Accession Number:

ADA622411

Title:

High-Bandwidth Tactical-Network Data Analysis in a High-Performance-Computing (HPC) Environment: Voice Call Analysis

Descriptive Note:

Final rept. 1 Jul 2012-31 Dec 2014

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE

Report Date:

2015-09-01

Pagination or Media Count:

32.0

Abstract:

Analyzing network traffic for Voice over Internet Protocol VoIP calls for large test events, complex correlation, and aggregation of packet flows--between multiple nodes in a large network typically 50 or more instrumented nodes, across multiple application flow protocols Transmission Control Protocol call signaling and Real-time Transport Protocol audio data, and over significant lengths of time multiple hours--while also accommodating incomplete information in the captured packet streams. This report discusses the methods by which the US Army Test and Evaluation Commands Aberdeen Test Center and the US Army Research Laboratorys Computational and Information Sciences Directorate collaborated to utilize high-performance-computing HPC resources to extract VoIP call information and metrics from very large volumes of network traffic recorded in a tactical environment. The extracted voice call metadata and associated metrics were stored as part of the command, control, communications, and computers Data Model, which was delivered to the analysis community for evaluation. In addition, the HPC processing also extracts actual voice conversations as audio files from the traffic flows for analysts to review.

Subject Categories:

  • Computer Programming and Software
  • Computer Systems
  • Radio Communications
  • Voice Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE