Relational Analysis based Concurrent Multipath Transfer over Heterogeneous Vehicular Networks
نویسندگان
چکیده
In recent years, the growing interest in the Intelligent Transportation Systems (ITS) has resulted in variety of peerreviewed publications. Significant results in this area have enabled many civilian and industry applications. As more and more vehicles are equipped with multiple network interfaces, how to efficient utilize the coexistence of Radio Access Technologies (RAT) such as WiFi, UMTS and WiMAX to serve a best Concurrent Multipath Transfer (CMT) service is still a challenge in ITS. In this paper, we propose GRA-CMT, a novel Grey Relational Analysis (GRA) based Concurrent Multipath Transfer, extension for Stream Control Transport Protocol (SCTP). Depending on the advantages of GRA, a GRA-based Data Distribution algorithm is proposed in GRA-CMT to calculate the Grey Relational Coefficient (GRC) value of all candidate paths and offer a more efficient data scheduling algorithm, a further proposed GRA-based CMT Retransmission algorithm devotes to select destination for efficient retransmission. Moreover, the GRA-CMT provides a GRA-based CMT Path Selection scheme to manage candidate paths. Sufficient simulation results obtained by a close realistic simulation topology show how GRA-CMT outperforms existing CMT in heterogeneous SCTP-based vehicular networks.
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