| Resource allocation based on subcarrier grouping in OFDMA cognitive radio networks | |
| Shen, Yanyan; Kwak,Kyung Sup; Wang,Shuqiang | |
| 2014 | |
| 会议名称 | 14th International Symposium on Communications and Information Technologies, ISCIT 2014 |
| 会议地点 | Incheon |
| 英文摘要 | In this paper, we investigate the subcarrier grouping based resource allocation in orthogonal frequency division multiple access cognitive radio networks. The objective is to maximize the secondary user's minimal transmission rate, while taking into account the subcarrier grouping constraint, subcarrier allocation constraint, power allocation constraint, and the interference power constraint. The problem is formulated as a mixed integer programming problem. It can be solved by the exhaustive searching method, which has an exponential complexity. In order to decrease the computation complexity, a suboptimal fast algorithm will be developed. The suboptimal algorithm solves the subcarrier allocation and power allocation separately. By exploiting the structure of the problem, a fast power allocation algorithm based on the barrier method is proposed. Simulations have been done to verity the performance of the proposed algorithm. © 2014 IEEE.(6 refs) |
| 收录类别 | EI |
| 语种 | 英语 |
| 内容类型 | 会议论文 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/6064]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2014 |
| 推荐引用方式 GB/T 7714 | Shen, Yanyan,Kwak,Kyung Sup,Wang,Shuqiang. Resource allocation based on subcarrier grouping in OFDMA cognitive radio networks[C]. 见:14th International Symposium on Communications and Information Technologies, ISCIT 2014. Incheon. |
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