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Bircan Kamislioglu, Ayhan Akbal
2017 European Journal of Technic  
Applications are realized for theoretical, Gaussian approach, simulations and variations are shown with figures.  ...  Double selective channels are described time selectivity and frequency selectivity which explore their performance variance in this paper.  ...  However, the comparisons realized only on simulations, there are no analytical solutions. So a closed form structure of BEP with channel estimation is improved for linear interpolation methods.  ... 
doi:10.23884/ejt.2017.7.2.03 fatcat:rqmgaifyyjdjrkwuxeplfrs7ty

Method for Phase Noise Impact Compensation in 60 GHz OFDM Receivers

A. Lomayev, V. Kravtsov, M. Genossar, A. Maltsev, A. Khoryaev
2020 Radioengineering  
The proposed compensation method combines time domain algorithm predicting the linear average phase trend on the OFDM symbol duration and estimation in frequency domain of phase noise spectrum realization  ...  This paper presents a method for phase noise impact compensation in 60 GHz OFDM receivers and provides the results of performance evaluation using OFDM PHY parameters defined in the IEEE 802.11ay standard  ...  the PN frequency domain realization J is only valid for a frequency flat channel.  ... 
doi:10.13164/re.2020.0159 fatcat:jtlloq73sbeqbhlsxx7mqglqci

Performance of OFDM QAM over Frequency-Selective Fading Channels

Rainfield Y. Yen, Hong-Yu Liu, Kuo-Feng Yang, Ming-Chih Hong, Shang-Chieh Nan
2007 2007 IFIP International Conference on Wireless and Optical Communications Networks  
Both slow and fast quasi-static fading as well as frequency-selective and -nonselective channels are considered.  ...  We present exact symbol error rate (SER) performance analysis for M-QAM OFDM systems over Ricean and Rayleigh fading is analyzed.  ...  are viewing Xk as being in the frequency domain and xn in the time domain.  ... 
doi:10.1109/wocn.2007.4284217 fatcat:haf26grkmfhctebxybkz26qu2u

A Frequency-Domain Correlation Matrix Estimation Algorithm for MIMO-OFDM Channel Estimation

Feng Wan, Wei-Ping Zhu, M. N. S. Swamy
2008 2008 IEEE 68th Vehicular Technology Conference  
The proposed frequency-domain correlation matrix estimation method is then used to develop a new semi-blind MIMO-OFDM channel estimation approach.  ...  Considering that the received signal in MIMO-OFDM systems might be corrupted in the time-domain due to some adverse factors such as frequency offset and large peak-to-average power ratio (PAPR), an IFFT  ...  Here, the frequency domain correlation estimation algorithm developed in Section III can be used for obtainingR T .  ... 
doi:10.1109/vetecf.2008.72 dblp:conf/vtc/WanZS08 fatcat:qeqzsfxcvrhfbi3fsb7hvf3nxe

A frequency domain subspace blind channel estimation method for trailing zero OFDM systems

Song Wang, Jinli Cao, Jiankun Hu
2011 Journal of Network and Computer Applications  
In this paper, we propose a blind channel estimation method for TZ-OFDM systems in the frequency domain. The significance of the proposed method is threefold.  ...  The technique of orthogonal frequency division multiplexing (OFDM) is widely used for high-speed data transmission in indoor and outdoor communication networks.  ...  In this paper, we propose a frequency domain subspace approach to blind channel estimation for TZ-OFDM systems.  ... 
doi:10.1016/j.jnca.2010.08.009 fatcat:nrejezj7b5cadesizvdktkwyj4

Time domain synchronous OFDM based on simultaneous multi-channel reconstruction

Linglong Dai, Jintao Wang, Zhaocheng Wang, Paschalis Tsiaflakis, Marc Moonen
2013 2013 IEEE International Conference on Communications (ICC)  
In this way, the mutually conditional time-domain channel estimation and frequency-domain data demodulation in TDS-OFDM can be decoupled without the use of IBI removal.  ...  Time domain synchronous OFDM (TDS-OFDM) can achieve a higher spectrum efficiency than standard cyclic prefix OFDM (CP-OFDM).  ...  Unlike the pilot-based frequency-domain channel estimation in CP-OFDM and ZP-OFDM [5] , TDS-OFDM realizes timedomain channel estimation based on the received PN sequence d i = [d i,0 , d i,1 , · · · ,  ... 
doi:10.1109/icc.2013.6654997 dblp:conf/icc/DaiWWTM13 fatcat:arsmnocpqbfnhmbxy4cbs4rvsu

Adaptive Prediction of Channels with Sparse Features in OFDM Systems

Changwei Lv, Shujuan Hou, Wenbo Mei
2013 International Journal of Antennas and Propagation  
A time domain channel prediction method exploiting features of sparse channel is proposed for orthogonal frequency division multiplexing (OFDM) systems.  ...  We also compare the proposed prediction method with the classical frequency domain method realized at each OFDM subcarrier and demonstrate that our method increases the prediction accuracy and reduces  ...  Existing channel predictors for OFDM are often realized in the frequency domain. For the th ( = 0, 1, . . . , − 1) subcarrier, the frequency domain method is given bỹ  ... 
doi:10.1155/2013/649602 fatcat:l5ccm5zimrhfhorkzfyxfiprni

Error Rate Analysis for Coded Multicarrier Systems over Quasi-Static Fading Channels [article]

C. Snow, L. Lampe, R. Schober
2006 arXiv   pre-print
The second method is based on knowledge of the correlation matrix of the frequency-domain channel gains and can be used to directly obtain the average performance.  ...  The first method is based on approximating the performance of the system over each realization of the channel, and is suitable for obtaining the outage performance of this type of system.  ...  Averaging Approach ("Method II") In this section, we propose a method, based on knowledge of the frequency-domain channel correlation matrix, which can be used directly in order to obtain the average BER  ... 
arXiv:cs/0603131v1 fatcat:toyrddvxpbai7n4orrhic7nxn4

Error Rate Analysis for Coded Multicarrier Systems over Quasi-Static Fading Channels [article]

Chris Snow, Lutz Lampe, Robert Schober
2006 arXiv   pre-print
The second method assumes Rayleigh distributed frequency-domain subcarrier channel gains and knowledge of their correlation matrix, and can be used to directly obtain the average BER performance.  ...  In the first method, the approximate performance of the system is calculated for each realization of the channel, which is suitable for obtaining the outage BER performance (a common performance measure  ...  in the frequency domain.  ... 
arXiv:cs/0606090v1 fatcat:zvx7xmoroncg7nels53ky25wuq

An efficient iterative DFT-based channel estimation for MIMO-OFDM systems on multipath channels

Jian Haifang, Shi Yin
2008 2008 Third International Conference on Communications and Networking in China  
in this paper, an efficient iterative discrete Fourier transform (DFT) -based channel estimator with good performance for multiple-input and multiple-output orthogonal frequency division multiplexing (  ...  In order to eliminate the mean-square error (MSE) floor effect existed in conventional DFT-based channel estimators, we proposed a low-complexity method to detect the significant channel impulse response  ...  In contrast to the frequency domain estimation, the transform domain estimation method uses the time domain properties of channels.  ... 
doi:10.1109/chinacom.2008.4684966 fatcat:zshykwrnznhy3lmbqrgbhnig4i

Frequency Domain Multipath Fading Channel Simulator Integrated With Ofdm Transmitter For E-Utran Baseband Traffic Generator

Grzegorz Cisek, Tomasz Zielinski
2018 Zenodo  
Publication in the conference proceedings of EUSIPCO, Kos island, Greece, 2017  ...  Some of the previous studies have already focused on realization of fading channel simulator in frequency domain.  ...  A non-unitary DFT based approach was used in [11] to implement frequency-domain channel simulator in GPU.  ... 
doi:10.5281/zenodo.1159892 fatcat:4ihjommwd5aehbfjnpucolcz54


Seung-Hyun Nam, Jae-Seon Yoon, Hyoung-Kyu Song
2008 Progress In Electromagnetics Research Letters  
Also, the proposed method enhances reliability by maximizing the number of correlations compared with the established method in time domain.  ...  In this paper, a carrier frequency offset estimation scheme in orthogonal frequency division multiplexing is proposed.  ...  FREQUENCY OFFSET ESTIMATION A preamble is used for frequency offset estimation. The preamble using Schmidl estimation method is expressed as a reiterated form in time domain.  ... 
doi:10.2528/pierl08051204 fatcat:6cfpvhljmrdl7agzqotzx6q4qy

A Design and Performance of 4-Parallel MB-OFDM UWB Receiver

2007 IEICE transactions on communications  
as well as in an AWGN channel, as identified in simulation results.  ...  the maximum frequency/sampling clock offset tolerance in an AWGN channel.  ...  The PER performance in multi-path channel environments (CM1-CM3) was also simulated and the simulation results for this are illustrated in Figs. 5(b) , (c).  ... 
doi:10.1093/ietcom/e90-b.3.672 fatcat:nljxxl4kdne57d2dqhpmahbzxq

Frame synchronization, channel estimation scheme and signal compensation using regression method in OFDM systems

Jyh-Horng Wen, Gwo-Ruey Lee, Jia-Wei Liu, Te-Lung Kung
2008 Computer Communications  
In this paper, a joint frame synchronization and channel estimation scheme using the regression method is proposed.  ...  With the estimated channel information, a frequency domain one-tap equalizer is presented to achieve the signal compensation.  ...  Based on the correlation of the PN code, the scheme applying the regression method is simple to realize the frame synchronization.  ... 
doi:10.1016/j.comcom.2008.01.057 fatcat:gqxecpthcrdcrjnvpdme6vjh3i

Secret key generation through OFDM multipath channel

Yanpei Liu, Stark C. Draper, Akbar M. Sayeed
2011 2011 45th Annual Conference on Information Sciences and Systems  
The development in this paper is based on an IEEE 802.11a orthogonal frequency-division multiplexing (OFDM) model and We demonstrate that it is feasible to use the sampled channel coefficients in OFDM  ...  We show that key extraction based on channel coefficients significantly outperforms key extraction based on received signal strength indicators (RSSI).  ...  OFDM Simulation Results We first show the simulation result of an IEEE 802.11a channel. We simulate the frequency and sampled channel coefficients and their correlation matrices.  ... 
doi:10.1109/ciss.2011.5766103 dblp:conf/ciss/LiuDS11 fatcat:gvbbvrkru5f6nfk3mjw7mr2o6u
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