The Study of Wireless Network Resources while Transmitting Heterogeneous Traffic

Abstract

Today's network traffic can be broadly classified into two categories: real-time traffic and elastic one. Real-time traffic is delay sensitive and is to be conveyed at a fixed bit rate. This type of traffic comprises voice, videoconferencing of different quality, etc. Elastic traffic is generally used for data transmission; therefore its transfer rate can vary in proportion to the residual cell capacity. It might happen, for instance, while downloading files, transmitting machine-to-machine data for the Internet of things, etc. The process of conveying elastic traffic allows increasing the efficiency of network resources considerably. According to teletraffic theory, requests for file transmission at the expense of spontaneous resource seizing force requests for traffic transmission of real-time services out of processing. This is essential for mobile (wireless) communications networks of any standard where subscribers use devices with intelligent modems that increase the elastic traffic portion significantly. Simultaneous transmission of heterogeneous traffic over a network obviously needs some control tools that will ensure the desired quality of service (QoS) for arriving requests. Thereby when the transmission rate increases or decreases, the mean value of residual time for data file transfer decreases or increases proportionally. One of the ways to control the cellular network throughput is to set limits to the speed of elastic data traffic transmission. The given study considers the problem of planning the network capacity and acceptable amount of traffic transmitted through the network cell while transferring it with the desired QoS.

Keywords

• elastic traffic
• real-time traffic
• data transfer
• network resource
• traffic servicing model