Abstract: The wide spread of networks based on Internet Protocol (IP), gave the opportunity for using the Internet for voice transmission , through Voice over IP (VoIP) technology, over traditional public telephone networks (PSTN). The Session Initiation Protocol is a signaling protocol , used to control multimedia sessions such as voice calls or video calls in IP networks. The use of this protocol in mobile devices , where resources management is very important ,is giving the stimulus for the creation of special hardware that offloads the CPU of demanding controls needed to create a session .
As part of this thesis ,a system implemented on FPGA, which simulates a SIP user, and has the ability to receive, process and respond to messages to create a session , is presented.
The following chapters present the structure of the protocol and the characteristics of the implemented system . Originally presented the basic principles of the Protocol and its structural elements . Thereafter the structure of a SIP message is analyzed , and the reasons that make storing a demanding work for the CPU , are explained. Then the basic process of creating a session is analyzed , using an example . The next part is devoted to a detailed description of the implemented system and the process of verifying the proper operation. Finally are presented the results and conclusions of the work .
Publication Year: 2014
Publication Date: 2014-03-18
Language: en
Type: dissertation
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