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The next generation technology of Voice over Internet Protocol (VoIP) allows voice to be delivered over the Internet Protocol based networks. The integration of VoIP and Wireless Local Area Network (WLAN) has become popular. However, WLAN architecture was primarily designed to carry data and not for real-time applications, such as VoIP. Hence, there is a need to enhance the quality of VoIP transmission...
Voice over Internet Protocol (VoIP) is a technology that transports voice data packets across packet switched networks using the Internet Protocol (IP). The key research is to develop a new method for QoS determination and dynamic control of the network that is applicable to VoIP industry. The paper investigates the effects of packet loss, delay and jitter on speech quality for VoIP. It extends the...
Modern Line of Sight (LOS) radio technologies including software defined radios are the fundamental building blocks of the future game-changing High Speed and High Capacity Internet Protocol based Airborne Networks (HSCAN) for the U.S. military. The Air Force currently has multiple ongoing initiatives to develop this future HSCAN. The chief capability amongst many others that the Air Force envisions...
End-user acceptance criteria of live-stream based, interactive applications are different from traditional B2B or B2C applications. For example, if users sense disruptions in audio or video stream quality, they may quickly form a negative opinion. The Quality of Experience (QoE) in such live-stream applications is, thus, based on perception, and is open to subjective interpretations. QoE can be affected...
Voice over Internet Protocol (VoIP) services are susceptible to Internet Protocol (IP) network burstiness causing packets drop and momentary gap in the call. The main objective of this paper is to study the effect of various voice codec schemes on the VoIP Quality of Service (QoS). Popular voice codecs such as G.711, G.729A Conjugate-Structure Algebraic-Code-Excited Linear-Prediction (CS-ACELP), G...
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