Network error control for Rapid and Reliable Data Delivery (R2D2)

用于快速可靠数据传输的网络错误控制 (R2D2)

• 批准号: EP/L006251/1
• 负责人: Ioannis Chatzigeorgiou
• 金额: $ 12.54万
• 依托单位: Lancaster University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FL006251%2F1
• 关键词: Network; error; control; Rapid; Reliable

The widely anticipated fourth generation (4G) of mobile communications is expected to accommodate highly popular but bandwidth-demanding content on-the-move, ranging from high-definition multimedia streaming and online video gaming to software distribution and movie downloads. Long-Term Evolution (LTE), which is the dominant system for 4G networks, has introduced state-of-the-art fountain coding to support data broadcast and multicast services. The appealing property of fountain codes to adapt transmission rate to channel conditions, regardless of the number of receiving mobile users, is however constrained by a trade-off between latency and network overhead. The inherent requirement of content streaming for low latency can thus lead to a significant increase in overhead which, as recent research suggests, can be alleviated if adjacent mobile nodes form cooperative clusters. More specifically, 4G-enabled devices equipped with short-range communication capabilities, such as WiFi or Bluetooth, could request missing packets from neighbouring devices. The use of network coding in each cooperative cluster could further reduce traffic and energy consumption. Therefore, the combination of point-to-multipoint fountain coding and collaborative network coding at the application layer with point-to-point channel coding at the physical layer is an attractive alternative design to conventional automatic repeat request (ARQ) protocols, which can be less energy and bandwidth efficient. Nevertheless, there is great scope for tailoring the proposed scheme to the requirements of upcoming 4G broadband technologies and developing radically new paradigms to satisfy the increasing demand for streaming and downloading of high quality media in next generation networks communications. The proposed project aims to develop a mathematical framework to identify key relationships between the various network parameters, contribute to the understanding of network dynamics and assist in the system-level optimisation of network-coded architectures. The benefits of low-level optimisation will also be harnessed if separate designs of channel coding and network coding are replaced by joint designs for content distribution, which better leverage the benefits of redundancy and boost reliability without requiring significant changes to existing infrastructures. The project also aspires to delve into the emerging research field of network error correction and develop practical implementations of unified channel and network codes that deliver high reliability, low decoding complexity and increased security from malicious users.The proposed research will be carried out in consultation with international collaborators from universities in Portugal and Norway and its outcomes will benefit not only mobile ad-hoc architectures, but related systems too, such as broadband fixed wireless access networks, machine-to-machine communications and image & video processing. We anticipate that our work on network error control techniques will contribute to the reinforcement of the UK research base and play an important role in putting the UK at the forefront of developments in the arena of next-generation mobile technology.

人们普遍期待的第四代(4G)移动通信预计将适应非常受欢迎但对带宽要求很高的移动内容，从高清晰度多媒体流和在线视频游戏到软件分发和电影下载。长期演进(LTE)是4G网络的主导系统，它引入了最先进的喷泉编码来支持数据广播和组播服务。然而，无论接收移动用户的数量如何，喷泉码使传输速率适应于信道条件的吸引人的特性受到等待时间和网络开销之间的权衡的限制。因此，对于低延迟的内容流的固有要求可能导致开销的显著增加，正如最近的研究所表明的那样，如果相邻的移动节点形成协作集群，则可以减轻开销。更具体地说，配备了短距离通信功能的4G设备，如WiFi或蓝牙，可能会向邻近设备请求丢失的分组。在每个协作集群中使用网络编码可以进一步减少流量和能源消耗。因此，应用层的点对多点喷泉编码和协作网络编码与物理层的点对点信道编码的组合是传统自动重传请求(ARQ)协议的一种有吸引力的替代设计，其能量和带宽效率较低。然而，建议的方案仍有很大的空间来适应即将到来的4G宽带技术的要求，并开发全新的范例来满足下一代网络通信中对高质量媒体的日益增长的流媒体和下载需求。拟议的项目旨在建立一个数学框架，以确定各种网络参数之间的关键关系，促进对网络动态的了解，并协助在系统一级优化网络编码架构。如果将频道编码和网络编码的单独设计替换为内容分发的联合设计，则还将利用低级别优化的好处，从而更好地利用冗余的好处并提高可靠性，而不需要对现有基础设施进行重大更改。该项目还渴望深入研究新兴的网络纠错研究领域，开发实用的统一信道和网络代码实现，提供高可靠性、低解码复杂性和增强恶意用户的安全性。拟议的研究将与葡萄牙和挪威大学的国际合作者协商进行，其成果不仅将有利于移动自组织架构，而且还将有利于相关系统，如宽带固定无线接入网络、机器对机器通信以及图像和视频处理。我们预计，我们在网络差错控制技术方面的工作将有助于加强英国的研究基础，并在将英国推向下一代移动技术领域的发展前沿方面发挥重要作用。

项目成果

Performance analysis of random linear network coding in two-source single-relay networks

• DOI: 10.1109/iccw.2015.7247305
• 发表时间: 2015-03
• 期刊: 2015 IEEE International Conference on Communication Workshop (ICCW)
• 作者: Amjad Saeed Khan;Ioannis Chatzigeorgiou

Conditions for Cooperative Transmission on Rayleigh Fading Channels

• DOI: 10.1109/vtcfall.2014.6965915
• 发表时间: 2014-12
• 期刊: 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)
• 作者: Ioannis Chatzigeorgiou

Resource-Allocation Frameworks for Network-Coded Layered Multimedia Multicast Services

• DOI: 10.1109/jsac.2014.2384231
• 发表时间: 2015-02-01
• 期刊: IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
• 影响因子: 16.4
• 作者: Tassi, Andrea;Chatzigeorgiou, Ioannis;Vukobratovic, Dejan
• 通讯作者: Vukobratovic, Dejan

Resource Allocation Frameworks for Network-coded Layered Multimedia Multicast Services

网络编码分层多媒体组播服务的资源分配框架

• DOI: 10.48550/arxiv.1411.5547
• 发表时间: 2014
• 作者: Tassi A

Performance assessment of fountain-coded schemes for progressive packet recovery

• DOI: 10.1109/csndsp.2014.6923913
• 发表时间: 2014-07
• 期刊: 2014 9th International Symposium on Communication Systems, Networks & Digital Sign (CSNDSP)
• 作者: Andrew L. Jones;Ioannis Chatzigeorgiou;Andrea Tassi