Sökning: "Voice over IP VoIP"

Visar resultat 11 - 15 av 66 uppsatser innehållade orden Voice over IP VoIP.

1. 11. Estimating Internet-scale Quality of Service Parameters for VoIP

   Master-uppsats, Linköpings universitet/Programvara och system

   Författare :Markus Niemelä; [2016]
   Nyckelord :Voice over IP VoIP ; Quality of Service QoS ; cost estimation; QoS-driven routing;

   Sammanfattning : With the rising popularity of Voice over IP (VoIP) services, understanding the effects of a global network on Quality of Service is critical for the providers of VoIP applications. This thesis builds on a model that analyzes the round trip time, packet delay jitter, and packet loss between endpoints on an Autonomous System (AS) level, extending it by mapping AS pairs onto an Internet topology. LÄS MER

3. 12. Robust Echo-Cancellation for Simple VoIP-Applications in Embedded Systems

   Master-uppsats, Linköpings universitet/Kommunikationssystem

   Författare :Anton Eriksson; [2015]
   Nyckelord :VoIP; Adaptive Filtering; Signal Processing;

   Sammanfattning : Voice over IP (VoIP) is the group of techniques for delivering voice communications over Internet Protocol (IP) networks. It has mainly served as the possible substitution for regular PSTN over the last decades, but has recently gained an increased interest in various areas such as alarm applications and customer service. LÄS MER

4. 13. Design of IP Multimedia Subsystem for Educational Purposes

   Master-uppsats, KTH/Radio Systems Laboratory (RS Lab)

   Författare :Mikael Rudholm; [2015]
   Nyckelord :IMS; Next generation networking; Internet telephony; SIP application; service creation; virtual machines; IMS; nästa generations nätverk; Internet-telefoni; SIP applikationer; utveckla tjänster; virtuella maskiner;

   Sammanfattning : Internet Protocol multimedia subsystem (IMS) is an architecture for services such as voice over Internet Protocol (VoIP) in IP based communication systems. IMS is standardized by the 3GPP standardization forum, and was first released in 2002. Since then IMS has not had the wide adoption by operators as first anticipated. LÄS MER

5. 14. The Impact of Context on Web QoE

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

   Författare :Anjum Javed; Muhammad Nauman Khan; [2013]
   Nyckelord :Web QoE; User Consciousness; Web Performance; Context of Use ;

   Sammanfattning : The Internet, thirty-three year ago, fighting for recognition into the mainstream market, is being emerged as a single biggest application in the history of last century. Today, vast majority of people use Internet services, specifically, web which is a single most key driver of internet offering services ranging from social networking, VoIP (voice over IP), online gaming, entertainment and other professional services. LÄS MER

7. 15. The Intelligent Use of Multiple Interfaces : Using multiplexing to reduce the overhead for small packets

   Master-uppsats, KTH/Radio Systems Laboratory (RS Lab)

   Författare :Niyaz Adigozalov; [2013]
   Nyckelord :Long-Term Evolution; LTE; multiplexing; VoIP; overhead; RTP; VPN; WLAN; Long-Term Evolution; LTE; multiplexa; VoIP; ooptimerad; RTP; VPN; WLAN;

   Sammanfattning : Long-Term Evolution (LTE) is the latest development in wide area cellular mobile network technology. In contrast with the earlier generations of circuit-switched mobile networks, LTE is all-IP packet-switched network. Both voice and data are sent inside IP packets. Voice over IP (VoIP) is used to provide voice service to LTE users. LÄS MER