Search - papr reduction using ofdm systems

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[matlab] MimoOfdmPAPR DL : 0: To combat high PAPR, one intuitive solution is to adopt amplifiers to have larger trade-off range. However, these types of amplifiers are generally expensive and have low efficiency-cost, and therefore are of no practical use. On the other side, certain algorithms were introduced and been proved have a good performance of high PAPR reduction. Hence, in this thesis, some currently promising PAPR reduction methods are studied and compared. The performance of these reduction schemes are evaluated by using simulation software, Matlab. NUMERICAL PERFORMANCE EVALUATION OFPAPR REDUCTION TECHNIQUES IN MIMO OFDM WIRELESS COMMUNICATION SYSTEMS. Nice thesis paper with source code and simulation.
Date : 2025-07-01 Size : 886kb User : A.H.M Shahparan
[matlab] BER DL : 0: OFDM系统中降低PAPR算法后使用的误码检测平台-PAPR reduction algorithm for OFDM systems using error detection platform after
Date : 2025-07-01 Size : 2kb User : 宁磊
[Communication-Mobile] CFR DL : 1: 峰值抵消算法的基本思想是：在OFDM信号上叠加一个由一系列加权参考函数组成的峰值抵消信号，通过抵消函数的选取以及权值计算，使得抵消信号尽可能消除超过门限的信号幅值。常见的参考函数分为脉冲函数和其他窗函数两类。- T. May, H. Rohling. Reducing the peak-to-average power ratio in OFDM radio transmission systems. IEEE Vehicular Technology Conference (VTC), May 1998, Ottawa Canada, 3: 2474-2478 A. Geert Arnout, van N. Richard D., de W. Arnout Hendrik. Transmission system and method employing peak cancellation to reduce the peak-to-avrage power ratio. US Patent 6175551, Issued on January 16, 2001 S. K. Cha, M. H. Park, S. G. LEE, et al. A new PAPR reduction technique for OFDM systems using advanced peak windowing method. IEEE Trans. Consum. Electron., 2008, 54(2): 405-410 G. G. Chen, R. Ansari, Y. W. Yao. Improved peak windowing for PAPR reduction in OFDM. IEEE Vehicular Technology Conference, Apr. 2009, Barcelona, Spain H. Kuo, S.W. Cheung. Optimization of windowing and peak-windowing techniques for WCDMA systems. IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse France, 4: IV313-IV316 O. Vä ä nä nen, J. Vankka, K. Halonen. Simpl
Date : 2025-07-01 Size : 2.56mb User : daidaohan
[Communication-Mobile] PAPR DL : 0: A new PAPR reduction technique for OFDM systems using advanced peak windowing method.PDF
Date : 2025-07-01 Size : 1.13mb User : mary
[Program doc] 05441004 DL : 0: Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.
Date : 2025-07-01 Size : 698kb User : payal
[Communication-Mobile] FirstFollow DL : 0: Multiple input multiple output techniques combined with orthogonal frequency division multiplexing (MIMO-OFDM) provide a promising approach for wireless systems. However, a serious drawback of the OFDM system is the high peak-toaverage power ratio (PAPR), which may severely affect the power efficiency of RF power amplifiers. In this paper, we propose a simple method to reduce the PAPR of MIMO-OFDM signals based on the use of unused subcarriers. Instead of processing the signals at each transmitter separately, a peak cancelling signal is generated at one antenna and is then applied to all the others with only simple modifications. Simulation has shown that a minimum 2 dB reduction in PAPR can be achieved for all transmit signals using this approach. As the signal processing is nearly all done at a single transmitter, repetition of the operations at each transmitter is avoided, and therefore the overall cost of the system can be significantly reduced.
Date : 2025-07-01 Size : 5kb User : payal
[Program doc] paper2 DL : 0: A New Low-Complexity Selected Mapping Scheme Using Cyclic Shifted IFFT for PAPR Reduction in OFDM Systems
Date : 2025-07-01 Size : 622kb User : li
[DSP program] PAPR-reduction-using-neural-networks DL : 0: PAPR Reduction Scheme for OFDM Systems via Neural Networks
Date : 2025-07-01 Size : 2kb User : Abin Abraham
[Industry research] 1mimo_channel_capacity_simulation DL : 0: these peak-reducing signals are built by using spreading codes that are either dynamically selected those users that are known to be idle, or deliberately reserved a priorifor PAPR reduction purposes. The concept of adding orthogonal signals for peak power mitigation has been previously proposed to reduce PAPR in Discrete MultiTone and OFDM transmissions[13,27], and also in CDMA downlink systems [28]. -these peak-reducing signals are built by using spreading codes that are either dynamically selected those users that are known to be idle, or deliberately reserved a priorifor PAPR reduction purposes. The concept of adding orthogonal signals for peak power mitigation has been previously proposed to reduce PAPR in Discrete MultiTone and OFDM transmissions[13,27], and also in CDMA downlink systems [28].
Date : 2025-07-01 Size : 11kb User : emman
[AI-NN-PR] OFDM DL : 0: Matlab code which implements MB-OFDM transmission block as per ECMA 368 standard. OFDM over frequency selective wireless channels simulation code for Peak-to-Average Power Ratio (PAPR) reduction in MIMO OFDM/A system using CMA This is an OFDM simulation that gives you the PAPR, BER, and the PSD before and after the SSPA. the program distribute an amount power among ofdm subchannel to make the capacity of a channel as ma Representation of OFDM signal with PAPR reduction using Clipping and SLM Techniques. The complete project of OFDMA system. It tries to maximize the network capacity. Link and system level simulator for OFDM based wireless broadband systems Ultrawideband (UWB) multiband OFDM physical layer with fixed-point transmitter/receiver modeling.
Date : 2025-07-01 Size : 838kb User : Sina