Iterative Signal Processing for SDM-OFDM
Reducing PAPR of the OFDM Signal Using Iterative Exponential Companding Transform
... In OFDM system we convert high data rate steams to low data rate streams which convert’s bandwidth of W to W/n which is lower than channel bandwidth so that represents OFDM signal having efficient ...
7
PAPR Reduction Approach by Iterative Companding and Filtering Signal in OFDM System
... for OFDM systems and the proposed algorithm can also be applied in Wi-MAX base stations with a larger number of OFDM ...un-coded OFDM system based on Digital Video Broadcasting-second generation ...
5
An Iterative Approach to Nonconvex QCQP with Applications in Signal Processing
... the signal processing and communications community such as beamforming design [2]–[4], radar optimal code design [5]– [8], multiple-input multiple-output (MIMO) and multiuser estimation and detection [9], ...
5
Analysis of the OFDM Signal and Optical OFDM signal
... optical OFDM signal could yield the promising results to overcome the multipath effects and Inter symbol Interference for such type of channels ...low signal processing complexity, potentially ...
7
On Efficient Signal Processing Algorithms for Signal Detection and PAPR Reduction in OFDM Systems
... Orthogonal frequency division multiplexing has been used as a standard solution for high data rate wireless communication. The need of simple equalization and high spectral efficiency has made this technique a promising ...
170
Filter Optimization MIMO Signal Processing Techniques based on SDM Transmissions for 5G Technologies
... Both OFDM and FBMC strategies depend on the basic working principles of IFFT/FFT computational ...in OFDM prompts an overhead that adversely impacts on the transmission bandwidth ...
7
Signal processing for future MIMO-OFDM wireless communication systems
... two-step processing when the system is tested with various fading rate channel ...two OFDM symbol periods in order to employ space-time block ...and OFDM fails to keep their orthogonality between the ...
238
Advanced digital signal processing for coherent optical OFDM transmissions
... with QPSK modulation format was generated offline in MATLAB using an IFFT size of 512, where 210 subcarriers were filled with data and the remainder zeros giving a line rate of 20 Gb/s (18.2 Gb/s after cyclic prefix and ...
212
MST radar signal processing using iterative adaptive approach
... Power spectrum is the considerable aspect in the atmospheric radar data processing to estimate wind parameters. Due to the poor resolution and high sidelobe level problems of the existing algorithms, there is a ...
10
SYSTEM DESIGN AND SIGNAL PROCESSING FOR OFDM-BASED WIRELESS COMMUNICATION SYSTEMS
... the OFDM-based BLAST systems, we have proposed an OFDM DATA field design which includes the pairing of the pilot tones used for error ...an iterative soft-detector which uses constrained value of the ...
199
Iterative (turbo processing) receiver design of OFDM systems in the presence of carrier frequency offset.
... Figure 1. Iterative receiver with channel estimation and CFO’s time-domain compensation. On the first iteration, we use block-type pilot symbols to estimate the channel at pilot symbol po- sitions. The channel is ...
13
Direct Path Interference Suppression and Received Signal Processing for OFDM Passive Radar
... Passive bistatic radar (PBR) is a fairly active area of research due to the opportunities offered by the ability to use emitters of opportunity for target detection and tracking as well as Synthetic Aperture Radar (SAR) ...
105
Iterative Receiver Architectures for MIMO OFDM
... turbo processing, our turbo MIMO-OFDM receiver comprises a succession of detection modules, namely the channel estimator, the space-time detector and the decoder, which itera- tively exchange soft ...
5
Performance Improvement of OFDM System Using Iterative Signal Clipping With Various Window Techniques for PAPR Reduction
... Abstract— OFDM signals demonstrates high fluctuations termed as Peak to Average Power Ratio ...of OFDM is the frequent occurrence of high Peaks in the time domain signal which in turn reduces the ...
5
Non-iterative joint decoding and signal processing: universal coding approach for channels with memory
... to Iterative Receivers Compared to using turbo equalization, the proposed receiver has the following ad- vantages - the complexity is significantly smaller since only one iteration of BCJR equalizer is ...for ...
130
Low Complex Papr Reduction by Alternative Signal Method and Iterative Companding and Filtering Method in OFDM/OQAM Model
... them. OFDM has been used for Digital Audio Broadcasting (DAB) and Digital Video Broadcasting (DVB) in Europe and for Asymmetric Digital Subscriber Line (ADSL) high data rate wired ...links. OFDM has also ...
6
Iterative Detection for Overloaded Multiuser MIMO OFDM Systems
... an iterative multiuser detection scheme is proposed for overloaded multiuser MIMO OFDM ...the iterative principle, joint detection and decoding with simple matched filter and convolutional code is ...
185
Iterative receiver for hybrid asymmetrically clipped optical OFDM
... electrical signal is modulated onto the instantaneous power of the optical emitter ...transmitted signal has to be real- valued and ...the OFDM subcarriers. By adding a DC bias, the signal is ...
7
Effect of Cyclic Prefix on OFDM Signal
... networks. OFDM can provide large data rates with sufficient robustness to radio channel ...impairments. OFDM is designed such a way that it sends data over hundreds of parallel streams which increases the ...
6
An Iterative Maximum Likelihood Synchronization Method for OFDM System
... ABSTRACT OFDM system divides a wideband transmission bandwidth into several overlapped narrowband subcarriers to avoid the serious frequency selective fading ...(Rx), OFDM system will suffer the ...
5