Cross Layer Aware Optimization of TCP Using Hybrid Omni and Directional Antenna Reliable for VANET
The motivation behind Intelligent Transportation System (ITS) application added to the profoundly unique nature of the Vehicular Adhoc Network (VANET) to improve the vital hassle of passenger safety and road traffic efficiency. Transfer Control Protocol (TCP) performs slow-start during the connection initiation, after retransmission timeout, and packet loss. Since the path loss frequently occurred in the high dynamic adhoc network prone to frequent timeout. The connection spends most of time in the slow-start phase, which lead to the under utilization of network resources and increase the delay in the network. Proposed work implements the lower layer of physical, MAC and network layer without modifying TCP operation to improve the performance of TCP in an adhoc wireless network, which would empower a seamless operation on the Internet. The proposed system Cross-Layer Aware Optimization of TCP (CLAO-TCP) using a hybrid Omni and Directional antenna, that combines the two models of Total Signal Attenuation in Line-Of-Sight (TSA-LOS) detect the path loss earlier to prevent the path failure and Distributed TDMA using Directional Antenna (DTDMA-DA) for slot allocation without conflict to enhance the QoS in high dynamic nature of the vehicular adhoc network.
KeywordsLayered architecture TCP IEEE 802.11p CLAO-TCP TSA-LOS TDMA-DA
I heartily thank our research guide, Dr. S. Shankar, Professor and HoD of Computer science and Engineering department for his guidance and suggestions during this research work.
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