The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
According to the present High Frequency (HF) Air-Ground Communications, interpolation algorithm is used to ascertain the distribution of every channel's SNR along time on the route. A new ALE scan list updating strategy that is based upon the order of SNR is achieved according to the distribution of SNR. Meanwhile, the evaluation standards of performance are given. This paper also constructs the theoretical...
With the methods of geometry, sites' structure of HF air-to-ground communications and the sites-setting methods are studied. It is intent on putting forward ways and means to allocate sites of HF air-to-ground communications efficiently. After proving the theory that coverage efficiency of circles with the same radius is higher than the coverage efficiency of circles with different radiuses, the optimal...
The analysis and verification of security protocols is an important field in the security of computer nowadays. Formal method has been advocated as an important means of improving the safety and reliability of software systems, especial those which are safety-critical. We propose a new simple trace semantics that can be used to analyse Cryptographic Protocols. Our technique support a protocol designer...
Formal method has been advocated as an important means of improving the safety and reliability of software systems, especial those which are safety-critical. We propose a new simple trace semantics that can be used to specify security properties. Our technique support a protocol designer to provide formal analysis of the security properties. We illustrate the utility of our technique by exposing two...
The time-hopping pulse position modulation (TH- PPM) is one of the most popular approaches for IR-UWB multiuser systems, and a lot of research efforts have been devoted on its performance analysis. In several latest literatures, a method of MAI modeling, as well as the numerical computation of the MAI characteristic function, had been carrid out to derive precision analytical bit error performance,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.