Resource allocation scheme for multi-cell cognitive radio Ad-Hoc networks

被引：0
作者：
Kuo, Yonghong [1 ]
Yang, Jianghong [1 ]
Chen, Jian [1 ]
机构：
[1] School of Telecommunication Engineering, Xidian Univ.
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2014年 / 41卷 / 03期
关键词：
Cognitive radio Ad-Hoc networks; Frequency reuse; Multi-cell scenarios; Resource allocation; Token ring;
D O I：
10.3969/j.issn.1001-2400.2014.03.012
中图分类号：
学科分类号：
摘要：
A resource allocation scheme for the cognitive radio Ad-Hoc network, which is collocated with the multi-cell primary radio network, is proposed based on the hierarchical channel access model. In this case, different primary cells can utilize some parts of the whole spectrums in terms of the reuse factor. Available bands are divided by the secondary system in line with the reused area and different access modes are developed according to the spectrum division. The proposed transmission profit parameter combining the transmission requirement with the interference constraint is used for channel allocation and the secondary system uses the Lagrange duality theory to implement power allocation. The Token Ring is introduced to realize local information exchange for the Ad-Hoc link. Simulation results show that, with the same performance metrics, the proposed algorithm can achieve 20% improvement on the overall throughput compared to the non-reuse-based cognitive scenario.
引用
收藏
页码：79 / 87
页数：8
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