Results 31 to 40 of about 410,715 (365)
Multicast broadcast services support in OFDMA-based WiMAX systems [Advances in mobile multimedia] [PDF]
, 2007 Multimedia stream service provided by broadband wireless networks has emerged as an important technology and has attracted much attention. An all-IP network architecture with reliable high-throughput air interface makes orthogonal frequency division ...
Chen, HH, Jiang, T, Ni, Q, Xiang, W
core +1 more source
IEEE Open Journal of the Computer Society, 2020 In this paper, we introduce SPQER (pronounced speaker), a novel approach to evaluate the quality of experience for real-time Voice over IP (VoIP) communication in mobile and lossy networks.
Bertram Schuetz, Nils Aschenbruck
doaj +1 more source
HIGH QUALITY LOW BITRATE VOICE CODEC FOR TRANSMISSION OVER ADVANCED LTE
Iraqi Journal of Information & Communication Technology, 2021 In mobile communication systems bit-rate reductions while maintaining an acceptable voice quality are necessary to achieve efficiency in channel bandwidth utilization and users satisfaction.
Noor N. Edan, Nasser N. Khamiss
doaj +1 more source
Investigation of Mobile IPv6 and SIP integrated architectures for IMS and VoIP applications [PDF]
, 2008 Mobile IPv6 and SIP are protocols designed to support different types of mobility. Mobile IPv6 has been used to support mobility in IP networks and SIP has been used for voice over IP applications.
Lohi, M. +5 more
core +1 more source
LTE enhancements for Public Safety and Security communications to support Group Multimedia Communications [PDF]
, 2015 Currently Public Safety and Security communication systems rely on reliable and secure Professional Mobile Radio (PMR) Networks that are mainly devoted to provide voice services.
Carlà, Lorenzo +4 more
core +2 more sources
A delay-aware packet prioritisation mechanism for voice over IP in Wireless Mesh Networks
IEEE Wireless Communications and Networking Conference, 2016 This work proposes a novel Delay-aware Packet Prioritisation Mechanism (DPPM) to uniformly distribute the Quality of Service (QoS) level across all Voice Over IP (VoIP) calls in a Wireless Mesh Network (WMN).
C. Olariu +3 more
semanticscholar +1 more source
Implementasi Sistem IP PBX menggunakan Briker
Jurnal Elkomika, 2013 ABSTRAK VoIP (Voice over Internet Protocol) adalah komunikasi suara jarak jauh yang digunakan melalui jaringan IP. Pada penelitian ini dirancang sistem IP PBX dengan menggunakan teknologi berbasis VoIP.
DWI ARYANTA +2 more
doaj +1 more source
QUALITY OF EXPERIENCE FOR VOICE OVER INTERNET PROTOCOL (VoIP)
Wasit Journal of Engineering Sciences, 2023 Today, the service of Voice over Internet Protocol or (VoIP) is one of the most used service around the globe in many fields, especially with video conferencing applications. Different applications and also many communications companies around the world
Asmaa Ali Jaish +1 more
doaj +1 more source
Covert Channels in SIP for VoIP signalling
, 2008 In this paper, we evaluate available steganographic techniques for SIP (Session Initiation Protocol) that can be used for creating covert channels during signaling phase of VoIP (Voice over IP) call.
B. Lampson +3 more
core +1 more source
MOBILTEL - Mobile Multimodal Telecommunications dialogue system based on VoIP telephony [PDF]
Journal of Electrical and Electronics Engineering, 2009 In this paper the project MobilTel ispresented. The communication itself is becoming amultimodal interactive process. The MobilTel projectprovides research and development activities inmultimodal interfaces area.
Anton Čižmár +4 more
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