| 摘要: |
| 认知无线电网络被认为是实现动态频谱共享、缓解频谱资源紧缺的重要途径。喷泉码能有效抵抗认知无线电网络中来自主用户的突发干扰，且无需反馈重传，从而为认知无线电网络提供了一种有效的信道编码方案。首先简介了数字喷泉码以及认知无线电网络基础知识，然后综述了数字喷泉码在认知无线电网络的链路建立、认知通信以及在资源分配中的应用现状，最后指出了在这一研究领域中需要解决的问题，并展望了发展前景。 |
| 关键词: 认知无线电网络 喷泉码 链路建立 认知通信 资源分配 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（61371125） |
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| Application of fountain code in cognitive radio network |
| YAO Weiqing,YI Benshun |
| () |
| Abstract: |
| Cognitive radio technology has been recognized as an optimal solution to dynamic spectrum sharing and the low spectrum utilization. Fountain codes can effectively resist sudden interference from primary users(PUs) in cognitive radio network,without feedback retransmission,which provides an effective channel coding scheme for cognitive radio network. First,the principles of digital fountain codes and cognitive radio network are introduced. Then the applications of the digital fountain codes in link setup,cognitive communication and resource allocation for the cognitive radio network are surveyed. Finally,some unsolved problems in this research field are pointed out,and the future development is discussed. |
| Key words: cognitive radio network fountain codes link setup cognitive communication resource allocation |
