Packet loss

About: Packet loss is a research topic. Over the lifetime, 21235 publications have been published within this topic receiving 302453 citations.

Performance Study of Live Video Streaming Over Highway Vehicular Ad Hoc Networks

Abstract: Live video streaming over vehicular ad hoc networks (VANET) is an attractive feature to many applications, such as emergency live video transmission, road-side video advertisement broadcasting and inter-vehicle video conversation. Though vehicles have ample bandwidth, computation and storage capacity to support data intensive communication, the high mobility may cause persistent network partition. The performance of video streaming suffers from the delay and packet loss incurred by the long time disconnection. Although many solutions have been proposed to handle the high mobility problem, few of them addressed the problem in the context of video transmission. In this paper, we focus on video streaming between vehicles in highway, where the traffic density is adequate to mitigate frequent link disconnections and persistent network partitions. We study the performance of video streaming under different data forwarding and buffer management schemes. Real video data and the dedicated short range communications (DSRC) are used in the simulation study to better match the reality. The result of this paper gives insight for the design of the future inter-vehicle video streaming system.

Method for high speed rerouting in multi protocol label switching network

Abstract: Disclosed is a method for high speed rerouting in a multi protocol label switching (MPLS) network which can minimize a packet loss and enable a fast rerouting of traffic so as to protect and recover a multi point to point LSP occupying most LSPs in the MPLS network. The method for high speed rerouting in a multi protocol label switching (MPLS) network, the method comprising the steps of controlling a traffic stream to flow in a reverse direction in a point where a node or link failure occurs by using a backup Label Switched Path (LSP) comprising an Explicitly Routed (ER) LSP having a reverse tree of a protected multi point to point LSP and an ingress LSR through an egress LSR.

Method and system for generating data packets on a heterogeneous network

Abstract: An improved method and system for generating packets for transmission over different routes on a network is presented. In a large network such as the Internet, each route over the network carries different size packets which are not compatible unless they are fragmented into smaller segments. Initially, the technique determines a maximum transmission unit (MTU) capable of being transmitted over a predetermined route. Next, the size of each packet to be transmitted over the network is compared with the MTU size. If the comparison indicates the packet is larger than the MTU, the packet must be processed further before it can be transmitted over the route. The additional processing initially divides the total number of transmission units contained within the packet by the MTU value. The integer result of this division is temporarily stored in a DCOUNT variable and the remainder of the division in a RCOUNT variable. If the remainder in RCOUNT is non-zero, the value in DCOUNT is incremented by one. The DCOUNT value indicates the minimum number of datagrams for sending a packet using the present technique. Next, the transmission units contained in the original packet are redistributed equally into DCOUNT packets and then sent over the network route.

The evaluation of delay jitter for haptics collaboration over the Internet

Abstract: What we are concerned with in this paper is a shared virtual environment (SVE) on a non-dedicated network like the Internet. Especially, we address haptics on an SVE for the new generation of network applications. The goal of our research Is to build an SVE system in which multiple participants can collaborate using haptics feedback, even though the participants are located around the world. One of the problems for this system is network impairment, and we have examined the effect of constant network delay and packet loss on the haptics collaboration system. In this paper we examine and evaluate the effect of delay jitter on the system when using media synchronization and dead reckoning.

System and method for routing communications between packet networks based on intercarrier agreements

Abstract: A system and method for communicating data packets over packet network owned by different communications carriers. Rate information may be stored in a first packet network for communicating data packets over at least two other packet networks. A determination over which of the at least two other packet networks to communicate data packets based on a lowest billing rate for communicating the data packets may be made. The data packets may be communicated over a packet network determined to have the lowest billing rate for communicating the data packets.