A Green Energy Efficient Transmission Control /Internet Protocol (TCP/IP)

چکیده مقاله

Today, many networks have spread out around the world. The more these networks grow, the more their energy consumption comes to attention. Many efforts have been made during recent years to decrease this energy consumption which were mainly focused on utilizing low-power devices. Green algorithms are recently proposed to reduce energy consumption by modifying the structure of many algorithms employed in the network and its protocols. In this paper, a new green reliability algorithm is proposed for Transmission Control Protocol/Internet Protocol (TCP/IP protocol). The proposed algorithm does not require extensive changes in the TCP/IP protocol or relevant hardware. It is based on transferring less number of packets in the network by using the advantage of differences between TCP and User Datagram Protocol (UDP). TCP and User Datagram Protocol (UDP) are different in nature as the number of total packets in UDP is half that of TCP. As a result, the number of total packets in UDP is half that of TCP. The proposed method is built around the fact that the loss of some of the packets in applications, such as voice and online video, does not result in severe degradation of the end results. Therefore, the UDP protocol can substitute TCP in such situations. The criterion to switch between the two is the minimum acceptable Quality of Service (QoS) of the overall network. In other words, as long as QoS requirements are met, the UDP protocol will be used. The switching process between UDP and TCP is a dynamic one, optimized by estimation of network noise in the time period.

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