Power- and bandwith-efficient relay-assisted communications

功率和带宽高效的中继辅助通信

• 批准号: 327681-2011
• 负责人: ShahbazPanahi, Shahram
• 金额: $ 2.91万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=572098
• 关键词: Power; bandwith; efficient; relay; assisted

As estimated by the European Commission, the total annual energy consumed by broadband technologies (to provide access to homes) will soon approach 50,000,000,000 KWh (or 50 TWh), out of which 70% is consumed in homes, twice as much energy as spent in servers and across the networks [1]. Taking into account that network data rates are expected to almost double every one and a half years, the power consumption for broadband access technologies and the associated costs are rising exponentially. Driven by these facts, we expect significant changes to occur in the way we communicate today: we are moving from wire-line to wireless access at an exponential rate. As information and communication technologies are driving engines for our society, the profound impacts of such changes are inevitable. Currently, our wireless infrastructure has a rather rigid architecture where communication resources, such as transmit power and radio spectrum at a certain location, are left unused if the user devices are not utilizing these resources to their fullest extent. As such, our wireless networks appear highly inefficient due to its non-dynamic resource allocation strategy. Thus, it becomes very expensive to keep up with the ever increasing demand of ``communicating anywhere anytime''. Alternative network architecture is based on collaboration between different user devices in the network. In co-operative networks, the user devices participate in a collaborative communication strategy to forward/route a message originated from one of these devices and deliver it to the intended destination. Such networks are often called ad-hoc relay networks. While the design of relay networks is still in its infancy, it is essential to consider resource (power and radio spectrum) restrictions at this early stage of the network design to ensure that future relay networks will make highly-efficient use of the available resources, thus providing sustainable communication services to our society. The time to develop ``green networks'' of the future is now and that is what this research focuses on.

据欧盟委员会估计，宽带技术（提供家庭接入）每年消耗的总能源将很快接近50，000，000，000 KWh（或50 TWh），其中70%用于家庭，是服务器和整个网络消耗的能源的两倍[1]。考虑到网络数据速率预计几乎每一年半翻一番，宽带接入技术的功耗和相关成本呈指数级上升。在这些事实的推动下，我们预计今天的通信方式将发生重大变化：我们正以指数级速度从有线接入转向无线接入。由于信息和通信技术是我们社会的驱动引擎，这些变化的深刻影响是不可避免的。目前，我们的无线基础设施具有相当严格的架构，其中如果用户设备没有最大限度地利用通信资源（诸如在某个位置处的发射功率和无线电频谱），则这些资源被闲置。因此，我们的无线网络由于其非动态资源分配策略而显得非常低效。因此，跟上"随时随地通信“的日益增长的需求变得非常昂贵。 替代网络架构基于网络中不同用户设备之间的协作。在协作网络中，用户设备参与协作通信策略以转发/路由源自这些设备之一的消息并将其递送到预期目的地。这样的网络通常被称为ad-hoc中继网络。虽然中继网络的设计仍处于起步阶段，但在网络设计的早期阶段就必须考虑资源（功率和无线电频谱）限制，以确保未来的中继网络能够高效利用可用资源，从而为我们的社会提供可持续的通信服务。现在是开发未来"绿色网络“的时候了，这也是本研究的重点。