A Proposal for Next Generation ITS Wireless Communications System in EV Generation

2012 ◽  
Vol E95-A (1) ◽  
pp. 271-277 ◽  
Author(s):  
Kiyohito TOKUDA
Keyword(s):  
Wireless Communications ◽  
Next Generation ◽  
Communications System

Next-generation wireless communications concepts and technologies

2002 ◽  
Vol 40 (3) ◽  
pp. 108-116 ◽  
Author(s):  
R. Berezdivin ◽  
R. Breinig ◽  
R. Topp
Keyword(s):  
Wireless Communications ◽  
Next Generation

scholarly journals On the Implementation of a Dynamic Direction Modulation System with Vector Modulators

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Edith Annette Cabrera-Hernández ◽  
Josep Parron ◽  
Alan Tennant
Keyword(s):  
Wireless Communications ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Efficient Technique ◽  
Synthesis Methods ◽  
System Architectures ◽  
Flexible Framework ◽  
Communications System ◽  
Nonideal Behavior ◽  
Directional Modulation

Dynamic directional modulation (DDM) has already proven to be an efficient technique to achieve physical layer security in wireless communications. System architectures based on vector modulators provide a flexible framework to implement synthesis methods that allow us to obtain increased security and/or independent multichannel transmissions. However, the implementation of DDM with vector modulators requires an accurate calibration (amplitude and phase) of every component in the RF path. In this contribution, we study the sensitivity of the response of a DDM system based on commercial vector modulators showing how to correct the nonideal behavior of all the components thanks to the flexibility provided by the vector modulator.

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