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.
Apply chaos in the digital fountain codes, which is in the transport and application layer of communication network. An encoding and decoding algorithm of LT codes based on Kent chaotic map is proposed. In the encoding process, we use the randomness and ergodic properties of chaotic sequence to determine degree value and neighbors of each encoding packet. The performance of LT codes based on chaos...
Fountain codes provide an efficient way to transfer information over erasure channels like Internet. LT codes are the first codes fully realizing the digital fountain concept. The key to make LT codes work well is the degree distribution used in the encoding procedure, which is sampled to determine the degree of each encoding symbol. This paper propose a revised robust soliton distribution which has...
Real-time interactive on documents can enhance effectiveness of learning in modern education. A pen capable of locating on a screen is one significant choice. Some products have been developed and the nib of pen is used as the emitter. However, the pen might fail to be located while our body or hand would block the light wherever the photo detector is. In this paper, we have proposed a scheme to solve...
Fountain codes provide an efficient and reliable way to transfer information over erasure channels like Internet. LT codes are the first practical realization of Fountain codes. Implementation of fountain codes usually realizes the randomness in the encoding through pseudo-random number generator. We apply chaotic sequence in the implementation of LT codes to determine the degree and neighbour(s)...
Fountain codes provide an efficient way to transfer information over erasure channels like Internet. LT codes are the first codes fully realizing the digital fountain concept. They are asymptotically optimal rateless erasure codes with highly efficient encoding and decoding algorithms. In theory, for each encoding symbol of LT codes, the neighours used to generate that encoding symbol are chosen uniformly...
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.