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Improved scheme for the problem of anti-fading of DSRC systems in IEEE 802.11p environments

Content Provider	IET Digital Library
Author	Ma, Tian Ming
Abstract	Vehicular communication for accident avoidance is an important application defined in the IEEE 802.11p. One of the challenges of vehicular communications in the current IEEE 802.11p standard is the complex and rapidly changing channel conditions. In this study, the author focusses on the vehicle-to-vehicle channels under the IEEE 802.11p standard and point out that there exist two different kinds of fading. Then, a new dedicated short range communication (DSRC) system with two improved methods is proposed for the weak performance of anti-fading of current system in IEEE 802.11p environments. The author adopts matrix spectral transformation method to replace least squares algorithm in spectral temporal averaging (STA) scheme proposed by Fernandez to further mitigate the negative effects of DSRC system caused by fast time-varying fading. Meanwhile, the author also proposes a spectral keying method to further enhance its ability of anti-frequency-selective fading. The final simulation results show that compared with STA and other methods, the improved scheme shows better performance on mean square error, bit error rate and packet error rate, which is promising for practical applications.
Starting Page	632
Ending Page	640
Page Count	9
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 6, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0613
Journal	IET Communications
Publisher Date	2016-04-14
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Accident Avoidance Antifading Problem Antifrequency Selective Fading Bit Error Rate Channel Condition Computer Communication Dedicated Short Range Communication DSRC System Error Statistics Fading Channel Fast Time-varying Fading IEEE 802.11p Environments Interpolation And Function Approximation Least Squares Algorithm Least Squares Approximation Local Area Network Mean Square Error Method Numerical Analysis Packet Error Rate Radio Link And Equipment Spectral Keying Method Spectral Temporal Averaging STA Statistics Vehicle-to-vehicle Channel Vehicular Communication Wireless Channel Wireless LAN
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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