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A Low Complexity Linear Moving Average Filtering Technique for PAR Reduction in OFDM Systems被引量：1: 《International Journal of Communications, Network and System Sciences》2018年第10期199-215,共17页Hassan Ali Raziq Yaqub; In this paper, a linear moving average recursive filtering technique is proposed to reduce the peak-to-average power ratio (PAR) of orthogonal frequency division multiplexing (OFDM) signals. The proposed low complexit...; 关键词：Moving Average FILTERING RECURSIVE FILTERING Orthogonal Frequency Division MULTIPLEXING Peak-to-Average-Power Ratio Inverse Fast FOURIER Transform

On the Performance Analysis of One Tap Equalizers in Oversampled OFDM Systems: 《International Journal of Communications, Network and System Sciences》2018年第9期187-198,共12页Hassan Ali Fahad Khan; Oversampling is commonly encountered in orthogonal frequency division multiplexing (OFDM) systems to ease various performance characteristics. In this paper, we investigate the performance and complexity of one tap ze...; 关键词：ONE TAP EQUALIZATION OVERSAMPLING Orthogonal Frequency Division Multiplexing Inverse Fast Fourier Transform

Enhancing the Odd Peaks Detection in OFDM Systems Using Wavelet Transforms: 《International Journal of Communications, Network and System Sciences》2016年第7期295-303,共9页Ahlam Damati Omar Daoud Qadri Hamarsheh; This work aims to study the effect of unwanted peaks and enhance the performance of wireless systems on the basis of tackling such peaks. A new proposition has been made based on wavelet transform method and its entro...; 关键词：Wavelet Transform ENTROPY MIMO OFDM PAPR

Opportunistic Error Correction: When Does It Work Best for OFDM Systems?: 《International Journal of Communications, Network and System Sciences》2013年第11期459-471,共13页Xiaoying Shao Cornelis H. Slump; The water-filling algorithm enables an energy-efficient OFDM-based transmitter by maximizing the capacity of a frequency selective fading channel. However, this optimal strategy requires the perfect channel state info...; 关键词：WATER-FILLING OPPORTUNISTIC Error Correction OFDM ADC Frequency Selective FADING

Adaptive Switching between Space-Time and Space-Frequency Block Coded OFDM Systems in Rayleigh Fading Channel: 《International Journal of Communications, Network and System Sciences》2013年第6期316-323,共8页My Abdelkader Youssefi Nawal Bounouader Zouhair Guennoun Jamal El Abbadi; This work explores the performances of Space-Time and Space Frequency Coded Orthogonal Frequency Division Multiplexing (OFDM) with simple two branches transmit diversity scheme. The combination of multiple-antenna and...; 关键词：OFDM MIMO RAYLEIGH FADING Channel STBC SFBC

Low Complexity Discrete Bit-loading for OFDM Systems with Application in Power Line Communications: 《International Journal of Communications, Network and System Sciences》2011年第6期372-376,共5页Khalifa S. Al-Mawali Amin Z. Sadik Zahir M. Hussain; Adaptive bit-loading algorithms can improve the performance of OFDM systems significantly. The tradeoff between the performance of the algorithm and its computational complexity is essential for the implementation of ...; 关键词：Bit-Loading OFDM Power LINE COMMUNICATIONS

Analysis and Comparison of Time Replica and Time Linear Interpolation for Pilot Aided Channel Estimation in OFDM Systems: 《International Journal of Communications, Network and System Sciences》2010年第5期446-452,共7页Donglin Wang; This paper analyzes and compares two time interpolators, i.e., time replica and time linear interpolator, for pilot aided channel estimation in orthogonal frequency division multiplexing (OFDM) systems. The mean squar...; 关键词：OFDM Channel Estimation TIME REPLICA TIME Linear INTERPOLATION Virtual Pilots

Performance Analysis of an Optimal Circular 16-QAM for Wavelet Based OFDM Systems: 《International Journal of Communications, Network and System Sciences》2009年第9期836-844,共9页Khaizuran ABDULLAH Seedahmed S. MAHMOUD Zahir M. HUSSAIN; The BER performance for an optimal circular 16-QAM constellation is theoretically derived and applied in wavelet based OFDM system in additive white Gaussian noise channel. Signal point constellations have been discus...; 关键词：Performance OFDM Fourier-Based OFDM Wavelet-Based OFDM CIRCULAR 16-QAM SQUARE 16-QAM

Subcarrier Availability in Downlink OFDM Systems with Imperfect Carrier Synchronization in Deep Fading Noisy Doppler Channels: 《International Journal of Communications, Network and System Sciences》2009年第8期775-785,共11页Litifa NOOR Alagan ANPALAGAN Sithamparanathan KANDEEPAN; Multicarrier systems such as orthogonal frequency division (OFDM) are considered as a promising candidate for wireless networks that support high data rate communication. In this article, we investigate the perform-an...; 关键词：OFDM SUBCARRIER AVAILABILITY Synchronization

Efficient Bandwidth and Power Allocation Algorithms for Multiuser MIMO-OFDM Systems: 《International Journal of Communications, Network and System Sciences》2009年第6期504-510,共7页Jin SHU Wei GUO; This paper studies the problem of finding an effective subcarrier and power allocation strategy for downlink communication to multiple users in a MIMO-OFDM system with zero-forcing beamforming. The problem of minimizi...; 关键词：MULTIUSER MIMO-OFDM Adaptive RESOURCE ALLOCATION QoS

OFDM_SYSTEMS