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Mobility support in IPv6 networks (MIPv6) and Fast Handovers for Mobile IPv6 (FMIPv6) are already released as RFCs for many years. While the former focuses on maintaining the network connections when a mobile node handovers across subnets, the latter is built based on the former concept, but focuses on reducing the packet loss and latency inherent to the handover process. Performance study of both...
The bandwidth in wireless networks is usually shared by a number of wireless nodes. The channel capacity depends on the number of accessing nodes, time, environmental conditions and location of nodes. Due to varying channel conditions, several issues are observed in the transmission of real time multimedia. The existing research on multimedia streaming can be classified into adaptation techniques...
In this paper, we propose a new variant of TCP with an early retransmission scheme as an enhancement to make it more suitable for streaming media. We call this new protocol TCP-ER. We performed extensive ns2 simulations to show that: 1) The early retransmission scheme can considerably reduce the number of retransmission timeouts and packet delay jitter in a variety of network environments. 2) TCP-ER...
New emerging technologies like Multimedia applications require timely delivery of information as compared to reliability. The most widely used protocols over transport layer are Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). Both of these have some drawbacks while using in real time applications. TCP increases delay in transfer of data but achieving reliable transfer of data...
We analyze and compare various transport protocols in the context of wireless in-vehicle IP-based audio and video communication. We determine the most appropriate transport protocol and discuss its benefits for an application in the car. The analyses are accomplished based on the IEEE 802.11 standard. A testbed is used to measure and compare quality of service values such as throughput, jitter and...
In this paper our focus is on the performance of two new transport protocols DCCP and SCTP; the emphasis is to determine which protocol can better meet the Quality of Service (QoS) for MPEG4 video over wireless local area network. Based on results obtained in this analysis it is observed that both SCTP and DCCP achieved better throughput than UDP. For video traffic load of 4 Mbps, throughput achieved...
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