A Joint Interchannel and Network Coding Schema for nVoD Services over Wireless Mesh Networks

Abstract

As wireless mesh networks become more widely deployed, media streaming in such networks poses a pressing research issue because of the increasing importance of multimedia applications. The challenge with wireless mesh networks is the time-varying wireless channel compounded by multi-hop transmission. However, wireless mesh networks also present an opportunity, i.e., the redundancy provided by broadcast wireless media and mesh connectivity. In this paper, we present a joint interchannel and network coding schema to take advantage of this opportunity and to overcome the challenge of wireless mesh networks. We evaluate of the proposed joint coding through both mathematical analysis and computer simulation. The results demonstrate significant benefits in terms of protection against packet losses and bandwidth utilization of the joint coding schema.

Training in Digital Skills in Early Childhood Education Teachers: The Case of the University of La Laguna

“…ICTs have transformed educational practice: future teachers must be trained in skills needed to keep up with the advances of the digital age, which have become essential for the school and which should lead to improved teaching strategies and learning teaching processes [17], [23], [24], [25], [26]…”

An Efficient NVoD Scheme Using Implicit Error Correction and Subchannels for Wireless Networks

“…In [4] we evaluated this scheme, both analytically and by means of computer simulation, demonstrating its feasibility. Additionally, in [20] we studied IEC in wireless cooperative networks using network coding. This work showed that IEC obtains significant benefits in terms of protection against packet losses and bandwidth utilization of the joint coding schema.…”

“…In this regard, there are several investigations in the academic literature that deal with these two topics, such as [28]- [30]. The application of network coding is beyond the scope of this paper, but IEC can be easily adapted to this transmission paradigm, as described in [20]. Basically, network coding is based on forwarding packets towards their destination/s through each network node.…”