Improving the Structural Reliability of Mobile Radio Networks Based on the Ad-Hoc Algorithms

The paper is devoted the description of specific features of Ad-Hoc technology implementation. The possibility of significant increase of the radio communications stability without introducing structural redundancy into the system is shown. For this, it is proposed to use mobile stations deployed on the terrain in non-stationary circumstances and operating in the retransmission mode. The use of repeaters is considered as a tool to improve the structural reliability of Ad-Hoc network, as well as a tool for reducing intra-system interference. The feasibility assessment of using automatic transmitter’s power adjustment for radio stations within a decentralized mobile Ad-Hoc network is performed. The measure of intra-system interference level reduction is estimated at the receiving point based on the assumption of subscribers’ random location on the terrain. It is concluded that the combination of automatic transmitter power adjustment for subscriber stations using an auxiliary repeater-station can improve the electromagnetic compatibility conditions of radio equipment in communication systems with mobile objects. This measure is an effective way to economical use of the radio spectrum allocated to communication systems with moving objects. It is important to emphasize that the operation conditions of many mobile radio communications systems do not always allow us to achieve improvements in the characteristics of stability and communication quality by generally accepted organizational and technical means. Therefore, the search for effective ways to improve radio systems operating in adverse conditions remains as an interesting and important task. In this article, the attempt has been made to show new possibilities that retransmission of signals gives precisely in such mobile systems taking into account their features.