# IEEE Transactions on Vehicular Technology

## Filter Results

Displaying Results 1 - 25 of 70

Publication Year: 2008, Page(s):C1 - C4
| |PDF (70 KB)
• ### IEEE Transactions on Vehicular Technology publication information

Publication Year: 2008, Page(s): C2
| |PDF (39 KB)
• ### Characterizing Temporal SNR Variation in 802.11 Networks

Publication Year: 2008, Page(s):2002 - 2013
Cited by:  Papers (10)
| |PDF (488 KB) | HTML

The analysis and design of wireless medium access control (MAC) protocols, coding schemes, and transmission algorithms can significantly benefit from an understanding of the channel quality variation. We attempt to represent channel quality variation using a finite-state birth-death Markov model. We outline a method to compute the parameters of the model based on measured traces obtained using com... View full abstract»

• ### The 5-GHz Airport Surface Area Channel—Part I: Measurement and Modeling Results for Large Airports

Publication Year: 2008, Page(s):2014 - 2026
Cited by:  Papers (28)
| |PDF (1969 KB) | HTML

We describe results from a channel measurement and modeling campaign for the airport surface environment in the 5-GHz band. Using a 50-MHz bandwidth test signal, thousands of power delay profiles (PDPs) were obtained and processed to develop empirical tapped-delay line statistical channel models for large airports. A log-distance path loss model was also developed. The large airport surface channe... View full abstract»

• ### The 5-GHz Airport Surface Area Channel—Part II: Measurement and Modeling Results for Small Airports

Publication Year: 2008, Page(s):2027 - 2035
Cited by:  Papers (14)
| |PDF (1310 KB) | HTML

This paper describes results from a channel measurement campaign performed at several small airports in the U.S. in the 5-GHz band. This paper is a companion to another paper, which describes channel models for large airports. We classify the small airport surface channel into three propagation regions based upon different delay dispersion conditions. The channel characteristics of these regions i... View full abstract»

• ### Evaluation of Vehicle Penetration Loss at Wireless Communication Frequencies

Publication Year: 2008, Page(s):2036 - 2041
Cited by:  Papers (40)
| |PDF (328 KB) | HTML

Measurements and simulations of the vehicle penetration loss (VPL) at 600, 900, 1800, and 2400 MHz are presented. The measured average penetration loss varies from 3.2 to 23.8 dB, depending on frequency, illuminated vehicle side, and in-vehicle antenna orientation. VPL tends to follow a lognormal distribution. Reported penetration loss values are compared to previous measurements from the literatu... View full abstract»

• ### Three-Dimensional Modeling, Simulation, and Capacity Analysis of Space–Time Correlated Mobile-to-Mobile Channels

Publication Year: 2008, Page(s):2042 - 2054
Cited by:  Papers (66)
| |PDF (594 KB) | HTML

A 3-D reference model is proposed for multiple-input multiple-output (MIMO) mobile-to-mobile (M-to-M) multipath-fading channels. From this model, a closed-form joint space-time correlation function is derived for a 3-D nonisotropic scattering environment. Two sum-of-sinusoids-based 3-D simulation models for MIMO M-to-M multipath-fading channels are proposed. The statistics of the simulation models... View full abstract»

• ### Modeling and Hardware Implementation Aspects of Fading Channel Simulators

Publication Year: 2008, Page(s):2055 - 2069
Cited by:  Papers (18)
| |PDF (2490 KB) | HTML

A channel simulator is an essential component in the development and accurate performance evaluation of wireless systems. Two major approaches have been widely used to produce statistically accurate fading variates, namely shaping the flat spectrum of Gaussian variates using digital filters and sum-of-sinusoids (SOS)-based methods. Efficient design and implementation techniques for these schemes a... View full abstract»

• ### Multistage MMSE PIC Space–Time Receiver With Non-Mutually Exclusive Grouping

Publication Year: 2008, Page(s):2070 - 2080
Cited by:  Papers (1)
| |PDF (425 KB) | HTML

The arrival of new data services for wireless mobile communications requires an efficient use of the available bandwidth. Interference-limited cellular systems based on code-division multiple access (CDMA) can benefit from multiuser detection (MUD) and beamforming with antenna array to reduce multiple-access interference. Group-based techniques have been proposed to reduce the complexity of space-... View full abstract»

• ### Switched Causal Modeling of Transmission With Clutch in Hybrid Electric Vehicles

Publication Year: 2008, Page(s):2081 - 2088
Cited by:  Papers (31)
| |PDF (1216 KB) | HTML

Certain difficulties arise when attempting to model a clutch in a power train transmission due to its nonlinear behavior. Two different states have to be taken into account-the first being when the clutch is locked and the second being when the clutch is slipping. In this paper, a clutch model is developed using the energetic macroscopic representation, which is, in turn, used in the modeling of c... View full abstract»

• ### A Suitable Method for Ecovehicles to Control Surge Voltage Occurring at Motor Terminals Connected to PWM Inverters and to Control Induced EMI Noise

Publication Year: 2008, Page(s):2089 - 2098
Cited by:  Papers (14)
| |PDF (1683 KB) | HTML

A method that is suitable for ecovehicles, which controls the surge voltage appearing at motor terminals that are connected to a pulsewidth modulation inverter with short leads that are less than the critical cable length (i.e., the shortest length at which full reflection may occur), is described here. Also, a method to control electromagnetic interference (EMI) noise, which is induced by the sur... View full abstract»

• ### Circularity-Based I/Q Imbalance Compensation in Wideband Direct-Conversion Receivers

Publication Year: 2008, Page(s):2099 - 2113
Cited by:  Papers (126)  |  Patents (15)
| |PDF (686 KB) | HTML

Communication receivers that utilize I/Q downconversion are troubled by amplitude and phase mismatches between the analog I and Q branches. These mismatches are unavoidable in practice and reduce the obtainable image frequency attenuation to the 20-40-dB range in practical receivers. In wideband multichannel receivers, where the overall bandwidths are in the range of several megahertz and the inco... View full abstract»

• ### Finger Replacement Schemes for RAKE Receivers in the Soft Handover Region With Multiple Base Stations

Publication Year: 2008, Page(s):2114 - 2122
Cited by:  Papers (8)
| |PDF (1333 KB) | HTML

We propose and analyze new finger replacement techniques for RAKE reception in the soft handover (SHO) region with multiple base stations. The proposed schemes are basically based on the block comparison among groups of resolvable paths from different base stations and lead to the reduction of complexity while offering commensurate performance in comparison with previously proposed schemes. Relyin... View full abstract»

• ### Overloaded Array Processing Using Genetic Algorithms With Soft-Biased Initialization

Publication Year: 2008, Page(s):2123 - 2131
Cited by:  Papers (13)
| |PDF (326 KB) | HTML

The application of genetic algorithm (GA) techniques to the problem of overloaded arrays, in which the number of transmitted narrowband signals is greater than the number of receiver array elements, is explored. A new receiver algorithm is presented, which achieves nearly optimal performance but requires significantly less complexity than the maximum-likelihood joint detection (MLJD) receiver. It ... View full abstract»

• ### An Efficient Design Methodology for Constant Power Link Adaptation Schemes in Short-Range Scenarios

Publication Year: 2008, Page(s):2132 - 2144
Cited by:  Papers (2)
| |PDF (544 KB) | HTML

The energy-efficient design of short-distance wireless communication systems requires the inclusion of circuit energy consumption in the system's total energy budget. We consider the design of constant power link adaptation schemes in which circuit energy consumption is included in the total energy budget and in which the system's instantaneous bit error rate (BER) must never exceed a predefined t... View full abstract»

• ### Joint Adaptive Modulation and Diversity Combining With Downlink Power Control

Publication Year: 2008, Page(s):2145 - 2152
Cited by:  Papers (7)
| |PDF (326 KB) | HTML

We consider the problem of finding low-complexity, bandwidth-efficient, and processing-power-efficient transmission schemes for a downlink scenario under the framework of diversity combining. Capitalizing on recent results for joint adaptive modulation and diversity combining (AMDC) schemes, we design and analyze two AMDC schemes that utilize power control to reduce the radiated power and, thus, t... View full abstract»

• ### Direction-of-Arrival Estimation System for Multipath Propagation in Code-Division Multiple-Access Systems With Synthesized Virtual Planar Array Using Pilot Signals

Publication Year: 2008, Page(s):2153 - 2163
Cited by:  Papers (7)
| |PDF (1120 KB) | HTML

Here, we propose a method for estimating the direction of arrival (DOA) using pilot signals in code-division multiple-access (CDMA) systems. We also report the evaluation of the performance of the proposed method by conducting simulations and experiments in an anechoic chamber and an outdoor environment. This method estimates the DOA of the arrival waves by synthesizing the data received by a virt... View full abstract»

• ### MAI and ICI of Asynchronous Uplink MC-CDMA With Frequency Offset

Publication Year: 2008, Page(s):2164 - 2179
Cited by:  Papers (14)
| |PDF (713 KB) | HTML

In this paper, we analyze the performance of random spreading code-division multiple-access (CDMA) systems with a multicarrier in asynchronous uplink channels. We first derive the probability density function (pdf) of the multiple-access interference (MAI) plus noise and then extend the results to orthogonal frequency division multiplexing (OFDM) with intercarrier interference (ICI) that is caused... View full abstract»

• ### Infrastructure Relay Transmission With Cooperative MIMO

Publication Year: 2008, Page(s):2180 - 2188
Cited by:  Papers (37)  |  Patents (2)
| |PDF (343 KB) | HTML

An infrastructure relay system that transfers information from a base station to a randomly located mobile station (MS) using fixed-location relay stations (RSs) is studied. Transmission rates are derived for serial, parallel, and hybrid relay transmissions, considering the utilization of RSs as a means to extend the dimensionality of a multiple-input-multiple-output (MIMO) transmission. The deriv... View full abstract»

• ### A Novel Nonlinear Joint Transmitter-Receiver Processing Algorithm for the Downlink of Multiuser MIMO Systems

Publication Year: 2008, Page(s):2189 - 2204
Cited by:  Papers (23)
| |PDF (851 KB) | HTML

This paper focuses on signal processing algorithms for the downlink of multiuser multiple-input multiple-output (MIMO) systems with multiple-antenna mobiles. A novel nonlinear joint transmitter-receiver processing algorithm is proposed based on the zero-forcing (ZF) criterion. In this algorithm, nonlinear Tomlinson-Harashima precoding (THP) is applied at the base station, whereas linear receiver p... View full abstract»

• ### A Data Modem for GSM Voice Channel

Publication Year: 2008, Page(s):2205 - 2218
Cited by:  Papers (30)  |  Patents (1)
| |PDF (470 KB) | HTML

This paper introduces a novel approach to data communication over the global system for mobile communications (GSM) voice channel. It is based on the concept of ldquosymbolsrdquo-a set of predefined signals with finite bandwidths. Data are encoded into the symbols, and the symbols are voice coded as they were speech, modulated into the GSM signal, sent over the air, GSM demodulated, voice decoded,... View full abstract»

• ### Semi-Blind Time-Domain Equalization for MIMO-OFDM Systems

Publication Year: 2008, Page(s):2219 - 2227
Cited by:  Papers (10)
| |PDF (303 KB) | HTML

In this paper, a semi-blind time-domain equalization technique is proposed for general multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The received OFDM symbols are shifted by more than or equal to the cyclic prefix (CP) length, and a blind equalizer is designed to completely suppress both intercarrier interference (ICI) ... View full abstract»

• ### Spatial Modulation

Publication Year: 2008, Page(s):2228 - 2241
Cited by:  Papers (749)  |  Patents (8)
| |PDF (2009 KB) | HTML

Spatial modulation (SM) is a recently developed transmission technique that uses multiple antennas. The basic idea is to map a block of information bits to two information carrying units: 1) a symbol that was chosen from a constellation diagram and 2) a unique transmit antenna number that was chosen from a set of transmit antennas. The use of the transmit antenna number as an information-bearing u... View full abstract»

• ### A Train-Once Approach for Location Estimation Using the Directional Propagation Model

Publication Year: 2008, Page(s):2242 - 2256
Cited by:  Papers (4)
| |PDF (1633 KB) | HTML

Location estimation that is based on the mobile phone network has drawn considerable attention in the field of wireless communications. Among the different mobile location estimation methods, the one that estimates a mobile station location with reference to a wave propagation model is shown to be effective and is applicable to different kinds of cellular networks, including Global System for Mobi... View full abstract»

• ### Average BER Analysis for $M$-ary FSK Signals in Nakagami-$q$ (Hoyt) Fading With Noncoherent Diversity Combining

Publication Year: 2008, Page(s):2257 - 2267
Cited by:  Papers (3)
| |PDF (413 KB) | HTML

This paper analyzes the average bit error rate (BER) of noncoherent M-ary frequency-shift keying (FSK) signals over multichannel nonidentically distributed Nakagami-q (Hoyt) fading employing diversity combining. The first part of the paper considers the conventional postdetection noncoherent equal-gain combiner (NC-EGC), in which a Fourier series inversion formula is employed to derive a simple an... View full abstract»

## Aims & Scope

The IEEE Transactions on Vehicular Technology is dedicated to the publication of peer-reviewed original contributions of research regarding the theory and practice of electrical and electronics technology in vehicles and vehicular systems.

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