A stochastic image-based indoor channel model for use in ultra-wideband 3-d sensor array simulations

2004 ◽  
Author(s):  
K.D. Le ◽  
M.W. Hoffman ◽  
R.D. Palmer
Keyword(s):  
Sensor Array ◽  
Channel Model ◽  
Ultra Wideband

Ultra-wideband channel model for communication around the human body

2006 ◽  
Vol 24 (4) ◽  
pp. 927-933 ◽  
Author(s):  
A. Fort ◽  
J. Ryckaert ◽  
C. Desset ◽  
P. De Doncker ◽  
P. Wambacq ◽  
...  
Keyword(s):  
Human Body ◽  
Channel Model ◽  
Ultra Wideband ◽  
Wideband Channel

scholarly journals A Wideband Channel Model for Intravehicular Nomadic Systems

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
François Bellens ◽  
François Quitin ◽  
Jean-Michel Dricot ◽  
François Horlin ◽  
Aziz Benlarbi-Delaï ◽  
...  
Keyword(s):  
Channel Model ◽  
Temporal Variations ◽  
Rear Seat ◽  
Base Station ◽  
Ultra Wideband ◽  
Personal Area Networks ◽  
Vehicular Communication ◽  
Single Input Single Output ◽  
Single Output ◽  
Data Rates

The increase in electronic entertainment equipments within vehicles has rendered the idea of replacing the wired links with intra-vehicle personal area networks. Ultra-wideband (UWB) seems an appropriate candidate technology to meet the required data rates for interconnecting such devices. In particular, the multiband OFDM (MB-OFDM) is able to provide very high transfer rates (up to 480 MBps) over relatively short distances and low transmit power. In order to evaluate the performances of UWB systems within vehicles, a reliable channel model is needed. In this paper, a nomadic system where a base station placed in the center of the dashboard wants to communicate with fixed devices placed at the rear seat is investigated. A single-input single-output (SISO) channel model for intra-vehicular communication (IVC) systems is proposed, based on reverberation chamber theory. The model is based on measurements conducted in real traffic conditions, with a varying number of passengers in the car. Temporal variations of the wireless channels are also characterized and parametrized. The proposed model is validated by comparing model-independent statistics with the measurements.

Ultra wideband channel model for indoor environments

2003 ◽  
Vol 5 (4) ◽  
pp. 309-318 ◽  
Author(s):  
Alvaro Alvarez ◽  
Gustavo Valera ◽  
Manuel Lobeira ◽  
Rafael Pedro Torres ◽  
Jose Luis Garcia
Keyword(s):  
Channel Model ◽  
Ultra Wideband ◽  
Indoor Environments ◽  
Wideband Channel

Error Probability Analysis of Time-Hopping Biorthogonal Pulse Position Modulation UWB Systems with a RAKE Receiver over Indoor Multi-Path Fading Channels

2012 ◽  
Vol 433-440 ◽  
pp. 2011-2018
Author(s):  
Hao Zhang ◽  
Wei Shi ◽  
Ting Ting Lv ◽  
T. Aaron Gulliver
Keyword(s):  
Fading Channels ◽  
Error Probability ◽  
Channel Model ◽  
Rake Receiver ◽  
Low Complexity ◽  
Probability Analysis ◽  
Ultra Wideband ◽  
Pulse Position Modulation ◽  
Probability Of Error ◽  
Time Hopping

This paper presents the error probability analysis of Time-Hopping Biorthogonal Pulse Position Modulation (TH-BPPM) ultra-wideband (UWB) systems with a RAKE receiver over indoor multi-path fading channels. UWB signals suffer from severe multi-path interference when employed in an indoor fading environment. A RAKE receiver can be used to improve the performance of UWB systems. TH-BPPM has attracted much attention in recent years due to its many advantages, such as low probability of error and low complexity. In this paper, the IEEE 802.15.3a indoor channel model is employed to analyze the performance of TH-BPPM UWB systems with different RAKE receivers. The bit error rate (BER) of ARake, PRake, and SRake TH-BPPM UWB systems is derived. The results indicate that ARake has the best performance, SRake is better than PRake when the number of fingers is same.

A Novel Wireless Location Algorithm Based on High Probability Measurements

2012 ◽  
Vol 433-440 ◽  
pp. 2656-2662
Author(s):  
Xue Rong Cui ◽  
Li Zhang ◽  
Hao Zhang ◽  
T. Aaron Gulliver
Keyword(s):  
High Probability ◽  
Channel Model ◽  
Three Dimensional ◽  
Mean Value ◽  
Ultra Wideband ◽  
Line Of Sight ◽  
Time Of Arrival ◽  
Wireless Location ◽  
Location Algorithm ◽  
Improved Accuracy

This paper presents a novel location algorithm for Ultra-Wideband (UWB) wireless communication based on Time Of Arrival (TOA) measurements. The traditional algorithm and mean value algorithm are compared with the proposed high probability algorithm in a three-dimensional (3D) indoor environment. The IEEE802.15.4a channel model is considered with Line-of-Sight (LOS) and Non-Line-Of-Sight (NLOS) propagation conditions, models CM1 and CM2, respectively. Performance results are presented which verify that the proposed algorithm can provide improved accuracy and robustness compared to other algorithms, particularly in poor channel environments.

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