Results 61 to 70 of about 281,121 (333)

Threshold-based generic scheme for encrypted and tunneled Voice Flows Detection over IP Networks

open access: yesJournal of King Saud University: Computer and Information Sciences, 2015
VoIP usage is rapidly growing due to its cost effectiveness, dramatic functionality over the traditional telephone network and its compatibility with public switched telephone network (PSTN). In some countries, like Pakistan, the commercial usage of VoIP
M. Mazhar U. Rathore
doaj   +1 more source

Biological and Biologically Inspired Functional Nanostructures: Insights into Structural, Optical, Thermal, and Sensing Applications

open access: yesAdvanced Materials, EarlyView.
Biological and biologically‐inspired functional nanostructures with structural, thermal, optical, and sensing applications are reviewed. The role of nanoscale features in biological materials on performance is described, and their blueprints are used for bio‐inspired nanomaterials, synthesized using advanced techniques (i.e., photolithography, bio ...
Chao Hsuan (Joseph) Sung   +15 more
wiley   +1 more source

FractalNet-based key generation for authentication in Voice over IP using Blockchain

open access: yesAin Shams Engineering Journal
Voice over Internet Protocol (VoIP) has seen significant growth since the proliferation of the Internet, primarily due to its low-cost structure and simplicity in deployment.
Vajjala Sreenivasulu   +1 more
doaj   +1 more source

Voice Quality Estimation in Wireless Networks

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2015
This article deals with the impact of Wireless (Wi-Fi) networks on the perceived quality of voice services. The Quality of Service (QoS) metrics must be monitored in the computer network during the voice data transmission to ensure proper voice service ...
Petr Zach, Martin Pokorný, Jiří Balej
doaj   +1 more source

Comparative Analysis of VPN Protocols at Layer 2 Focusing on Voice Over Internet Protocol

open access: yesIEEE Access, 2023
Voice over Internet Protocols (VoIP) is an IP-based communication technology or commonly known as Internet Protocols (IP). In which, IP is currently widely used for mobile communication activities.
Setiyo Budiyanto, Dadang Gunawan
doaj   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

open access: yesAdvanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang   +3 more
wiley   +1 more source

Global experimental verification of Docker-based secured mVoIP to protect against eavesdropping and DoS attacks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
The cloud-computing paradigm has been driving the cloud-leveraged refactoring of existing information and communications technology services, including voice over IP (VoIP). In this paper, we design a prototype secure mobile VoIP (mVoIP) service with the
ByungRae Cha   +3 more
doaj   +1 more source

Size Effect on Photothermal Heating Ability of Gold Bipyramids

open access: yesAdvanced Optical Materials, EarlyView.
Gold bipyramids with identical spectral characteristics exhibits opposite volume‐dependent photo‐thermal heating at single‐particle versus collective scales. The thermal energy can be used to generate mechanical work by powering Stirling engine. Abstract Gold nanoparticles (AuNPs) exhibit photothermal properties that are fundamental to biomedical and ...
Aadesh Mohan Naik   +7 more
wiley   +1 more source

End-to-End Network Requirements for 3GPP Voice Over Wi-Fi (VoWiFi) Service

open access: yesIEEE Access
4G mobile networks were the first to allow packet-switched voice calls, supported by an optional IP-based infrastructure called IP Multimedia Subsystem (IMS).
M. Luglio, C. Roseti, F. Zampognaro
doaj   +1 more source

Detecting and Mitigating Denial-of-Service Attacks on Voice over IP Networks [PDF]

open access: yes, 2008
Voice over IP (VoIP) is more susceptible to Denial of Service attacks than traditional data traffic, due to the former's low tolerance to delay and jitter.
Anwar, Zahid   +5 more
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