Title :
A Multi Channel Synchronization Approach in Dual Radio Vehicular Ad-Hoc Networks
Author :
Lasowski, Robert ; Gschwandtner, Florian ; Scheuermann, Constantin ; Duchon, Markus
Author_Institution :
Mobile & Distrib. Syst. Group, Univ. of Munich, Munich, Germany
Abstract :
Simultaneous usage of multiple channels in vehicular ad-hoc networks (VANETS) has strong impacts on the communication range of the adjacent channel caused by adjacent channel interference (ACI). This is a big issue in dual radio environments where the distance between the interfering and receiving radio is low. To enhance the communication range on the service channel 2 (SCH2) while using the adjacent control channel (CCH) simultaneously we introduce 3CSMA/CA. It allows to synchronize the transmissions on SCH2 regarding a defined radius of relevance by tracking signal strength of ongoing transmissions on CCH. We present the advantages of 3CSMA/CA by varying node density based on simulations and show the benefit in case no synchronization is applied.
Keywords :
adjacent channel interference; carrier sense multiple access; synchronisation; vehicular ad hoc networks; 3CSMA/CA; adjacent channel interference; adjacent control channel; dual radio vehicular ad hoc networks; multichannel synchronization; service channel; Delay; Interference; Multiaccess communication; Receivers; Solid modeling; Synchronization; Vehicles;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956640
