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Nowadays, world is on going to “Convergence Era”, where data, voice, and video overcome to pass through same network, like IP network. Unfortunately, the fast growth of application technology has not been supported yet by default IP network in the case of quality of service. We have known, that voice over IP services have sensitivity to delay, jitter and latency. And it require of different bandwidth...
For intermittently connected mobile networks, many hybrid routing protocols combined conventional mobile ad hoc networking (MANET) routing with Delay Tolerant Networking (DTN) approach, have been proposed. These protocols transfer data quickly in networks. They transfer data by a store-carry-and-forward paradigm when network is interrupted. However, these routings do not consider the Quality of Service...
In this paper, the real-time wireless transmission system of a medical image by using the RTP / RTSP protocol adaptive streaming transfer is developed. To prepare for network bandwidth change we were utilizing a QoS for real-time services and also to strengthen network security, Secure RTP was used.
In this paper we analyzed suitability of different routing algorithms for establishing bandwidth-delay constrained traffic tunnels in SDN backbone networks. Bandwidth rejection ratio was used as indicator of algorithm's ability to efficiently utilize network resources. Through set of simulations on two real backbone topologies we showed that network topology can affect algorithm's performance, and...
Two Level Scheduling Algorithm (TLSA) is a QoS-enabled fair and efficient connection admission control and packet scheduling algorithm for WiMAX networks. At the first level, an inter-class scheduling algorithm distributes bandwidth among various WiMAX service classes. Then at the second level, class specific algorithms distribute bandwidth among connections of the associated class. The present paper...
Next Generation Networks provide opportunities and challenges for data communication. In particular, the ever increasing bandwidth poses a major challenge to transport layer protocols such as TCP. In this paper the performance of TCP in large bandwidth delay networks, with particular regard to wireless network scenarios, is experimentally investigated. In particular we apply an accredited standard...
This paper presents the application of QoS about a heterogeneous network based on DWDM transmission technique as core and having as edges two technology platforms, ATM and Ethernet applied QoS in residential services such as VoIP, video conferencing, digital television and data link high rates of transmission. With this design and implementation performance were performed measurements to services...
In a heterogeneous environment of 4G broadband networks, participating technologies orchestrate their own provisioning for the Quality of Service (QoS) management. As we move towards 5G, those technologies are moving towards a common set of objectives to offer the end users higher capacity, robustness, security, QoS, etc. in a unified and converged manner. In order to provide end-to-end QoS support...
Voice over Internet protocol (VoIP) transmits voice communication in the packet-based switching network that requires packets to be delivered in a steady timing and with low latency, jitter, packet loss and sufficient bandwidth. Ethernet passive optical network (EPON) is one of the best future-oriented next-generation access network technologies, which can use the strict dynamic bandwidth allocation...
Today, the popularity of peer-to-peer (P2P) applications have increased significantly globally. It starts previously on music file sharing system and progressively develops in many application domains. Currently, P2P applications are able to offer various emerging applications ranging from music, video, IPTV and so on. P2P applications are an attractive service because it allows users for accessing...
Currently, Advanced Driver Assistance Systems (ADAS) require high bandwidth of in-vehicle application. Ethernet has attracted attention for using in-vehicle networks because it provides 100Mbit/s bandwidth. However the legacy Ethernet cannot guarantee Quality of Service (QoS) for in-vehicle networks because priority is not provide. IEEE802.1Q (802.1Q) and IEEE802.1AVB (AVB) of the IEEE802 Ethernet...
In a high performance computer network system especially that has high-speed networks, an imbalance problem occurs in terms of that network performance is significantly higher than computer capacity. The problem deteriorates performance of the entire system by ineffectively overloading application servers by few high performance clients. In this paper, we present performance analysis and validation...
The existing in-vehicle networks are not capable of accommodating increased data in vehicle and the demand of bandwidth. Next generation networks require higher bandwidth and shorter latency. Therefore, inexpensive and high bandwidth ethernet have be studied. IEEE802.1 Audio Video Bridging (AVB) is the standard used to transmit Audio and Video streaming data with guaranteed Quality of Service (QoS)...
The IP Multimedia Subsystem (IMS) is a kind of Multimedia business form and it is an architectural framework for delivering IP multimedia services. In order to increase flexibility and reliability, in this paper we propose a different perspective which maintains the existing IP Multimedia Subsystem (IMS) based signaling platform while processing flow via distributed SDN controllers. Software Define...
Admission control is an important component to control the acceptance of new calls without degrading the Quality of Service (QoS) of the existing calls in the wireless mesh network. Two types of calls are existing in the network which are the new and handoff calls, in order to increase the admission rate for both types of calls a multi-homing admission and mobility management algorithm is proposed,...
Video-streaming traffic has been the majority traffic over the Internet in recent years and TCP-Friendly Rate Control (TFRC) is the most promising protocol to load it. However, TFRC is unable to detect network fluctuation timely in a short time scale. This weakness results in decrease of Quality of Service (QoS) and TCP friendliness. In this paper, we propose an enhanced TFRC Control algorithm based...
Time division multiple access (TDMA) based channel access is one of the most widely used mechanisms in Mobile Ad hoc Networks (MANET) with its efficient channel access and collision free transmissions at its core. In this paper, we propose a unique TDMA frame format designed specifically for supporting two-way voice communication in bandwidth efficient manner. The proposed algorithm uses single radio...
This paper presents a bandwidth-efficient transmission scheme where several signals are sent simultaneously. To allow users’ differentiation at the receiver (s), each user data sequence is first multiplied by a specific amplitude sequence prior to being sent through the channel. In addition, the proposed scheme uses error correcting codes and soft-decision demodulation to reduce residual multi-user...
A real-time multimedia transmission requires the QoS guarantees to preserve the real-time character of the stream. Nowadays, we have several methods for QoS provisioning in IP networks. In this paper we propose a novel method for dynamic network resource allocation using the IP Traffic Flow Description option. Our solution deals with the problem of the trade-off between link utilization and the quality...
In this paper, waiting time analysis for the delay sensitive traffic especially in Internet of things (IoT) is performed. The analysis is based on probabilistic prediction approach for providing Quality of Service (QoS). A dynamic packet scheduling scheme is considered to provide service differentiation and preferential treatment to delay sensitive traffic. The scheduler focuses on reducing the waiting...
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