METHOD OF DATA TRANSMISSION OPTIMIZATION TIME IN WIRELESS DATA TRANSMISSION NETWORKS

Abstract

A method of preventing wireless network congestion has been analyzed to reduce data transmission time in conditions of limited bandwidth of wireless communication channels. The method implemented in the EIGRP protocol is taken as a basis for the construction of wireless networks with rational control of the information space. To increase efficiency, the load of the router's buffer memory was reduced, which reduced the amount of service network information in the router's buffer memory, and used the method of reducing data transmission time in wireless data networks by rationally routing service information. Recently, there has been a rapid increase in the use of wireless data networks, which allow the implementation of wireless access to information resources, wireless video telephony and IP-telephony and wireless local area networks.

There is an increase in the number of subscribers, resources, quantity and quality of network services. The trend towards subscriber mobility, as well as the emergence of mobile devices that are of considerable interest in ensuring efficient transmission of heterogeneous traffic via wireless networks. The problem of reducing data transmission time and increasing the bandwidth of such networks is becoming increasingly important.

Wireless data networks (Wireless Networks) are characterized by relatively low bandwidth, a large number of errors and increased delays in data transmission, as well as a number of other factors that lead to a decrease in their bandwidth. Quite often, wireless networks are combined with wired ones, which leads to additional problems when they work together.

The bandwidth of wireless networks is, on average, 4-6 times lower than the bandwidth of traditional wired networks; the process of data transmission in wireless networks is significantly affected by the increased level of channel errors caused by both the movement of the node and the physical state of the transmission medium. Also, a significant amount of current research is devoted to increasing the bandwidth of wireless and mobile networks.

In modern networks, a significant amount of traffic at the transport level is transmitted using the TCP protocol. However, the TCP protocol has different features when working in wired and wireless networks, because in the process of its creation tasks of adaptation to networks with different methods of data transmission were not set. A wireless network requires a different approach to handling network congestion errors and physical and channel layer errors. Thus, given the above facts, improving the efficiency of the TCP protocol requires modifications. It may also be interesting to balance the entire TCP / IP protocol stack by making individual changes at its levels to optimize overall bandwidth.