[PDF] Top 20 1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
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1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
... orthogonal frequency division multiplexing (OFDM) systems, a frequency selective (FS) channel is commuted into an accumulation of flat fading channels, which can be ... See full document
7
A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems
... Channel estimation for transmit diversity OFDM sys- tems has attracted much attention with pioneering works by Li et ...A robust channel estimator for OFDM systems with ... See full document
14
ENHANCEMENT CHANNEL ESTIMATION TECHNIQUES FOR OFDM SYSTEMS WITH REALISTIC INDOOR FADING CHANNELS.
... in frequency so that their transmitted signals do not overlap in the frequency ...a frequency tunable band pass filter to selectively remove all the signals except for the station of ... See full document
11
Channel length assisted symbol synchronization for OFDM systems in multipath fading channels
... multipath channels, utilizing a correlation length that equals the summation of the channel and CP ...multipath channels, an approach in that work [13] may require many symbols to obtain an accurate ... See full document
11
Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm
... symbol, OFDM signal and RF transmit ...signaling scheme for up conversion to Radio Frequency (RF) ...16 channel by ...to OFDM symbol time to have larger interval than the expected delay ... See full document
6
INPULSE noise estimation in frequency selective fading channel
... in OFDM-based communications schemes (like DSL and ...in OFDM systems and a priori information of the impulse noise distribution, resulting in a fast and efficient ... See full document
6
Bit Error Rate Analysis for an OFDM System with Channel Estimation in a Nonlinear and Frequency Selective Fading Channel
... severely frequency- selective ...an OFDM system’s transmission performance was investigated with a computer ...an OFDM system with CE in a nonlinear and frequency- selective ... See full document
12
On Channel Estimation for Analog Network Coding in a Frequency Selective Fading Channel
... or frequency to avoid interference, in ANC the users’ signals interfere in the same time ...the channel cross-correlation ...Gaussian channel is ...the channel frequency selectivity is ... See full document
12
Improving Performance and Detection Schemes of Mimo-Ofdm Systems in the Presence of Phase Noise and Doubly-Selective Fading Where Channel is Both Time and Frequency Selective Offia Innocent.S, Udeh Ikemefuna James, Eke J
... (4 1), except that phase noise terms and OFDM symbol index are ...MIMO- OFDM systems with various MSE values are shown in ...suppression scheme and the MMSE detection scheme are ... See full document
7
Constant Envelope DCT- and FFT- based Multicarrier Systems
... an OFDM system with 2-D modulations (complex-valued formats) ...multipath fading channels is considered in several recent ...decaying channel profiles, with intersymbol interference (ISI), it ... See full document
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An Adaptive Channel Estimation Algorithm Using Time Frequency Polynomial Model for OFDM with Fading Multipath Channels
... the fading multi- path channel, it can be viewed as a smoothly varying function of both time and ...the frequency domain polynomial approximation. However, the channel responses used in ... See full document
13
Exact BER Analysis of OFDM Systems Communicating over Frequency Selective Fading Channels Subjected to Carrier Frequency Offset
... Orthogonal Frequency Division Multiplexing (OFDM) has been employed in numerous wireless ...of OFDM systems is degraded by both the Carrier Frequency Offset (CFO) and the Phase ... See full document
5
An improved method of mimo ofdm channel estimation using chaotic pilot sequence
... communication systems. MIMO-OFDM (multiple input multiple output- orthogonal frequency division multiplexing) technology, has gained great popularity for its capability of high rate transmission and ... See full document
6
Joint Effects of Synchronization Errors of OFDM Systems in Doubly-Selective Fading Channels
... doubly-selective fading channels, we analyze joint e ff ects of the mentioned three major synchronization errors, without the assumption of small ...and frequency-selective fading ... See full document
9
Blind CP OFDM and ZP OFDM Parameter Estimation in Frequency Selective Channels
... of OFDM signals converge to 0 as the number of subcarriers increases indepen- dently of the Signal-to-Noise Ratio (SNR) and hence can be used to distinguish between single-carrier modulations and multicarrier ... See full document
10
Achievable data rates and power allocation for frequency selective fading relay channels with imperfect channel estimation
... of fading in wireless channels ...wireless channel, cooperative transmis- sion builds upon the idea of a number of nodes helping each other through ... See full document
10
Implementation of Transmit Diversity Schemes
... Therefore channel estimation plays a vital role in the receiver designs of ...Space Frequency Block Codes (SFBC) are used to obtain diversity ...the frequency domain. In SFBC multiple flat ... See full document
7
Joint CFO Estimation and Data Detection in OFDM systems
... joint estimation that was based on a linear search method was ...CFO estimation and data detection was ...for OFDM systems over frequency selective fast fad- ing ...the ... See full document
89
Effect of cyclic prefix in BER improvement in MIMO-OFDM system
... wireless channel and the receiver ...communication systems using single carrier modulation suffer from severe inter-symbol interference (ISI) caused by dispersive channel impulse response, thereby ... See full document
6
On Channel Estimation of OFDM BPSK and QPSK over Generalized Alpha Mu Fading Distribution
... There exists a large number of distribution schemes to describe the statistics of mobile radio signal. A key as- sumption in the theoretical explanation of the Rayleigh, Rician, Nakagami and Weibull distribution was that ... See full document
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