Energy Efficient Cognitive Radio Networks

节能认知无线电网络

• 批准号: 262029-2013
• 负责人: Zhao, Dongmei
• 金额: $ 2.55万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=525465
• 关键词: Energy; Efficient; Cognitive; Radio; Networks

With the high demands and rapid evolution for wireless communications, energy consumption of wireless networks has escalated significantly, and become a major threat for environmental protection. Meanwhile, energy costs account for a significant portion of a mobile operator's operating expenses. Building energy efficient wireless communication systems has become an urgent need for sustainable development of wireless communication networks and services. Among various wireless communication techniques, cognitive radio networks (CRNs) have attracted a considerable amount of attentions from both the academia and industry. CRNs access the radio spectrum that is allocated but not fully utilized by other networks. Cognitive radio devices have the ability to sense the environment, adaptively adjust their work modes, and effectively provide various services. CRNs are expected to be very widely deployed in the near future to cope with the spectrum scarcity problem caused by the high demands for wireless communications and traditional fixed radio spectrum allocations. Currently, the work on CRNs mainly focuses on how to efficiently detect and utilize the available radio resources and to support various services. The objective of this project is to design and analyze performance of energy efficient CRNs. We will i) identify challenges and complexities raised by the secondary nature of the CRNs, ii) explore the intricate trade-offs between energy efficiency, data transmission performance, and implementations of CRNs for energy saving, and iii) take advantage of various diversities and opportunities brought by the built-in cognitive capabilities of CRN devices to achieve high energy efficiency. This research is of paramount importance for the proliferation of future wireless communication services and for protecting the environment we live in. The outcome of this research will contribute to providing wireless communication services that are both energy efficient and spectrum efficient. It will foster the progress of green wireless communications and further towards green telecommunications in Canada, which will have a long-term impact on the sustainable development of the Canadian society.

随着无线通信的高需求和快速发展，无线网络的能源消耗已大大升级，并成为环境保护的主要威胁。同时，能源成本占移动运营商运营费用的很大一部分。建立节能无线通信系统已成为无线通信网络和服务可持续发展的迫切需要。在各种无线通信技术中，认知无线电网络（CRN）吸引了学术界和工业的相当注意。 CRN访问已分配但未完全使用其他网络使用的无线电频谱。认知无线电设备具有感知环境，自适应调整其工作模式并有效提供各种服务的能力。预计CRN在不久的将来将非常广泛地部署，以应付由于对无线通信和传统固定无线电谱分配的高需求而引起的光谱稀缺问题。当前，CRN的工作主要关注如何有效地检测和利用可用的无线电资源并支持各种服务。该项目的目的是设计和分析节能CRN的性能。我们要）确定CRN的次要性质提出的挑战和复杂性，ii）探索能源效率，数据传输性能和CRN的实施之间的复杂权衡，以节省节能，以及III），利用各种多样性和优势CRN设备内置的认知能力带来的机会可以实现高能源效率。这项研究对于未来的无线通信服务的扩散和保护我们所生活的环境至关重要。这项研究的结果将有助于提供既节能又有效率的无线通信服务。它将促进绿色无线通信的进步，并进一步发展加拿大的绿色电信，这将对加拿大社会的可持续发展产生长期影响。