ECDGP: extended cluster‐based data gathering protocol for vehicular networks

Abstract

An important application in wireless networks is data collection. It aims to gather and deliver specific data for concerned authorities. Many researchers invest in vehicular ad hoc networks for that purpose to acquire data from different sources on the roads as from its vicinity. A vehicle is considered as a mobile data collector, it gathers real‐time or delay‐tolerant data such as road traffic, environmental information, and event advertisements. In a previous work, we have proposed a novel clustered data gathering protocol (CDGP) for vehicular ad hoc network, which improves the collection performance by implementing a new space division multiple access technique called dynamic space division multiple access and a retransmission mechanism in case of errors. However, CDGP supports only delay‐tolerant data as it does not use any aggregation technique. In this paper, we propose an enhancement of this protocol by extending it to support: (i) both real‐time and delay‐tolerant applications; (ii) multiple types of data; and (iii) aggregation of collected data prior to sending them to the initiator. We present the plausible analytical complexity of the extended CDGP, as we illustrate the superiority of its performance throughout the results obtained from simulation experiments, using a Freeway mobility model. Copyright © 2015 John Wiley & Sons, Ltd.

Caching and forwarding assistance for vehicular information services with mobile requesters

“…The Extended Clustered Data Gathering Protocol (ECDGP) for vehicular networks [17] handles the complete data gathering process through involved techniques for process initiation and data collection, aggregation, and delivery. Also, it manages the medium access control through a reliable dynamic time division multiple access (RD-TDMA) technique.…”

Towards efficient data collection mechanisms in the vehicular ad hoc networks

“…61 Therefore, the developed protocols for data collection in the VANET should be able to provide low latency, high throughput performance, and reliability. 64 • Data collection and aggregation: In this level, all informed vehicles must collect the designated data. 63 Typically, the following levels are included in the data collection process in the VANET 11 : • Collection process initiation: The initiator of the collection process, which can be based on vehicle or RSU, must specify all input parameters for the data collection method such as the data type and collection area.…”

“…63 Typically, the following levels are included in the data collection process in the VANET 11 : • Collection process initiation: The initiator of the collection process, which can be based on vehicle or RSU, must specify all input parameters for the data collection method such as the data type and collection area. 64 • Data collection and aggregation: In this level, all informed vehicles must collect the designated data. The data collected by each vehicle before being sent to the initiator node can be aggregated with data collected by other vehicles.…”

“…65 • Data delivery: After the data collection level, the collector vehicles must deliver the specified collected data to the initiator node. 64…”

“…Finally, Brik et al 64 have suggested a clustered data collection scheme for VANET. Collection initiation, collection and aggregation, and information delivery to RSU are three stages of this method.…”