Removing path-switching cost in video delivery over multiple paths in mobile networks

2012 ◽  
Vol 58 (1) ◽  
pp. 38-46 ◽  
Author(s):  
James Nightingale ◽  
Qi Wang ◽  
Christos Grecos
IEEE Network ◽  
2013 ◽  
Vol 27 (2) ◽  
pp. 28-33 ◽  
Author(s):  
Dong-Hoon Shin ◽  
Danny Moses ◽  
Muthaiah Venkatachalam ◽  
Saurabh Bagchi

2008 ◽  
Vol 09 (03) ◽  
pp. 177-203 ◽  
Author(s):  
LUCIANO BONONI ◽  
MARCO DI FELICE

In this paper, we propose a multipath routing scheme for wireless mobile networks which extends the Ad Hoc On-demand Multipath Distance Vector (AOMDV) routing protocol, by introducing a novel load-balancing approach to concurrently distribute the traffic among the multiple paths. The traffic-path allocation scheme is based on cross-layer measurements of path statistics reflecting the size and congestion level of each path. In order to provide an efficient support to the proposed routing scheme at the MAC layer, we also study the composition effect of a IEEE 802.11-based enhanced MAC forwarding mechanism called Fast Forward (FF), used to reduce the effects of self-contention among frames at the MAC layer. The protocol framework has been modelled and extensively simulated for a large set of metrics and scenarios. Simulation results provide guidelines for multi-hop communication solutions under both static and mobile scenarios and different traffic loads.


The world of today is an ultimate connected world, where all types of physical devices and virtual objects can communicate in order to exchange information or provide services. Internet of Things (IoT) is one of the leading areas that make this worldwide connection possible, by integrating and enabling different solutions and communication technologies. Wireless mobile networks are increasing very fast and giving more perspectives in the telecommunication field. Nevertheless, some problems are still facing this development. The most important and mandatory issue, among them, is the security of the network. In this paper, we will introduce some related works about security concept for mobile networks and we present our solution that provides a new dynamic approach to find a variable number of multiple paths according to the neighborhood, the density and to the mobility of nodes in the network. In order to evaluate the impact of our solution on network performances, we implement our algorithm on one of the most known multipath protocols (MP-OLSR).


2013 ◽  
Vol 2013 ◽  
pp. 1-20 ◽  
Author(s):  
James Nightingale ◽  
Qi Wang ◽  
Christos Grecos

High-quality real-time video streaming to users in mobile networks is challenging due to the dynamically changing nature of the network paths, particularly the limited bandwidth and varying end-to-end delay. In this paper, we empirically investigate the performance of multipath streaming in the context of multihomed mobile networks. Existing schemes that make use of the aggregated bandwidth of multiple paths can overcome bandwidth limitations on a single path but suffer an efficiency penalty caused by retransmission of lost packets in reliable transport schemes or path switching overheads in unreliable transport schemes. This work focuses on the evaluation of schemes to permit concurrent use of multiple paths to deliver video streams. A comprehensive streaming framework for concurrent multipath video streaming is proposed and experimentally evaluated, using current state-of-the-art H.264 Scalable Video Coding (H.264/SVC) and the next generation High Efficiency Video Coding (HEVC) standards. It provides a valuable insight into the benefit of using such schemes in conjunction with encoder specific packet prioritisation mechanisms for quality-aware packet scheduling and scalable streaming. The remaining obstacles to deployment of concurrent multipath schemes are identified, and the challenges in realising HEVC based concurrent multipath streaming are highlighted.


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