ABSTRACT
An integration of Vehicular Ad-hoc Network (VANET) and cellular network, e.g. LTE
is a promising architecture for future machine-to-machine applications. This
integration helps vehicles to have steady internet connection through cellular network
and at same time can communicate with each other. However, dead spot areas and
unsuccessful handover processes, due to vehicles high speed, can disturb the
implementation of this kind of architecture. In this thesis, a Simplified Cluster –
Based Gateway Selection (SCGS) Scheme for Multi-hop Vehicular networks is
proposed. The main aim of this research is to enhance the integration between
VANET and cellular network and to extend coverage in areas where there is no
coverage. An enhanced version of Hybrid Wireless Mesh Protocol (E-HWMP) is
proposed where it is a combination of IEEE802.11p and IEEE802.11s for multi-hop
vehicular networks. E-HWMP provide a tradeoff between reactive and proactive
gateway discovery solutions " consists of adjusting the scope for the gateway
advertisement". The basic idea behind hybrid routing protocol is to use proactive
routing mechanism inside the coverage zone at a certain time while utilizing a
reactive routing mechanism on demand. An integrated simulation environment
combined of VanetMobiSim and NS2 is used to simulate and evaluate the proposed
scheme. An analytical model is also derived which is implemented by Matlab to
optimize the proposed scheme. Simulation results show that, E-HWMP protocol
performed better than Ad-hoc on demand Distance Vector (AODV) routing protocol
and Hybrid Wireless Mesh Protocol (HWMP) routing protocol. Furthermore, SCGS
through E-HWMP is compared with other cluster-based gateway selection algorithms
i.e. CMGM and SGS that used in other related works; the result shows that SCGS
scheme through E-HWMP protocol outperform the other cluster- based gateway
selection schemes in terms of connection delay, control packet overhead, packet
delivery ratio and overall throughput. Finally, results from analytical model are
compared to simulation results to validate the approach of this thesis. Both analytical
and simulation results agreed that: connectivity probability increases as average vehicle density increases and increased average vehicle speed degrades connectivity.
Eltahir, A (2021). A simplified Cluster – Based Gateway Selection Scheme for Multihop Vehicular Networks. Afribary. Retrieved from https://tracking.afribary.com/works/a-simplified-cluster-based-gateway-selection-scheme-for-multihop-vehicular-networks
Eltahir, Amal "A simplified Cluster – Based Gateway Selection Scheme for Multihop Vehicular Networks" Afribary. Afribary, 20 May. 2021, https://tracking.afribary.com/works/a-simplified-cluster-based-gateway-selection-scheme-for-multihop-vehicular-networks. Accessed 10 Nov. 2024.
Eltahir, Amal . "A simplified Cluster – Based Gateway Selection Scheme for Multihop Vehicular Networks". Afribary, Afribary, 20 May. 2021. Web. 10 Nov. 2024. < https://tracking.afribary.com/works/a-simplified-cluster-based-gateway-selection-scheme-for-multihop-vehicular-networks >.
Eltahir, Amal . "A simplified Cluster – Based Gateway Selection Scheme for Multihop Vehicular Networks" Afribary (2021). Accessed November 10, 2024. https://tracking.afribary.com/works/a-simplified-cluster-based-gateway-selection-scheme-for-multihop-vehicular-networks