# IEEE Transactions on Vehicular Technology

## Filter Results

Displaying Results 1 - 25 of 53

Publication Year: 2010, Page(s):C1 - C4
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• ### IEEE Transactions on Vehicular Technology publication information

Publication Year: 2010, Page(s): C2
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• ### Special Section on Channel Modeling and Estimation

Publication Year: 2010, Page(s): 2
Cited by:  Papers (1)
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• ### Observation-Based Time-Varying MIMO Channel Model

Publication Year: 2010, Page(s):3 - 15
Cited by:  Papers (3)
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This paper presents a method to model and simulate time-varying narrowband multiple-input-multiple-out (MIMO) channels based on observations from measured data. The data were obtained in a vehicular urban environment, with a fixed transmitter array and a mobile receiver array. The measured channel response matrices were decomposed to isolate the coupling from the transmitter eigenbasis to the rece... View full abstract»

• ### Time-Varying Path-Shadowing Model for Indoor Populated Environments

Publication Year: 2010, Page(s):16 - 28
Cited by:  Papers (25)
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This paper presents a path-shadowing model for indoor populated environments that has been developed based on computer simulations. The propagation paths between the transmitting and receiving points in an empty rectangular space are determined using the ray-tracing method, in which moving quasi-human bodies that are modeled as cylinders with a finite height are generated in the space, and interse... View full abstract»

• ### A Method for Simulating Complex Nakagami Fading Time Series With Nonuniform Phase and Prescribed Autocorrelation Characteristics

Publication Year: 2010, Page(s):29 - 35
Cited by:  Papers (10)
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The availability of an accurate and systematic channel simulation technique is critical for the verification of the performance of digital radio transceivers designed for use on wireless channels. Despite the abundant results on channel simulation techniques available in the literature, an accurate technique for simulating Nakagami- m fading signals that have nonuniform phase distributions ... View full abstract»

• ### A Novel Inversion Method for Outdoor Coverage Prediction in Wireless Cellular Network

Publication Year: 2010, Page(s):36 - 47
Cited by:  Papers (10)
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A novel coverage-prediction method for outdoor radio propagation based on the inversion theory is proposed here. Coverage prediction in a wireless cellular network is treated as an inverse problem instead of using high-precision geometric modeling. More precisely, the problem is solved by an inversion of the measured data under some a priori constraints, and the complicated propagation-pred... View full abstract»

• ### Multipath Parameter Estimation for Radio Propagation Channel Measurements With a Vector Network Analyzer

Publication Year: 2010, Page(s):48 - 52
Cited by:  Papers (4)
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This paper proposes a new approach to estimating multipath parameters such as time delays and attenuation factors for channel measurements using a vector network analyzer. In the proposed scheme, we introduce a coarse-and-fine time-delay-estimation scheme and attenuation-factor-estimation schemes. The coarse time-delay estimation employs a superresolution technique based on the generalized eigenva... View full abstract»

• ### Semiblind Channel Estimation for MIMO Single Carrier With Frequency-Domain Equalization Systems

Publication Year: 2010, Page(s):53 - 62
Cited by:  Papers (10)  |  Patents (1)
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We propose a semiblind channel-estimation method for multiple-input multiple-output (MIMO) single carrier with frequency-domain equalization systems. By taking advantage of periodic precoding and the block circulant channel model after cyclic prefix removal, we obtain the channel-product matrices by solving a series of decoupled linear systems, which is gained from the covariance matrix of the rec... View full abstract»

• ### Optical Wireless Systems Employing Adaptive Collaborative Transmitters in an Indoor Channel

Publication Year: 2010, Page(s):63 - 74
Cited by:  Papers (7)
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We propose a novel optical wireless (OW) system based on a power adaptive multibeam spot-diffusing transmitter serving multiple seven-segment maximum ratio combining (MRC) angle diversity receivers. A feedback link is assumed between the transceivers so that each receiver conveys to the multibeam transmitter the new beams transmit power weights to be used to achieve the best signal quality at a gi... View full abstract»

• ### Implementation and Development of an Adaptive Steering-Control System

Publication Year: 2010, Page(s):75 - 83
Cited by:  Papers (33)
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In this paper, an adaptive steering-control system for a steer-by-wire system, which consists of a vehicle directional-control unit and a driver-interaction unit, is developed. The adaptive online estimation method is used to identify the dynamic parameters of the vehicle directional-control and driver-interaction units. A nonlinear 4-degree-of-freedom (DOF) vehicle model, including the longitudin... View full abstract»

• ### A Transmission-Actuated Energy-Management Strategy

Publication Year: 2010, Page(s):84 - 92
Cited by:  Papers (19)
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In this paper, we analyze a hybrid electric vehicle structure and propose a simple and computationally cheap yet close-to-optimal energy-management strategy. The underlying hybrid configuration is of parallel type. Furthermore, the parallel hybrid does not include a clutch between the electric motor and the engine. The considered vehicle uses a six-speed dual-clutch transmission (DCT). The propose... View full abstract»

• ### Performance Analysis of TDMA Relay Protocols Over Nakagami- $m$ Fading

Publication Year: 2010, Page(s):93 - 104
Cited by:  Papers (13)
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Several time-division multiple-access (TDMA) cooperative wireless relay protocols and their performances have recently been developed by Nabar, Bolcskei, and Kneubuhler. Their work, however, is limited to an upper bound-based performance analysis for Rayleigh fading. We thus provide an exact analysis of two of their protocols in single-relay and multiple-relay networks over independent identically... View full abstract»

• ### Performance Analysis of OSTBC Transmission in Amplify-and-Forward Cooperative Relay Networks

Publication Year: 2010, Page(s):105 - 113
Cited by:  Papers (51)
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A performance analysis is presented for amplify-and-forward (AF) cooperative relay networks employing transmit antenna diversity with orthogonal space-time block codes (OSTBCs), where multiple antennas are equipped at the transmitter. We develop a symbol-error-rate (SER) and outage performance analysis for OSTBC transmissions with and without cooperative diversity over flat Rayleigh fading channel... View full abstract»

• ### Adaptation in Convolutionally Coded MIMO-OFDM Wireless Systems Through Supervised Learning and SNR Ordering

Publication Year: 2010, Page(s):114 - 126
Cited by:  Papers (31)  |  Patents (2)
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Multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) wireless systems use link adaptation to exploit the dynamic nature of wireless environments. Link adaptation maximizes throughput while maintaining target reliability by adaptively selecting the modulation order and coding rate. Link adaptation is extremely challenging, however, due to the difficulty in predictin... View full abstract»

• ### Channel Capacity Over Generalized Fading Channels: A Novel MGF-Based Approach for Performance Analysis and Design of Wireless Communication Systems

Publication Year: 2010, Page(s):127 - 149
Cited by:  Papers (74)
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Since the trail-blazing paper of C. Shannon in 1948, channel capacity has been regarded as the fundamental information-theoretic performance measure to predict the maximum information rate of a communication system. However, in contrast with the analysis of other important performance measures of wireless communication systems, a unified and general approach for computing the channel capacity over... View full abstract»

• ### Pilot-Based LMMSE Channel Estimation for OFDM Systems With Power–Delay Profile Approximation

Publication Year: 2010, Page(s):150 - 159
Cited by:  Papers (19)
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In linear-minimum-mean-square-error (LMMSE) channel estimation for multicarrier systems, one needs to know the channel correlation function. This poses a problem for systems with a small number of pilots operating in time-varying channels. We propose to approximate the channel power-delay profile (PDP) with a shape that can completely be described in two parameters, namely, the mean delay and the ... View full abstract»

• ### Feedback Reduction for Multiuser OFDM Systems

Publication Year: 2010, Page(s):160 - 169
Cited by:  Papers (8)
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Feedback reduction in multiuser orthogonal frequency-division multiplexing (OFDM) systems has become an important issue due to the excessive amount of feedback required to use opportunistic scheduling, particularly when the number of users and carriers is large. In this paper, we propose a novel feedback-reduction scheme for efficient downlink scheduling. In the proposed scheme, each user determin... View full abstract»

• ### Efficient MIMO Scheduling Algorithms With a Fixed-Time Allocation Ratio

Publication Year: 2010, Page(s):170 - 181
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A scheduling problem that maximizes the system throughput under a constraint on the time-slot allocation ratio of users is considered in the systems having Gaussian-distributed performance metrics, which include multiple-input-multiple-output (MIMO) systems. Two schedulers, which are denoted by the control variance (CV) scheduler and the control mean (CM) scheduler, are proposed in this paper. The... View full abstract»

• ### On Clock Synchronization Algorithms for Wireless Sensor Networks Under Unknown Delay

Publication Year: 2010, Page(s):182 - 190
Cited by:  Papers (62)
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In this paper, three clock-synchronization algorithms for wireless sensor networks (WSNs) under unknown delay are derived. They include the maximum-likelihood estimator (MLE), a generalization of the estimator of Noh , and a novel low-complexity estimator. Their corresponding performance bounds are derived and compared, and complexities are also analyzed. It is found that the MLE achieves the best... View full abstract»

• ### Zero Forcing in General Two-Hop Relay Networks

Publication Year: 2010, Page(s):191 - 202
Cited by:  Papers (35)
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In this paper, we investigate four different two-hop amplify and forward relay networks, which differ on the processing capabilities at the source, relay, and destination nodes. We derive new exact outage probability expressions where zero-forcing processing is performed at the following four areas: (1) source and relay; (2) relay; (3) relay and destination; and (4) destination nodes only. We show... View full abstract»

• ### Soft Linear Precoding for the Downlink of DS/CDMA Communication Systems

Publication Year: 2010, Page(s):203 - 215
Cited by:  Papers (30)
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In this paper, we propose a transmitter-based linear-precoding scheme that outperforms conventional precoding by making use of a portion of the interference between the users in a code-division multiple-access (CDMA) system downlink. The utilization of part of the interference is achieved by selectively orthogonalizing the desired symbols to destructive interference by means of precoding while all... View full abstract»

• ### Iterative Decoding Convergence and Termination of Serially Concatenated Codes

Publication Year: 2010, Page(s):216 - 224
Cited by:  Papers (11)  |  Patents (1)
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In this paper, we demonstrate that the previously proposed arrangements of serially concatenated codes have extrinsic-information-transfer (EXIT) functions that intersect each other at points that are near but not at the (1, 1) point in the top-right-hand corner of the EXIT chart, which is typically associated with elevated error floors. We propose a novel arrangement having EXIT fun... View full abstract»

• ### Low-Rate-Feedback-Assisted Beamforming and Power Control for MIMO-OFDM Systems

Publication Year: 2010, Page(s):225 - 234
Cited by:  Papers (1)
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This paper proposes a novel solution to the problem of beamforming and power control in the downlink of a multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system. This solution is developed in two steps. First, we describe an adaptive beamforming technique that, using a stochastic gradient method, maximizes the power delivered to a mobile terminal. In the pro... View full abstract»

• ### Spatial Transmission Mode Switching in Multiuser MIMO-OFDM Systems With User Fairness

Publication Year: 2010, Page(s):235 - 247
Cited by:  Papers (11)  |  Patents (2)
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Multiantenna radio systems allow accessing the channel in diversity or spatial multiplexing (SMUX) mode. Adequate switching between these modes according to current channel conditions was shown to yield significant performance improvements while requiring little feedback from the receiving side. We present a transmission concept for the downlink of a multiuser multiple-input-multiple-output orthog... 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