Vehicular Swarm Network (VSN) technology enables real time inter-vehicular communications for broadcasting all kinds of data collection, including emergency video with high data rate. A challenge in VSN broadcasting is to achieve a high throughput rate while at the same time assure the delivery of video packet flows to all the vehicles traveling over a highway segment from the accident vehicle. This paper analyzed the throughput- distance relationship model of 802.11p standard in multi-relay VSN with Vehicle Backbone Sub-Network (VBSN). Also, this paper proposed Enhanced Throughput Capacity (ETC) scheme; using GPS, vehicles that positioned close to those throughput-optimal positions are elected as VSBN relays. The aim of this paper is two-fold: a. We analyze the property of optimal position for enhancing the broadcast throughput. b. We demonstrate the performance offered by this ETC scheme; it excludes additional VBSN rebuilt process, and has robustness of high throughput in different traffic density and vehicle speed.
Enhanced Throughput Capacity Scheme for Broadcasting Emergency Video in Vehicle Swarm
01.09.2015
458620 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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