Resource Management in Cognitive Radio-based Virtualized Heterogeneous Wireless Access Networks

基于认知无线电的虚拟化异构无线接入网络中的资源管理

• 批准号: RGPIN-2015-05199
• 负责人: Agarwal, Anjali
• 金额: $ 1.6万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=643528
• 关键词: Resource; Management; Cognitive; Radio; based

Next generation wireless systems (Fifth generation (5G)) are being developed with the vision of heterogeneity in which a mobile user/device will be able to connect to multiple wireless networks. However, since the available bands in each node vary from location to location, and network to network, managing resources becomes particularly challenging in a multi-hop transmission scenario. Resource allocation and network selection in heterogeneous wireless access networks (HWAN), based on the cognitive capability of that network, fast and efficient vertical handoff mechanisms, and provisioning of QoS are some of the major research issues related to the development of HWANs.****Pricing mechanisms for packet data services do not consider the interactions among the multiple WANs. A WAN should dynamically adapt the service price offered to another wireless access network based on its revenue and network load, such that it can successfully compete with other wireless access networks. Resource allocation and the construction of the multi-network selection therefore depends on the price offered through the different heterogeneous network domains. The spectrum trading paradigm of cognitive networks imposes additional research challenges of specifying the size and the price of the offered spectrum to maximize the profit of its licensed users while maintaining their QoS and protecting their rights for exclusive usage of spectrum and assuring the QoS for unlicensed users.****Virtualization of wired networks being the leading trends, little has been discussed in infrastructure based wireless networks, which is an active area of interest to both the industry and the academia as it has the potential to improve resource utilization and create new services. Virtualized HWAN will provide one possible solution to simplify resource management and spectrum sharing - virtualization at the base station level to support multiple heterogeneous physical and MAC layer standards, virtualization at the network level to optimize the network resource allocations, and cross-domain heterogeneous wireless access network for overall network revenue subject to the QoS constraints in the individual access networks. ****Therefore, this proposal will attempt to elaborate and address key research challenges and problems related to the design and operation of efficient resource management in the virtualized cognitive radio-based heterogeneous wireless access network, focusing on the real-time traffic demand that requires continuous end-to-end QoS and maximizes profits across multiple heterogeneous network domains. The proposed research will be instrumental in heterogeneous wireless access networks and first of its kind from the service providers' perspective for optimizing the overall network revenue and supporting QoS-based multimedia applications.**

下一代无线系统（第五代 (5G)）的开发旨在实现异构性，其中移动用户/设备将能够连接到多个无线网络。然而，由于每个节点中的可用频带因位置和网络而异，因此在多跳传输场景中管理资源变得特别具有挑战性。异构无线接入网络 (HWAN) 中基于网络认知能力的资源分配和网络选择、快速高效的垂直切换机制以及 QoS 的配置是与 HWAN 发展相关的一些主要研究问题。** **分组数据服务的定价机制不考虑多个WAN 之间的交互。广域网应根据其收入和网络负载动态调整向另一个无线接入网络提供的服务价格，以便能够成功地与其他无线接入网络竞争。因此，资源分配和多网络选择的构建取决于通过不同异构网络域提供的价格。认知网络的频谱交易范式带来了额外的研究挑战，即指定所提供频谱的大小和价格，以最大化其许可用户的利润，同时维持其服务质量并保护其独占使用频谱的权利，并确保未许可用户的服务质量.****有线网络虚拟化是主要趋势，但基于基础设施的无线网络却很少被讨论，这是业界和学术界都感兴趣的一个活跃领域，因为它有潜力提高资源利用率并创造新的网络。服务。虚拟化HWAN将为简化资源管理和频谱共享提供一种可能的解决方案——基站级虚拟化支持多种异构物理层和MAC层标准、网络级虚拟化优化网络资源分配以及跨域异构无线接入整体网络收入受各个接入网络的 QoS 限制。 ****因此，本提案将尝试阐述和解决与基于虚拟化认知无线电的异构无线接入网络中高效资源管理的设计和操作相关的关键研究挑战和问题，重点关注实时流量需求需要持续的端到端 QoS 并跨多个异构网络域实现利润最大化。拟议的研究将有助于异构无线接入网络，并且从服务提供商的角度来看，它在优化整体网络收入和支持基于 QoS 的多媒体应用方面尚属首次。**