Browsing by Issue Date
Now showing items 361-380 of 4497
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Distributed estimation with channel estimation error over orthogonal fading channels
(IEEE, 2007)We study distributed estimation of a source corrupted by an additive Gaussian noise and observed by sensors which are connected to a fusion center with unknown orthogonal (parallel) flat Rayleigh fading channels. The fading ... -
Channel estimation for MIMO-OFDM systems in fixed broadband wireless applications
(IEEE, 2007)Systems employing multiple transmit and receive antennas known as multiple input multiple output (MIMO) systems can be used with OFDM to improve the resistance to channel impairments. Thus the technologies of OFDM and MIMO ... -
An efficient joint data detection and channel estimation technique for uplink MC-CDMA systems based on SAGE algorithm
(IEEE, 2007)This paper is concerned with joint channel estimation and data detection for uplink multicarrier code-division multiple-access (MC-CDMA) systems in the presence of frequency fading channel. The detection and estimation ... -
EM-Based MAP channel estimation and data detection for downlink MCC-CDMA systems
(IEEE, 2007)In this work we propose a joint MAP channel estimation and data detection technique based on the Expectation Maximization (EM) method with paralel interference cancelation(PIC) for downlink multi-carrier (MC) code division ... -
EM-based joint data detection and channel estimation for uplink MC-CDMA systems over frequency selective channels
(IEEE, 2007)This paper is concerned with joint channel estimation and data detection for uplink multicarrier code-division multiple-access (MC-CDMA) systems in the presence of frequency fading channel. The detection and estimation ... -
Effect of channel estimation errors on the performance of space time coded systems with antenna selection
(IEEE, 2007)This paper presents the effects of channel estimation errors on the performance especially diversity gain of space-time coded systems with antenna selection. We consider maximum signal to noise ratio as the antenna selection ... -
An intelligent approach to ERP software selection through fuzzy ANP
(Taylor & Francis, 2007)During the implementations of enterprise resource planning (ERP) systems most companies have experienced some problems one of which is how to determine the best ERP software satisfying their needs and expectations. Because ... -
A hybrid approach to machine-tool selection through AHP and simulation
(Taylor & Francis, 2007)The selection process of a machine tool has been a critical issue for companies for years because the improper selection of a machine tool might cause many problems having a negative effect on productivity precision ... -
A combined fuzzy AHP-goal programming approach to assembly-line selection
(IOS Press, 2007)In mass production assembly-line balancing (ALB) problem has been a critical and repetitive issue for companies for long time. On the other hand equipment selection for stations has also been another important problem at ... -
Joint data detection and channel estimation for uplink MC-CDMA systems over frequency selective channels
(Springer, 2007)This paper is concerned with joint channel estimation and data detection for uplink multicarrier code-division multiple-access (MC-CDMA) systems ill the presence of frequency fading channel. The detection and estimation ... -
Prevention of complications in laparoscopic hysterectomy: Experience with 1120 cases performed by a single surgeon
(Elsevier Science, 2007)STUDY OBJECTIVE: The aim of this study is to describe a safe technique without any ureteral DESIGN: Prospective study (Canadian Task Force classification II-3). SETTING: Centre Hospitalier Interregional Edith Cavell ... -
The surgical treatment of atrial fibrillation
(Turkish Soc Cardiology, 2007)The surgical treatment of atrial fibrillation (AF) has entered a new era with the development of new tools and advanced techniques. The Maze III operation remains as the gold standard for the surgical treatment of AF. ... -
Iterative channel estimation and decoding of turbo coded SFBC-OFDM systems
(IEEE, 2007)We consider the design of turbo receiver structures for space-frequency block coded orthogonal frequency division multiplexing (SFBC-OFDM) systems in the presence of unknown frequency and time selective fading channels. ... -
Thermal rearrangement of 2-acetoxy-266-trimethylbicyclo[3.1.0]hexane: Theoretical elucidation of the mechanism
(Elsevier Science, 2007)Bicyclohexenes are believed to be the immediate precursors of aromatic compounds. As a part of the exploratory study of thermal aromatization reactions 266-trimethylbicyclo[3.1.0]hexan-2-ol and its ester derivative ... -
Design of practical matching networks with lumped elements via modeling
(IEEE, 2007)It is a common practice to utilize commercially available software tools to design matching networks for wireless communication systems. Most of these tools require a properly selected matching network topology with good ... -
Performance of space-time coded systems with transmit antenna selection
(IEEE, 2007)We deal with transmit antenna selection for space-time coded (STC) systems over multiple input multiple output (MIMO) channels. Using pairwise error probability analysis and simulation results we show that transmit antenna ... -
Reflectance-based Foster impedance data modeling
(Fachverlag Schiele Schon, 2007)A reflectance-based method is presented to model a set of given Foster impedance data as a lossless singly terminated two-port consisting of lumped-elements in short or open termination. The basis of the new method rests ... -
COMP 297-Experimental and molecular docking simulation studies of Histone deacetylases (HDACs) enzyme inhibitors
(Amer Chemical Soc, 2007)[Abstract Not Available] -
Thermal rearrangement of 2-acetoxy-266 trimethylbicyclo[3.1.0]hexane: Theoretical elucidation of the mechanism
(Amer Chemical Soc, 2007)[Abstract Not Available] -
Posterior vitrectomy under topical anesthesia
(Elsevier, 2007)Background: To determine the safety and efficacy of topical anesthesia in posterior vitrectomy. Methods: A total of 93 patients (93 eyes) with various vitreoretinal diseases not needing scleral buckling and with short ...