A Customized IPv6 Header for Packet Transmission over a LAN

2010 ◽  
Vol 439-440 ◽  
pp. 1081-1086
Author(s):  
Hua Qing Zhou ◽  
Sheng Hui Dai
Keyword(s):  
Packet Loss ◽  
Transmission Efficiency ◽  
Compression Algorithm ◽  
Packet Transmission ◽  
New Method ◽  
Transmission Performance ◽  
Wireless Links ◽  
Header Compression

Header compression can effectively improve transmission efficiency, but existing header compression algorithm reduces the performance when operating over wireless links, because the differencing coding that the algorithm used does not adapt to packet over LAN. A new method for IPv6 header compression named is proposed, the compression is based on substitution and is not affected by packet loss. The method can significant improve the transmission performance over LAN.

Data transmission in Hybrid Distributed Environment

2016 ◽  
Vol 6 (6) ◽  
pp. 2989
Author(s):  
Anton Pavlovich Teykhrib
Keyword(s):  
Packet Loss ◽  
Data Transmission ◽  
Communication Channel ◽  
Packet Transmission ◽  
Distributed Environment ◽  
High Quality ◽  
Channel Characteristics ◽  
Network Layers ◽  
Distribution Scheme ◽  
Selection Of

<p>This article discusses a hybrid distributed environment including two levels of nodes: the first level which has high quality channels between the nodes, and the second one in which the nodes are directly involved in communication and the communication is performed through the first-level nodes. For the indicated distribution scheme, the questions of selection of the best path between the first-level nodes are solved based on such communication channel characteristics as delay in packet transmission, jitter in transmission, packet loss in transmission, and choosing a method for data transmission through the selected best path: protocols of transport and network layers have been compared, and the use of network layer has been preferred.</p>

scholarly journals Unilateral Route Method to Estimate Practical Mutual Inductance for Multi-Coil WPT System

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 377
Author(s):  
Seon-Jae Jeon ◽  
Sang-Hoon Lee ◽  
Dong-Wook Seo
Keyword(s):  
High Frequency ◽  
Power Transmission ◽  
Transmission Efficiency ◽  
Mutual Inductance ◽  
New Method ◽  
Parasitic Element ◽  
Parasitic Effects

Multi-coil WPT systems require mutual inductance information between coils to increase the power transmission efficiency. However, in the high frequency (HF) bands such as 6.78 MHz and 13.56 MHz, the presence of surrounding coils changes the value of the mutual inductance between the two coils due to the parasitic element effect of the coils. These parasitic effects make it harder to estimate the mutual inductance among three or more coils. In contrast to ideal mutual inductance, which has a constant value regardless of frequency and surrounding coils, we define the practical mutual inductance as the mutual inductance varied by parasitic elements. In this paper, a new method is presented to estimate the practical mutual inductance between multiple coils in the HF band. The proposed method simply configures the expression of practical mutual inductance formula because only one of two bilateral dependent voltage sources generated by mutual inductance is considered. For several coils placed along the same axis, the practical mutual inductances between coils were measured with respect to the distance between them to validate the proposed method. The practical mutual inductance obtained from the proposed method was consistent with the simulated and measured values in HF band.

Simulation Study for the Performance Impacts of Video Multicast Caused by In-Cast in Cloud Computing Environment

2014 ◽  
Vol 598 ◽  
pp. 677-681
Author(s):  
Yen Wen Chen ◽  
Yuan Sing Ho ◽  
Chung Chen Sun
Keyword(s):  
Cloud Computing ◽  
Video Streaming ◽  
Packet Transmission ◽  
System Throughput ◽  
Transmission Performance ◽  
Software Environment ◽  
Cloud Computing Environment ◽  
Video Multicast ◽  
Streaming Services ◽  
Streaming Service

Cloud computing is becoming one of the most convenient ways for information services through network accesses. In this paper, we describe the architecture of cloud computing and discuss the issue of in-cast, which may downgrade the transmission performance when the number of simultaneous transmission servers is getting larger. The in-cast transmission may introduce the out of sequence of packet delivery and may reduce the system throughput. This paper constructs the software environment to simulate the performance of video streaming services delivered by the servers in cloud. We first examine the performance of the out of sequence issue of packet transmission when the Hashed Credit Fair (HCF) algorithm was applied and investigate the multicast performance of video streaming service with respect to the numbers of servers. With the increasing of the number of servers, we note that transmission performance is not improved, on the contrary, the system throughput downgrades sharply. We believe the simulation results of this paper will be helpful for the design of cloud video multicast services.

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