Personalized recommendations in search engines, social media and also more traditional increasingly raise concerns over potentially negative consequences for diversity the quality of public discourse. The algorithmic filtering adaption online content to personal preferences interests is often associated with a decrease information which users are exposed. Notwithstanding question whether these claims correct or not, this article discusses how can be designed stimulate diverse exposure break...

This paper presents the Spatial Representation Description (SRD) feature of second amendment MPEG DASH standard part 1, 23009-1:2014 [1]. SRD is an approach for streaming only spatial sub-parts a video to display devices, in combination with form adaptive multi-rate that intrinsically supported by DASH. The extends Media Presentation (MPD) describing relationships between associated pieces content. enables client select and retrieve those streams at resolutions are relevant user experience....

This paper presents a video streaming client implementation that makes use of the Spatial Relationship Description (SRD) feature MPEG-DASH standard, to provide zoomable and navigable an end user. SRD allows request spatial subparts particular stream, which might be available in multiple resolutions.

The efficiency of Bit Torrent in disseminating content has inspired a number P2P protocols for on-demand video streaming (VoD). Prior work on adapting to VoD mainly focused the piece selection policy, since requires somewhat "in order" download progress. Conversely, not much effort been spent into Torrent's peer where nodes serve those that have recently uploaded them at highest rates. This mechanism incentivizes cooperation among peers but, heterogeneous system (i.e. different bandwidth...

The efficiency of BitTorrent in content distribution has inspired a number peer-to-peer (P2P) protocols for on-demand video (VoD) streaming systems (henceforth BitTorrent-like VoD systems). However, the fundamental quality-of-service (QoS) requirements (i.e. providing peers with smooth playback continuity and short startup delay) make design these more challenging than normal file-sharing systems. In particular, bandwidth allocation strategy is an important aspect systems, which becomes even...

In Information Centric Networks, each node on the Data delivery path has ability to cache data items that flow through it. However, takes decision whether a particular item or not independently from other nodes path. This approach might result in an inefficient usage of such in-network caching capacity and lead reduced network robustness performance. this paper, we propose BidCache, method allows situated traversed by Interest participate auction win right which will be returned for...

Many P2P systems have been designed without taking into account an important factor: a large fraction of Internet users nowadays are located behind network address translator (NAT) or firewall, making them unable to accept incoming connections (i.e. unconnectable). Peers suffering from this limitation cannot fully enjoy the advantages offered by architecture and thus they likely get poor performance. In work, we present mathematical model study performance swarming system in presence...

The efficiency of BitTorrent for file sharing has inspired a number BitTorrent-based P2P protocols Video-on-Demand (VoD). It been shown that these systems are scalable in steady-state: the service quality provided to users does not depend on system. However, it is well understood how scale under flash-crowds. In this work, we model general BitTorrent-like VoD system and find flash-crowd quality-of-service (QoS) degrades with users. Also, our analysis shows that, at very beginning...

Enhancing reciprocity has been one of the primary motivations for design incentive policies in BitTorrent-like P2P systems. Reciprocity implies that peers need to contribute their bandwidth other if they want receive return. However, over-provisioning characterizes today's BitTorrent communities and development many next-generation systems with real-time constraints (e.g., live on-demand streaming) suggest more effort can be devoted reducing inequity (i.e., difference service received) among...

Providing incentives for user contribution has been one of the primary design goals Peer-to-Peer systems. The newly-emerged BitTorrent private communities adopt Sharing Ratio Enforcement (SRE) on top BitTorrent's incentive mechanism, Tit-For-Tat, in order to strictly enforce a minimum member provide, relation amount service it received. In this paper, we provide theoretical model analyze 1) how SRE provides seeding incentives, and 2) influences download performance system. Specifically,...

In conjunction with BBC R&D experiments and demonstrations at the 2014 Commonwealth Games, an explorative field trial was conducted a live zoomable UHD video system. The unique featured world's first tiled streaming of 4K to end users. During trial, we studied evaluated attractiveness novelty interactive application, investigated system design aspects tiling this paper, evaluate overall perceived quality experience (QoE) application what extent QoE depends on factors and/or network...

This paper reports on the latest developments in tiled streaming. As an extension of HTTP adaptive streaming, it retains all benefits this streaming technology, while adding potential interaction when UHDTV is consumed mobile devices. In particular, we discuss underlying principles and aspects, such as multi-layer resolution scaling, spatial segmentation Then present insights from a number technology validation tests demonstrations, live dance performance Manchester May 2013; training tool...

This paper presents a localized crowd-sourced multimedia production and distribution workflow to enable today's mobile producers of content serve their in real-time other users, who may be both located nearby or remote the producers, while at same time drastically reducing bandwidth utilization, uplink downlink, as compared traditional services. To achieve this, we created modular framework for many-to-many live deployed it within media delivery platform developed FLAME project [3]. The...

The use of real-time remote communication has seen significant growth in the last few years. need for providing feeling togetherness communication, combined with new developments volumetric video, are expected to lead immersive and holographic near future. These services will require high bandwidth, low latency processing both at sender receiver side, often within network itself too. In order fulfill these requirements, we argue that a holistic cross-layer optimization approach, takes input...

Internet-of-Things (IoT) devices, wearables, sensor networks and lately vehicles produce continuous streams of data. Distributing every data item to all interested applications can quickly bring the underlying network its capacity limits. Moreover, are often only in "big picture" derived from aggregates this Hence, aggregation becomes a necessary step order optimize bandwidth utilization. The standard approach is based on centralized, application-specific method, with gateways collecting...

Information-Centric Networks (ICNs) facilitate in-network caching, which has amongst others the advantage of providing higher information availability than traditional IP networks. This property is very beneficial in a variety scenarios, ranging from node mobility to network disruptions and failures. However, clear understanding extent ICNs remains available users those scenarios as well impact different ICN design choices (e.g. caching strategy capacity) characteristics topology) currently...

5G promises to offer a single network platform that can be optimized for several vertical industries and applications. It is envisioned this optimization will achieved through advanced orchestration functionalities. Video streaming accounts the vast majority of mobile traffic, hence optimizing performance Quality Experience (QoE) video traffic becomes crucial next generation (5G) networks. In paper, we focus on applications based MPEG-DASH (Dynamic Adaptive Streaming over HTTP), technology...

The end-to-end connection paradigm of TCP/IP does not work well in situations characterized by intermittent (or no) global internet connectivity, as often is the case offshore Wireless Sensor Networks (WSNs), military networks, rural/remote areas and maritime transport. Delay/Disruption Tolerant Networking (DTN) investigates to address these use cases, built an overlay on top existing network infrastructure.