Self-configured multipath routing using path lifetime for video-streaming services over Ad Hoc networks

Abstract

The increasing spread of mobile nodes along with the technical advances in multi-hop MANETs (Mobile Ad hoc NETworks) make this kind of networks an important type of access network of next generation. The demand of multimedia services from these networks is expected to significantly grow in the next years. Multimedia services, though, require the provision of Quality of Service (QoS). Nevertheless, the highly dynamic nature of MANETs, the energy constraints, the lack on centralized infrastructure and the variable link capacity, makes the QoS provision over MANETs a matter that challenges attention. These features make self-configuration and system adaptation questions of major importance when developing a QoS-aware framework. To tackle this issue, we have designed a-MMDSR (adaptive-Multipath Multimedia Dynamic Source Routing), a multipath routing protocol able to self-configure dynamically depending on the state of the network. The approach includes cross-layer techniques especially designed to improve the end-to-end performance of video-streaming services over IEEE 802.11e Ad Hoc networks. Besides, a straightforward analytical model to estimate the path error probability is presented. This model is used by the routing scheme to estimate the lifetime of the paths. In this way, proper proactive decisions can be made before the paths get broken. The model simplicity is appropriate for low capacity wireless devices. Simulation results validate the proposal and show the improvement on standard DSR (Dynamic Source Routing) and on a previous static version.

A Novel Effective Multipath Routing Technique Providing High Availability in Wireless Networks

“…AODV is designed for single path routing and does not support multipath routing. Several approaches have been proposed to provide multipath routing for wireless networks [8][9][10][11][12][13][14][15][16][17][18]. Out of the proposed multipath routing approaches, AOMDV, AODVM, and MP-AODV are multipath routing variants of AODV.…”

“…Therefore, multipath routing plays an important role in MANETs and WSNs. Several multipath routing protocols have been proposed to provide fault tolerance and load balancing for MANETs and WSNs [5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

QoS Routing for Multimedia Communication over Wireless Mobile Ad Hoc Networks

“…For audio/video transmission, special routing protocols must be proposed, as special attention must be given towards the live streaming. Igartua and Frias (2010) have presented a self-configured framework for video streaming services over wireless MANET, entitled as Adaptive-Multi-path Multimedia Dynamic Source Routing (A-MMDSR). This framework can self-configure according to the dynamics of the environment.…”

Transmitting Scalable Video Streaming over Wireless Ad Hoc Networks

“…In order to solve these issues, an adaptive dynamic source routing is proposed in [39]. According to the authors, this scheme is able to self-configure the MANETs depending on the network condition.…”

“…An analytical model is also proposed for estimating the path lifetime between the co-joint nodes of the MANET, which helps in proactive decision making before the paths break. Results show some improvements when compared with the standard DSR protocol [29,39,40]. However, overall system performance is not measured to see the self-configuration capabilities and also, the phenomenon of the self-adjustment of parameters needs to be addressed, as all parameters are statically used in this approach which is not suitable for dynamic MANET environments.…”