakrishnan
2013 Fourth International Conference on Computing, Communications and Networking Technologies (ICCCNT)
Year: 2013 | Conference Paper |
Cited by: Papers (2)
One of the major concerns of Orthogonal Frequency Division Multiplexing (OFDM) systems are its high Peak to Average Power Ratio (PAPR) values. These high PAPR values result in serious degradation in performance when a non-linear power amplifier is employed. The Conventional Partial Transmit Sequence (C-PTS) technique is one of the highly efficient methods for PAPR reduction in OFDM systems. ...Show More
A Class of Low Complexity PTS Techniques for PAPR Reduction in OFDM Systems
IEEE Signal Processing Letters
Cited by: Papers (55)
This letter presents a class of low complexity partial transmit sequence (LC-PTS) techniques for reducing the peak-to- average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. The basic principle is to analyze and utilize the correlation among the candidate signals generated in PTS, so as to simplify the computational complexity. Furthermore, the propose...Show More
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