Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931422
M. Oularbi, S. Gazor, S. Houcke, Abdeldjalii Aissa-El-Bey
This paper deals with the challenge of OFDM system identification. In a recent paper [1], we developed a Generalized Likelihood Ratio Test approach that exploits only the pilot positions to detect the presence of a given system. In this paper, we propose to exploit the redundancy often induced between the pilot symbols as a side information to improve the detector performance. Computer simulations show that the proposed algorithm outperforms the first proposed method and the existing techniques in the literature. More than system detection, the proposed algorithm performs channel estimation as well as estimation of the noise variance and is computationally inexpensive.
{"title":"OFDM system identification using pilot tone signature","authors":"M. Oularbi, S. Gazor, S. Houcke, Abdeldjalii Aissa-El-Bey","doi":"10.1109/WOSSPA.2011.5931422","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931422","url":null,"abstract":"This paper deals with the challenge of OFDM system identification. In a recent paper [1], we developed a Generalized Likelihood Ratio Test approach that exploits only the pilot positions to detect the presence of a given system. In this paper, we propose to exploit the redundancy often induced between the pilot symbols as a side information to improve the detector performance. Computer simulations show that the proposed algorithm outperforms the first proposed method and the existing techniques in the literature. More than system detection, the proposed algorithm performs channel estimation as well as estimation of the noise variance and is computationally inexpensive.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129669460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931410
M. Bencheikh, Yide Wang
In this paper, we investigate the exploitation of the Non-circularity of radar signal property in a bistatic MIMO radar to improve the performance of joint estimation of direction of arrival (DOA) and direction of departure (DOD) of targets using Combined ESPRIT-RootMUSIC techniques. Simulation results are carried out to illustrate the performance of the proposed approach.
{"title":"Non circular ESPRIT-RootMUSIC joint DOA-DOD estimation in bistatic MIMO radar","authors":"M. Bencheikh, Yide Wang","doi":"10.1109/WOSSPA.2011.5931410","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931410","url":null,"abstract":"In this paper, we investigate the exploitation of the Non-circularity of radar signal property in a bistatic MIMO radar to improve the performance of joint estimation of direction of arrival (DOA) and direction of departure (DOD) of targets using Combined ESPRIT-RootMUSIC techniques. Simulation results are carried out to illustrate the performance of the proposed approach.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128995179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931458
R. Tiwari, H. Strangeways, S. Tiwari, S. Boussakta, S. Skone
Phase scintillation, e.g. as observed from GPS satellites by ground receivers, is generally measured as the standard deviation of the random fluctuations of the phase received over a fixed period of time which is ofteny taken to be 60s. The measured phase scintillation can be an important tool in understanding the ionospheric turbulence producing it, and consequently its effect on GPS positioning. Therefore, it is important to develop reliable ways of quantifying it. A new approach employing a wavelet analysis is implemented in this work to investigate GPS carrier phase fluctuations for different scintillation conditions using GPS data received at high latitudes where the scintillation effect is particularly marked. The phase scintillation obtained using wavelet analysis is also compared with that derived from the standard PSD technique using FFTs. It is concluded that this wavelet approach appears to be a promising method for recording fast variations of phase due to diffraction by ionospheric irregularities. Furthermore, the wavelet analysis, because it can better characterize conditions of non-stationary, can lead to a better understanding of these effects on phase lock loss in GPS receiver PLLs and hence can aid the design of GPS receivers that are more robust to scintillation effects.
{"title":"GPS L1 phase scintillation using wavelet analysis at high latitude","authors":"R. Tiwari, H. Strangeways, S. Tiwari, S. Boussakta, S. Skone","doi":"10.1109/WOSSPA.2011.5931458","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931458","url":null,"abstract":"Phase scintillation, e.g. as observed from GPS satellites by ground receivers, is generally measured as the standard deviation of the random fluctuations of the phase received over a fixed period of time which is ofteny taken to be 60s. The measured phase scintillation can be an important tool in understanding the ionospheric turbulence producing it, and consequently its effect on GPS positioning. Therefore, it is important to develop reliable ways of quantifying it. A new approach employing a wavelet analysis is implemented in this work to investigate GPS carrier phase fluctuations for different scintillation conditions using GPS data received at high latitudes where the scintillation effect is particularly marked. The phase scintillation obtained using wavelet analysis is also compared with that derived from the standard PSD technique using FFTs. It is concluded that this wavelet approach appears to be a promising method for recording fast variations of phase due to diffraction by ionospheric irregularities. Furthermore, the wavelet analysis, because it can better characterize conditions of non-stationary, can lead to a better understanding of these effects on phase lock loss in GPS receiver PLLs and hence can aid the design of GPS receivers that are more robust to scintillation effects.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127160525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931450
S. Boukhenous, M. Attari
The aim of this work is to show, to which the swings of arms are applied, is effective to perform vertical jumping movements by using a dynamometric platform. The force plate's analog to digital convector and range amplifier was electronically zeroed and calibrated prior to each subject's. In this paper two vertical jumping can be performed with and without an arm swing. The reported data and signals were obtained from an athlete who is familiar with performing a correct jump. The best jumping recording by the force platform are presented. Consequently, it is concluded that the swings of arms contribute to high-performance jumping movements.
{"title":"A vertical jumping performance with and without arms swing by using a dynamometric platform","authors":"S. Boukhenous, M. Attari","doi":"10.1109/WOSSPA.2011.5931450","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931450","url":null,"abstract":"The aim of this work is to show, to which the swings of arms are applied, is effective to perform vertical jumping movements by using a dynamometric platform. The force plate's analog to digital convector and range amplifier was electronically zeroed and calibrated prior to each subject's. In this paper two vertical jumping can be performed with and without an arm swing. The reported data and signals were obtained from an athlete who is familiar with performing a correct jump. The best jumping recording by the force platform are presented. Consequently, it is concluded that the swings of arms contribute to high-performance jumping movements.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133104654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931425
Y. Chakhchoukh, A. Zoubir
Analyzing the stochastic characteristics of electric consumption series in many countries shows the presence of atypical observations or outliers. Outliers are deviant data points that do not follow the model of the majority of observations. They significantly degrade the accuracy of conventional day-ahead estimation and forecasting methods even if they are present in a very low fraction. Thus, both their identification and separate treatment are important in practice. In this paper, we evaluate by a comparison analysis the performance of some robust estimation methods. Namely, the robust filtered S- and filtered τ-estimators, the minimum covariance determinant (MCD), and the 3-σ rejection rule. The performance of these methods has been evaluated on the French electric demand in terms of forecasting accuracy. The sophisticated robust methods exhibit the best reliability if compared to non-robust or basic robust methods. Practical load forecasting confirms the necessary good theoretical tradeoff between robustness and efficiency under the nominal model.
{"title":"Robust short-term load forecasting","authors":"Y. Chakhchoukh, A. Zoubir","doi":"10.1109/WOSSPA.2011.5931425","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931425","url":null,"abstract":"Analyzing the stochastic characteristics of electric consumption series in many countries shows the presence of atypical observations or outliers. Outliers are deviant data points that do not follow the model of the majority of observations. They significantly degrade the accuracy of conventional day-ahead estimation and forecasting methods even if they are present in a very low fraction. Thus, both their identification and separate treatment are important in practice. In this paper, we evaluate by a comparison analysis the performance of some robust estimation methods. Namely, the robust filtered S- and filtered τ-estimators, the minimum covariance determinant (MCD), and the 3-σ rejection rule. The performance of these methods has been evaluated on the French electric demand in terms of forecasting accuracy. The sophisticated robust methods exhibit the best reliability if compared to non-robust or basic robust methods. Practical load forecasting confirms the necessary good theoretical tradeoff between robustness and efficiency under the nominal model.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122350126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931414
Youcef Tabet, M. Boughazi
The goal of this paper is to provide a short but a comprehensive overview of Text-To-Speech synthesis by highlighting its digital signal processing component. First two rule-based synthesis techniques (formant synthesis and articulatory synthesis) are explained then the concatenative synthesis is explored. Concatenative synthesis is simpler than rule-based synthesis, since there is no need to determine speech production rules. However, it introduces the challenges of prosodic modification to speech units and resolving discontinuities at unit boundaries. Prosodic modification results in artifacts in the speech that make the speech sound unnatural. Unit selection synthesis, which is a kind of concatenative synthesis, solves this problem by storing numerous instances for each unit with varying prosodies. The unit that best matches the target prosody is selected and concatenated. To resolve mismatches speech synthesis system combines the unit-selection method with Harmonic plus Noise Model (HNM). This model represents speech signal as a sum of a harmonic and noise part. The decomposition of speech signal into these two parts enables more natural sounding modifications of the signal. Finally Hidden Markov model(HMM) synthesis combined with an HNM model is introduced in order to obtain a Text-To-Speech system that requires smaller development time and cost.
{"title":"Speech synthesis techniques. A survey","authors":"Youcef Tabet, M. Boughazi","doi":"10.1109/WOSSPA.2011.5931414","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931414","url":null,"abstract":"The goal of this paper is to provide a short but a comprehensive overview of Text-To-Speech synthesis by highlighting its digital signal processing component. First two rule-based synthesis techniques (formant synthesis and articulatory synthesis) are explained then the concatenative synthesis is explored. Concatenative synthesis is simpler than rule-based synthesis, since there is no need to determine speech production rules. However, it introduces the challenges of prosodic modification to speech units and resolving discontinuities at unit boundaries. Prosodic modification results in artifacts in the speech that make the speech sound unnatural. Unit selection synthesis, which is a kind of concatenative synthesis, solves this problem by storing numerous instances for each unit with varying prosodies. The unit that best matches the target prosody is selected and concatenated. To resolve mismatches speech synthesis system combines the unit-selection method with Harmonic plus Noise Model (HNM). This model represents speech signal as a sum of a harmonic and noise part. The decomposition of speech signal into these two parts enables more natural sounding modifications of the signal. Finally Hidden Markov model(HMM) synthesis combined with an HNM model is introduced in order to obtain a Text-To-Speech system that requires smaller development time and cost.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127159252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931508
A. Aíssa-El-Bey, K. Abed-Meraim, C. Laot
In this paper, we focus on the adaptive identification of sparse SIMO channels in a blind context. More specifically, we propose different adaptive implementations of the sparse cross relation (SCR) method then we compare and analyse their performances in terms of convergence rate, estimation accuracy and robustness. The SCR method proceeds as follows: at first a blind approach based on the cross-relation criterion is derived for channel estimation. Secondly, to take into account the channel sparsity, the criterion is penalized by adding an extra ℓp norm term in order to enforce the sparsity of the desired solution. The corresponding algorithm (i.e. SCR) is shown to outperform the original CR method in terms of estimation accuracy and robustness to channel order over-estimation errors. The adaptive versions of the SCR proposed in this paper are shown to preserve the main advantages of the batch technique but suffer from low convergence rate for large dimensional systems.
{"title":"Adaptive blind estimation of sparse SIMO channels","authors":"A. Aíssa-El-Bey, K. Abed-Meraim, C. Laot","doi":"10.1109/WOSSPA.2011.5931508","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931508","url":null,"abstract":"In this paper, we focus on the adaptive identification of sparse SIMO channels in a blind context. More specifically, we propose different adaptive implementations of the sparse cross relation (SCR) method then we compare and analyse their performances in terms of convergence rate, estimation accuracy and robustness. The SCR method proceeds as follows: at first a blind approach based on the cross-relation criterion is derived for channel estimation. Secondly, to take into account the channel sparsity, the criterion is penalized by adding an extra ℓp norm term in order to enforce the sparsity of the desired solution. The corresponding algorithm (i.e. SCR) is shown to outperform the original CR method in terms of estimation accuracy and robustness to channel order over-estimation errors. The adaptive versions of the SCR proposed in this paper are shown to preserve the main advantages of the batch technique but suffer from low convergence rate for large dimensional systems.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123132488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931511
P. Nguyen, Azeddine Beghdadi, M. Luong
In this paper, we present a generic watermarking framework that employs perceptual modeling to embed a watermark in such a way that it cannot be perceived. Our approach consists in building computational models which take into account the most common properties of the HVS (Human Visual System) that can be exploited for watermarking. We describe two ways a perceptual model can be incorporated into a watermarking system to control the imperceptibility of the watermark: the implicit and the explicit embedding scheme. Both of schemes are designed in the pyramid transform domain proposed by Burt and Adelson. In the implicit embedding, the watermark is only inserted into imperceptible regions defined using a visibility map. In the explicit embedding, the watermark is embedded in all Laplacian coefficients with strength determined by a JND (Just-Noticeable-Distortion) threshold. The obtained results are twofold. Firstly, the explicit embedding performs better than the implicit one. Secondly, watermarking schemes based on HVS modeling have advantages over schemes that do not take perceptual aspect into consideration. These advantages are demonstrated in terms of imperceptibility and robustness via various experiments.
{"title":"A robust-transparent watermarking scheme based on perceptual modeling","authors":"P. Nguyen, Azeddine Beghdadi, M. Luong","doi":"10.1109/WOSSPA.2011.5931511","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931511","url":null,"abstract":"In this paper, we present a generic watermarking framework that employs perceptual modeling to embed a watermark in such a way that it cannot be perceived. Our approach consists in building computational models which take into account the most common properties of the HVS (Human Visual System) that can be exploited for watermarking. We describe two ways a perceptual model can be incorporated into a watermarking system to control the imperceptibility of the watermark: the implicit and the explicit embedding scheme. Both of schemes are designed in the pyramid transform domain proposed by Burt and Adelson. In the implicit embedding, the watermark is only inserted into imperceptible regions defined using a visibility map. In the explicit embedding, the watermark is embedded in all Laplacian coefficients with strength determined by a JND (Just-Noticeable-Distortion) threshold. The obtained results are twofold. Firstly, the explicit embedding performs better than the implicit one. Secondly, watermarking schemes based on HVS modeling have advantages over schemes that do not take perceptual aspect into consideration. These advantages are demonstrated in terms of imperceptibility and robustness via various experiments.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127074550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931431
S. Omar, M. Zoulikha, Bernard A. Cousin
Routing in ad hoc mobile networks is a problem which is not satisfactorily solved yet. Traditional techniques of routing are not well adapted to new networks. Indeed, their lack of reactivity with respect to the traffic and network changes make them not easily usable but at the price of an oversizing of the network resources (network bandwidth, node memory utilization, node CPU load, etc). The research community was interested these last years in the improvement of the ad hoc routing, and among the solutions suggested the multipath routing has been considered. Multiple paths are exploited in order to ensure reliability, quick time reaction to changes with a low overhead generated by the control messages. We present in this article, an extension of the well known routing protocol AODV (Ad hoc On-demand Distance Vector). We propose to improve the multipath routing strategy with a path classification enabling the choice of the paths having the best energy level.
移动自组织网络中的路由是一个尚未得到很好解决的问题。传统的路由技术不能很好地适应新的网络。事实上，它们对流量和网络变化缺乏响应性，这使得它们不容易使用，但代价是网络资源(网络带宽、节点内存利用率、节点CPU负载等)的过大。近年来，研究团体对自组织路由的改进很感兴趣，并且在建议的解决方案中考虑了多路径路由。为了确保可靠性和对更改的快速响应以及控制消息产生的低开销，使用了多条路径。在本文中，我们介绍了众所周知的路由协议AODV (Ad hoc On-demand Distance Vector)的扩展。我们提出了一种改进的多路径路由策略，使路径分类能够选择具有最佳能级的路径。
{"title":"Energy efficiency in ad hoc wireless networks with node-disjoint path routing","authors":"S. Omar, M. Zoulikha, Bernard A. Cousin","doi":"10.1109/WOSSPA.2011.5931431","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931431","url":null,"abstract":"Routing in ad hoc mobile networks is a problem which is not satisfactorily solved yet. Traditional techniques of routing are not well adapted to new networks. Indeed, their lack of reactivity with respect to the traffic and network changes make them not easily usable but at the price of an oversizing of the network resources (network bandwidth, node memory utilization, node CPU load, etc). The research community was interested these last years in the improvement of the ad hoc routing, and among the solutions suggested the multipath routing has been considered. Multiple paths are exploited in order to ensure reliability, quick time reaction to changes with a low overhead generated by the control messages. We present in this article, an extension of the well known routing protocol AODV (Ad hoc On-demand Distance Vector). We propose to improve the multipath routing strategy with a path classification enabling the choice of the paths having the best energy level.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129815480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-05-09DOI: 10.1109/WOSSPA.2011.5931476
M. Neinavaie, M. H. Shariat, M. Biguesh, S. Gazor
The performance of symbol detection in multiple-input multiple-output (MIMO) communication systems may considerably be degraded in the case of imperfect channel state information (ICSI). This paper addresses the problem of MIMO detection considering ICSI. We propose a detector which is robust against ICSI and in addition, two implementation methods are presented for the detector. Computer simulations are utilized to illustrate the performance of the proposed detectors in the colored environment.
{"title":"ML detection in MIMO communication systems in the presence of channel estimation error","authors":"M. Neinavaie, M. H. Shariat, M. Biguesh, S. Gazor","doi":"10.1109/WOSSPA.2011.5931476","DOIUrl":"https://doi.org/10.1109/WOSSPA.2011.5931476","url":null,"abstract":"The performance of symbol detection in multiple-input multiple-output (MIMO) communication systems may considerably be degraded in the case of imperfect channel state information (ICSI). This paper addresses the problem of MIMO detection considering ICSI. We propose a detector which is robust against ICSI and in addition, two implementation methods are presented for the detector. Computer simulations are utilized to illustrate the performance of the proposed detectors in the colored environment.","PeriodicalId":343415,"journal":{"name":"International Workshop on Systems, Signal Processing and their Applications, WOSSPA","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130486360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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