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As modern high performance computing systems have various ICs associated together, one of the most appreciated architecture is direct path passing through the intermediate chips. Inter-chip and intra-chip communication are linked together in this architecture. Therefore to remove crosstalk induced noise and improve signal integrity, a novel CAC and corresponding CODEC which can be applied for both...
Performance evaluation of VoIP is done by considering the network parameters jitter, packet end to end delay, and packet delay variation. Integration of Quality of Service (QoS) with the Internet Protocol (IP) and Multiprotocol Label Switching (MPLS)networks should enhance the performance of the network. Various scheduling algorithms can be used for implementing QoS on a network. In this paper, the...
The Voice over IP (VoIP) service demands high priority over other services and applications. Some constrains are associated with this real-time service, such as delay and throughput which need to be addressed before delivering to the customer. The mobility in IP networks is a demand that facilitates IP applications and services, especially in wireless networks. This paper demonstrates the performance...
Long Term Evolution (LTE) is a 3GPP standard for wireless transmission systems. It is also the first 3GPP wireless standard full IP-based. Due to its possibility to reach very high throughput (e.g. 100 Mbps in downlink), an efficient end-to end QoS treatment is needed in order to guarantee a good QoS perceived by end user (QoE). Voice service delivered by LTE systems is Voice over IP (VoIP) service,...
Wireless Local Area Network (WLAN) has enabled greater communication capabilities compared to LAN counterpart. However, when it comes to quality of service (QoS), WLAN has lower reliability, where it has higher latency and packet-loss, especially for real-time streaming applications such as voice over internet protocol (VoIP) and multimedia. Thus, improving QoS in WLAN is a major research challenge,...
The wide-scale deployment of intranet and internet along with the advancements in hardware and software technologies are leading to the emergence of new applications that mainly involve the delivery of voice, video and images to the end users. One such application that has generated considerable interest is VoIP. The applications of VoIP technology have gained momentum due to the advancements and...
Most of the Future Internet users will be wirelessly connected to IP clouds through different types of wireless networks. Thus, the number of applications and devices will be increased, and IPv6 insists to be applied. Voice over IP (VoIP) is one of the most popular Internet applications which provide real time voice communications between different parties and network systems. The Quality of Service...
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...
Multimedia applications have been the key driving force in converging fixed, mobile and IP networks. A major hurdle in the realisation of this convergence is obtaining Quality of Service from a heterogeneous, best-effort service network. Interactive voice requires strict bounds on delay, jitter and packet losses, video adds significant bandwidth requirements to the network, while Internet only makes...
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