Effective bandwidth aggregation over multiple interfaces for real-time and TCP applications

2003 ◽  
Author(s):  
Ramesh Rao
Keyword(s):  
Real Time ◽  
Effective Bandwidth ◽  
Bandwidth Aggregation ◽  
Multiple Interfaces

Enhancing Modeling for Network Selection Using Graph Theory in Beyond 4G Networks

2020 ◽  
Vol 16 (1) ◽  
pp. 48-69
Author(s):  
Mohamed Lahby
Keyword(s):  
Graph Theory ◽  
Real Time ◽  
Access Network ◽  
Network Selection ◽  
Multiple Interfaces ◽  
4G Networks ◽  
Significant Performance ◽  
Selection Decision ◽  
Major Trend ◽  
4G Lte

In recent years, the development and the deployment of different generation systems such as 3G (UMTS, Wi-Fi), 4G (LTE, WIMAX), and 5G have become a reality for different telecommunication operators. At the same time, the development of new mobile devices with multiple interfaces have shifted the behavior of users concerning the utilization of the internet. Additionally, several streaming servers are available to provide real time applications such as e-commerce transactions, video streaming, online gaming, etc. As a result, the users have the privilege to use different multimedia applications at anytime and anywhere. The major trend in Beyond 4G networks is determining the best access network for the end user in terms of quality of service (QoS) during the network selection decision. Thus, in this article, the authors investigate graph theory and the AHP approach to deal with the network selection issue. The experimental results show that the proposed policy can achieve a significant performance in terms of QoS metrics for real-time streaming than conventional algorithms.

scholarly journals Packet Striping for Multi-Interfaces

2011 ◽  
pp. 67-72
Author(s):  
Saima Begum ◽  
P.K. Pattnaik
Keyword(s):  
Mobile Terminal ◽  
Mobile Ipv6 ◽  
Mobile Systems ◽  
Multiple Channels ◽  
Bandwidth Aggregation ◽  
Data Packets ◽  
Multiple Interfaces ◽  
Correspondent Node ◽  
Simulation Results ◽  
The Individual

In future mobile systems, the end-terminals will be considerably more diverse than nowadays, and the users will have a greater choice of access technologies, offering different QoS, cost, security and so on. A mobile terminal equipped with multiple interfaces can achieve a much higher bandwidth by aggregating the bandwidth offered by the individual networks. In this paper, we present a system based on Mobile IPv6 that achieves the above objectives. We will discuss in detail the architectural requirements and algorithms that are needed to support the above system. We also extended our proposed scheme to support even if the correspondent node also has multiple interfaces. Simulation results show that the proposed algorithm can uniformly distribute data packets among multiple channels and deliver the packets perfectly in order at receiver to achieve bandwidth aggregation.

The Design and Implementation of an Optimized MPTCP Data Scheduling Algorithm

2014 ◽  
Vol 519-520 ◽  
pp. 170-176
Author(s):  
Xi Ming Li ◽  
Wen Dong Wang
Keyword(s):  
Real Time ◽  
Mobile Devices ◽  
Resource Utilization ◽  
Scheduling Algorithm ◽  
Quality Parameters ◽  
Data Scheduling ◽  
Design And Implementation ◽  
Multiple Interfaces ◽  
Data Throughput

Mobile devices are emerging with multiple interfaces with diverse access technologies. Using multiple interfaces simultaneously can bring lots of benefits to users. Multi-Path TCP is proposed in recent years, which aims to provide the capability for a TCP host to simultaneously use its multiple interfaces to transmit in one TCP connection. However the original MPTCP data scheduling algorithm has some defects and cannot fit multiple kinds of applications to achieve maximize throughput. We thus proposed and implemented an optimized MPTCP data scheduling algorithm. We used the type of service of an application and quality parameters of each interfaces measured in real time to calculate the best path dynamically. The results of the experiment showed that our algorithm had better performance than the original one in achieving higher data throughput, resource utilization and more rationality during an MPTCP transmission.

Processing focus in native and non-native speakers of English: an eye-tracking study in the visual world paradigm

2021 ◽  
pp. 1-32
Author(s):  
Haoyan Ge ◽  
Iris Mulders ◽  
Xin Kang ◽  
Aoju Chen ◽  
Virginia Yip
Keyword(s):  
Eye Movements ◽  
Eye Tracking ◽  
Real Time ◽  
Native Speakers ◽  
Visual World ◽  
Visual World Paradigm ◽  
L2 Processing ◽  
Multiple Interfaces ◽  
Native Speakers Of English ◽  
The Difference

Abstract This “visual-world” eye-tracking study investigated the processing of focus in English sentences with preverbal only by L2 learners whose L1 was either Cantonese or Dutch, compared to native speakers of English. Participants heard only-sentences with prosodic prominence either on the object or on the verb and viewed pictures containing an object-focus alternative and a verb-focus alternative. We found that both L2 groups showed delayed eye movements to the alternative of focus, which was different from the native speakers of English. Moreover, Dutch learners of English were even slower than Cantonese learners of English in directing fixations to the alternative of focus. We interpreted the delayed fixation patterns in both L2 groups as evidence of difficulties in integrating multiple interfaces in real time. Furthermore, the similarity between English and Dutch in the use of prosody to mark focus hindered Dutch learners’ L2 processing of focus, whereas the difference between English and Cantonese in the realization of focus facilitated Cantonese learners’ processing of focus in English.

scholarly journals Effective Bandwidth Prediction through Statistical Technique over Heterogeneous Networks

2019 ◽  
Vol 8 (12) ◽  
pp. 508-512
Keyword(s):  
Real Time ◽  
Mobile Devices ◽  
Video Streaming ◽  
Heterogeneous Networks ◽  
Streaming Media ◽  
Statistical Technique ◽  
Prediction Algorithm ◽  
Effective Bandwidth ◽  
Battery Life

Real time Streaming Media (Video Streaming) applications are mostly popular on the mobiles and computers using Internet. Due to higher demand of video streaming through wireless network and mobile devices, video are being transmitted through various heterogeneous networks so as to efficiently deliver to the clients devices. This has resulted in the lower quality of real time video, since real time streaming media has quality of parameter requirements like high bandwidth, low packet loss ratio, higher delay and jitter. Streaming media such as video through heterogeneous networks has more challenges due to unreliable wireless networks and device mobility; moreover bandwidth, delay and loss are unknown in advance and are unbounded. In this paper, effective bandwidth prediction through statistical technique over heterogeneous wireless communication networks is proposed. Statistical technique offers computationally efficient bandwidth prediction with reasonably better accuracy. Especially with mobile devices with limited computational power and battery life, necessitates better bandwidth prediction with efficient but computationally simpler algorithms. Bandwidth predictions assist in selecting effective network for video streaming when various heterogeneous networks are available. Detailed bandwidth prediction algorithm is presented with use of quality of service (QoS) parameters data sets available online.

The Development of Flow Controller Based on RF Card

2014 ◽  
Vol 998-999 ◽  
pp. 690-693
Author(s):  
Qiu Fang Ma
Keyword(s):  
Signal Processing ◽  
Low Power ◽  
Real Time ◽  
Monitoring System ◽  
Output Signal ◽  
Original System ◽  
Flow Data ◽  
Linkage Mechanism ◽  
Ic Card ◽  
Multiple Interfaces

An IC card controller based on the low-power microprocessor MSP430F1611 and RF card operation module YMG600 is developed to construct the flow prepayment system for the existing flowmeters. Considering the compatibility with the original system, the hardware with multiple interfaces is put forward on the analysis of output signal of the widely used flowmeters. It is focused on the realization of the flow signal processing circuits and IC card management module. In order to improve the safety of the system, the 3DES algorithm is adopted to encrypt the flow data. Furthermore, a linkage mechanism between the IC card controller and computer monitoring system is put forward to realize the real-time monitoring. Finally a serial of tests including flow sample and billing, it shows that the controller is characterized with good compatibility, high safety and practicability.

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