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# IEEE Transactions on Vehicular Technology

## Filter Results

Displaying Results 1 - 25 of 54

Publication Year: 2009, Page(s):C1 - C4
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• ### IEEE Transactions on Vehicular Technology publication information

Publication Year: 2009, Page(s): C2
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• ### Measurement and Modeling of Ultrawideband TOA-Based Ranging in Indoor Multipath Environments

Publication Year: 2009, Page(s):1046 - 1058
Cited by:  Papers (80)  |  Patents (3)
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In this paper, we present the results of the measurement and modeling of ultrawideband (UWB) time of arrival (TOA)-based ranging in different indoor multipath environments. We provide a detailed characterization of the spatial behavior of ranging, where we focus on the statistics of the ranging error in the presence and absence of the direct path (DP) and evaluate the path loss behavior in the for... View full abstract»

• ### Outdoor-to-Indoor Propagation Loss Prediction in 800-MHz to 8-GHz Band for an Urban Area

Publication Year: 2009, Page(s):1059 - 1067
Cited by:  Papers (37)
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In mobile communication systems, it is important to clarify the outdoor-to-indoor propagation loss (building penetration loss) characteristics to improve the quality of communication within buildings. This paper proposes a penetration loss prediction formula that is derived based on measurement results. We measured and analyzed the building penetration loss at higher frequencies that are appropria... View full abstract»

• ### Leaky Waveguide for Train-to-Wayside Communication-Based Train Control

Publication Year: 2009, Page(s):1068 - 1076
Cited by:  Papers (21)
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In guided urban automated transportation systems, the maintenance of a high-quality broadband train-to-wayside communication at all locations along the track poses a major problem. Several techniques are currently used. However, to achieve sufficient rates, a communication frequency range of 2-6 GHz is widely in use. At these frequencies, the natural propagation in tunnels usually works efficientl... View full abstract»

• ### Performance Enhancement of MEMS-Based INS/GPS Integration for Low-Cost Navigation Applications

Publication Year: 2009, Page(s):1077 - 1096
Cited by:  Papers (121)
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The relatively high cost of inertial navigation systems (INSs) has been preventing their integration with global positioning systems (GPSs) for land-vehicle applications. Inertial sensors based on microelectromechanical system (MEMS) technology have recently become commercially available at lower costs. These relatively lower cost inertial sensors have the potential to allow the development of an ... View full abstract»

• ### Improvement on the Cold Cranking Capacity of Commercial Vehicle by Using Supercapacitor and Lead-Acid Battery Hybrid

Publication Year: 2009, Page(s):1097 - 1105
Cited by:  Papers (16)
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Paralleling a supercapacitor with a lead-acid battery decreases the size and the capacity of the starting battery that is required for cold cranking. A simple circuit model for the hybrid power source is introduced and analyzed, showing that lower effective series resistance (ESR) gives greater effective discharge capacity. Laboratory experiments and road tests on reduced-volume batteries that are... View full abstract»

• ### A Navigation-Field-Based Semi-Autonomous Nonholonomic Vehicle-Parking Assistant

Publication Year: 2009, Page(s):1106 - 1118
Cited by:  Papers (12)
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We present a closed-loop approach to solve the semi-autonomous nonholonomic vehicle-parking assistant problem. The method allows for a priori unknown and potentially high vehicle speeds and dynamic environment variations. The computationally low-cost, memory-efficient algorithm respects constraints on the steering angle and its first two derivatives, allowing for comfortable, safe, a... View full abstract»

• ### Using Hidden Markov Models in Vehicular Crash Detection

Publication Year: 2009, Page(s):1119 - 1128
Cited by:  Papers (4)
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This paper presents a system for automotive crash detection based on hidden Markov models (HMMs). The crash pulse library used for training comprises a number of head-on and oblique angular crash events involving rigid and offset deformable barriers. Stochastic distribution characteristics of crash signals are validated to ensure conformity with the modeling assumptions. This step is achieved by a... View full abstract»

• ### INS/GPS Integration: Global Observability Analysis

Publication Year: 2009, Page(s):1129 - 1142
Cited by:  Papers (45)
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Observability is an important aspect of the state-estimation problem in the integration of the inertial navigation system (INS) and the Global Positioning System (GPS) as it determines the existence and nature of solutions. In most previous research, conservative observability concepts, e.g., local observability and linear observability, have extensively been used to locally characterize the estim... View full abstract»

• ### Adaptive Load Balancing MDP-Based Approach of Two-Dimensional Spreading for VSF-OFCDM in 4G Next-Generation Cellular Communications

Publication Year: 2009, Page(s):1143 - 1156
Cited by:  Papers (7)
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The variable spreading factor-orthogonal frequency and code division multiplexing (VSF-OFCDM) system has been proposed as the forward link interface for achieving a high data rate in fourth-generation (4G) mobile communications. VSF-OFCDM allocates the orthogonal channelization codes of an orthogonal variable spreading factor (OVSF) code tree in 2-D spreading in the time and frequency domains but ... View full abstract»

• ### Mobile Location Estimator in a Rough Wireless Environment Using Extended Kalman-Based IMM and Data Fusion

Publication Year: 2009, Page(s):1157 - 1169
Cited by:  Papers (51)
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An extended Kalman-based interacting multiple model (EK-IMM) smoother is proposed for mobile location estimation with the data fusion of the time of arrival (TOA) and the received signal strength (RSS) measurements in a rough wireless environment. The extended Kalman filter is used for nonlinear estimation. The IMM is employed as a switch between the line-of-sight (LOS) and non-LOS (NLOS) states, ... View full abstract»

• ### Selective Time-Domain Filtering for Reduced-Complexity PAPR Reduction in OFDM

Publication Year: 2009, Page(s):1170 - 1176
Cited by:  Papers (10)
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A new selective time-domain filtering scheme for reducing the peak-to-average power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems is proposed. The proposed scheme not only relies on conventional pilot symbol channel estimation and demodulation techniques to recover the data in OFDM systems but also uses additional pilot symbols. The proposed scheme has greatly reduced c... View full abstract»

• ### Performance Analysis of Multistage Interference Cancellation for Asynchronous TH-UWB Systems in Multipath Fading Channels

Publication Year: 2009, Page(s):1177 - 1189
Cited by:  Papers (2)
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In this paper, we present an accurate analytical method for an asynchronous time-hopping (TH) ultrawideband (UWB) system using multistage interference cancellation (MIC) in multipath fading channels. To model the asynchronous transmission, we first investigate the chip-asynchronous case and extend the results of chip-asynchronous transmission into completely asynchronous transmission as a more gen... View full abstract»

• ### Optimal Resource Allocation for Multiuser MIMO-OFDM Systems With User Rate Constraints

Publication Year: 2009, Page(s):1190 - 1203
Cited by:  Papers (51)  |  Patents (2)
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With the proliferation of wireless services, personal connectivity is quickly becoming ubiquitous. As the user population demands greater multimedia interactivity, data rate requirements are set to soar. Future wireless systems, e.g., multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM), need to cater to not only a burgeoning subscriber pool but also to a higher th... View full abstract»

• ### Novel Scheme for Joint Estimation of SNR, Doppler, and Carrier Frequency Offset in Double-Selective Wireless Channels

Publication Year: 2009, Page(s):1204 - 1217
Cited by:  Papers (13)
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As receiver performance will be degraded by carrier frequency offset (CFO), Doppler shift, and low signal-to-noise ratio (SNR), a novel estimator that jointly considers CFO, Doppler shift, and SNR is proposed in this paper. The proposed algorithm uses the Fourier transform (FT) to calculate the power spectral density of time-varying channels through channel estimates. Then, a new periodogram techn... View full abstract»

• ### Performance of Decode-and-Forward Cooperative Communications Over Nakagami- $m$ Fading Channels

Publication Year: 2009, Page(s):1218 - 1228
Cited by:  Papers (53)
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In this paper, we analyze the symbol error rate (SER) performance of decode-and-forward (DF) cooperative communications over Nakagami-m fading channels. For the classical three-node cooperation model, the exact SER expressions for both M phase shift keying (PSK) and M quadrature amplitude modulation (QAM) are derived. For easy usage, we also provide asymptotic approximations for the SER. In the an... View full abstract»

• ### Energy-Efficient Video Transmission Over a Wireless Link

Publication Year: 2009, Page(s):1229 - 1244
Cited by:  Papers (22)
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Energy minimization is an important design goal in wireless video transmission. We examine how the RF energy and the analog circuit energy, which account for a large part of the energy consumption for wireless video transmission, can be controlled with physical-layer parameters (e.g., modulation level, bit rate, bit error rate, and multiple access interference) and link-layer specifications (e.g.,... View full abstract»

• ### SSSD-Based Mobile Positioning: On the Accuracy Improvement Issues in Distance and Location Estimations

Publication Year: 2009, Page(s):1245 - 1254
Cited by:  Papers (10)
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The stationary signal-strength-difference (SSSD)-based positioning technique has been proposed as a cost-effective, low-complexity solution. The positioning accuracy with this technique, however, is limited, as a result of the large error in the distance. In this paper, we contribute a simple and efficient method for the accuracy improvement issues in the distance. Starting from the concept of the... View full abstract»

• ### The Impact of Channel Feedback on Opportunistic Relay Selection for Hybrid-ARQ in Wireless Networks

Publication Year: 2009, Page(s):1255 - 1268
Cited by:  Papers (25)  |  Patents (1)
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This paper presents a decentralized relay selection protocol for a dense wireless network and describes channel feedback strategies that improve its performance. The proposed selection protocol supports hybrid automatic repeat request transmission where relays forward parity information to the destination in the event of a decoding error. Channel feedback is employed for refining the relay selecti... View full abstract»

• ### Prony and Polynomial Approximations for Evaluation of the Average Probability of Error Over Slow-Fading Channels

Publication Year: 2009, Page(s):1269 - 1280
Cited by:  Papers (41)
| | PDF (405 KB) | HTML

A novel and simple semianalytical method for evaluating the average probability of transmission error for digital communication systems that operate over slow-fading channels is presented. The proposed method applies a sum of exponentials fit known as the Prony approximation to the conditional probability of error. Hence, knowledge of the moment-generating function of the instantaneous signal-to-n... View full abstract»

• ### Experiments on FPGA-Implemented Eigenbeam MIMO-OFDM With Transmit Antenna Selection

Publication Year: 2009, Page(s):1281 - 1291
Cited by:  Papers (6)
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This paper describes the performance of eigenbeam multiple-input multiple-output (MIMO) with transmit antenna selection using orthogonal frequency-division multiplexing (OFDM), as measured in a testbed implemented using field-programmable gate arrays (FPGAs); it also targets the downlink performance improvement of wireless local area networks (LANs). For this verification, we employ a determinant-... View full abstract»

• ### An Analytical Approach for Finite Block Length Performance Analysis of Turbo Frequency-Domain Equalization

Publication Year: 2009, Page(s):1292 - 1301
Cited by:  Papers (16)
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Turbo frequency-domain equalization has been shown to be an efficient technique in overcoming intersymbol interference (ISI). To analyze this system, the extrinsic information transfer (EXIT) chart can be employed to avoid extensive simulations. The histogram-based approach in the EXIT chart makes this method considerably complex in analyzing the performance of turbo equalizers over nonstatic chan... View full abstract»

• ### Wavelet-Based Semiblind Channel Estimation for Ultrawideband OFDM Systems

Publication Year: 2009, Page(s):1302 - 1314
Cited by:  Papers (15)
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Ultrawideband (UWB) communications involve very sparse channels, because the bandwidth increase results in a better time resolution. This property is used in this paper to propose an efficient algorithm that jointly estimates the channel and the transmitted symbols. More precisely, this paper introduces an expectation-maximization (EM) algorithm within a wavelet-domain Bayesian framework fo... View full abstract»

• ### Multiple-Access Performance Analysis of Combined Time-Hopping and Spread-Time CDMA System in the Presence of Narrowband Interference

Publication Year: 2009, Page(s):1315 - 1328
Cited by:  Papers (5)
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We consider a combined time-hopping (TH) and spread-time (ST) multiple-access technique that uses an internal code. In this method, the duration of each bit is divided into Ns frames. The outputs of the encoder and a pseudorandom (PN) sequence specify the number of the frame in which the data bit is transmitted in ST code-division multiple-access (ST-CDMA) form using the second PN sequence.... View full abstract»

## Aims & Scope

IEEE Transactions on Vehicular Technology covers land, airborne, and maritime mobile services, vehicular electrotechnology, equipment, and systems identified with the automotive industry.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Nei Kato, Professor
Graduate School of Information Sciences (GSIS)
Tohoku University
Aramaki-Aoba 6-3-09, Aoba-ku, Sendai, 980-8579, JAPAN
Email: kato@it.is.tohoku.ac.jp