Interference‐aware spectrum handover for cognitive radio networks
文献类型：期刊论文
| 作者 | Lu, Dianjie; Huang, Xiaoxia; Zhang, Weile; Fan, Jianping |
| 刊名 | WIRELESS COMMUNICATIONS & MOBILE COMPUTING
 |
| 出版日期 | 2014 |
| 英文摘要 | Cognitive radio (CR) is a promising technique for future wireless networks, which significantly improves spectrum utilization. In CR networks, when the primary users (PUs) appear, the secondary users (SUs) have to switch to other available channels to avoid the interference to PUs. However, in the multi-SU scenario, it is still a challenging problem to make an optimal decision on spectrum handover because of the the accumulated interference constraint of PUs and SUs. In this paper, we propose an interference-aware spectrum handover scheme that aims to maximize the CR network capacity and minimize the spectrum handoveroverhead by coordinating SUs' handover decision optimally in the PU-SU coexisted CR networks. On the basis of the interference temperature model, thespectrum handover problem is formulated as a constrained optimization problem, which is in general a non-deterministic polynomial-time hard problem. To address the problem in a feasible way, we design a heuristic algorithm by using the technique of Branch and Bound. Finally, we combine our spectrumhandover scheme with power control and give a convenient solution in a single-SU scenario. Experimental results show that our algorithm can improve the network performance efficiently. Copyright (C) 2012 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| 原文出处 | http://onlinelibrary.wiley.com/doi/10.1002/wcm.2273/epdf |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5996]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | WIRELESS COMMUNICATIONS & MOBILE COMPUTING |
| 推荐引用方式 GB/T 7714 | Lu, Dianjie,Huang, Xiaoxia,Zhang, Weile,et al. Interference‐aware spectrum handover for cognitive radio networks[J]. WIRELESS COMMUNICATIONS & MOBILE COMPUTING,2014. |
| APA | Lu, Dianjie,Huang, Xiaoxia,Zhang, Weile,&Fan, Jianping.(2014).Interference‐aware spectrum handover for cognitive radio networks.WIRELESS COMMUNICATIONS & MOBILE COMPUTING. |
| MLA | Lu, Dianjie,et al."Interference‐aware spectrum handover for cognitive radio networks".WIRELESS COMMUNICATIONS & MOBILE COMPUTING (2014). |
入库方式： OAI收割
来源：深圳先进技术研究院
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