MoNET: media over net gateway processor for next-generation network

Hammam Elabd; Rangarajan Sundar; John Dedes

doi:10.1117/12.451063

20 December 2001 MoNET: media over net gateway processor for next-generation network

Hammam Elabd, Rangarajan Sundar, John Dedes

Proceedings Volume 4674, Media Processors 2002; (2001) https://doi.org/10.1117/12.451063
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

MoNET^TM (Media over Net) SX000 product family is designed using a scalable voice, video and packet-processing platform to address applications with channel densities from few voice channels to four OC3 per card. This platform is developed for bridging public circuit-switched network to the next generation packet telephony and data network. The platform consists of a DSP farm, RISC processors and interface modules. DSP farm is required to execute voice compression, image compression and line echo cancellation algorithms for large number of voice, video, fax, and modem or data channels. RISC CPUs are used for performing various packetizations based on RTP, UDP/IP and ATM encapsulations. In addition, RISC CPUs also participate in the DSP farm load management and communication with the host and other MoP devices. The MoNET^TM S1000 communications device is designed for voice processing and for bridging TDM to ATM and IP packet networks. The S1000 consists of the DSP farm based on Carmel DSP core and 32-bit RISC CPU, along with Ethernet, Utopia, PCI, and TDM interfaces. In this paper, we will describe the VoIP infrastructure, building blocks of the S500, S1000 and S3000 devices, algorithms executed on these device and associated channel densities, detailed DSP architecture, memory architecture, data flow and scheduling.

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Hammam Elabd, Rangarajan Sundar, and John Dedes "MoNET: media over net gateway processor for next-generation network", Proc. SPIE 4674, Media Processors 2002, (20 December 2001); https://doi.org/10.1117/12.451063

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KEYWORDS

Digital signal processing

Video

Switches

Time division multiplexing

Control systems

Phase modulation

Information operations

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