IPv4 to IPv6 transition is an inevitable process when deploying IPv6 networks within the present IPv4 Internet. The transition process is complex as it has to deal with issues related to IPv4-IPv6 interoperability including routing, DNS, error handling, etc. In this paper, a new solution named DTTS (Dynamic Tunneling Transition Solution) for IPv4 to IPv6 transition based on dynamic tunneling te...

We present a new algorithm for wavelength division multiplexing (WDM) star optical networks. The resulting protocol is pre-transmission coordination-based without packet collisions. The proposed algorithm tries to schedule the transmission requests of the network, with the assistant of a prediction mechanism. With the prediction of the packet requests the algorithm manages to decrease the calcu...

TCP Westwood (TCPW), is a TCP protocol with a sender-side modification of the window congestion control scheme. This protocol is intended to act in packet lossy environments. It relies on a continuous estimation, by the traffic source, of the connection packet rate based on the ACK reception rate. And this in order to compute the congestion window and the slow start threshold settings after a c...

In wireless networking performance is one of the most important factor but it is very difficult to estimate the performance of the system because it require a lot of time cost and equipment specially in case of the large network, So in order to estimate the more accurate figure or data before implementation simulation results play a vital role. In this paper we compare the result of the experim...

1 Assistant Professor, Department of Computer science and Engineering, V.S.B Engineering College, Karur, Tamilnadu India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract : Data security and data protection against pollution attacks with resource efficiency are the major challenging tasks of netwo...

This paper is concerned with the efficient transmission of scalable compressed images with complex dependency structures over lossy communication channels. Our recent work proposed a strategy for allocating source elements into clusters of packets and finding their optimal code-rates. However, the previous work assumes that source elements form a simple chain of dependencies. The present paper ...

The long range wide area network (LoRaWAN) is one of the enabling technologies for low power (LPWA) networks. In LoRaWAN, a node transmits its packet to gateway (GW) in an autonomous and decentralized manner. quantity data that can be transmitted by each limited duty cycle (DC). Furthermore, it not easy nodes perform sophisticated techniques increasing due their functionality, especially when a...

Some of the major challenges for interactive and streaming multimedia applications are the delay and delay jitter of today’s IP packet networks. In this paper, we present the implementation, on the STMicroelectronics NomadikTM multimedia processor family, of an advanced playout scheduling scheme that achieves high robustness against late packets while maintaining very low buffering delay at the...

Designing a lightweight, secure communication protocol for Wireless Sensor Networks (WSNs) remains a challenging issue since sensor networks are resource limited and are left unattended. Sensor nodes in WSNs are subjected to varying forms of attacks. An adversary may destroy or damage the communications done in multi-hop WSNs by means of packet dropping and modification. Hence it is essential t...

In this paper, we design and evaluate an Internet friendly transport-level protocol (IFTP) for solving the TCP-friendly problem. IFTP has two modes of operation. In the standard mode, the IFTP connection faithfully emulates the behaviour of TCP in order to roughly obtain a bandwidth equal to that of a TCP connection. In the extended mode, a simple modification is used to grant QoS-differentiate...