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| QoS保证的多信道混合接入CRN频谱共享策略设计 | |
| 引用本文： | 王凡,姚富强,赵杭生,冯少栋,张建照. QoS保证的多信道混合接入CRN频谱共享策略设计[J]. 电路与系统学报, 2012, 17(2): 76-83 |
| 作者姓名： | 王凡 姚富强 赵杭生 冯少栋 张建照 |
| 作者单位： | 1. 解放军理工大学通信工程学院,江苏南京,210007;总参第六十三研究所,江苏南京210007;中国人民解放军73682部队,江苏徐州,221006 2. 总参第六十三研究所,江苏南京,210007 3. 解放军理工大学通信工程学院,江苏南京,210007;中国人民解放军96610部队,北京102208 4. 解放军理工大学通信工程学院,江苏南京,210007;总参第六十三研究所,江苏南京210007 |
| 基金项目： | 国家自然科学基金资助项目(61072077) |
| 摘 要： | 根据既不对主用户(Primary Radio user,PR)产生干扰,又对认知无线电用户(Cognitive Radio user,CR)提供QoS保证的原则,将认知无线电网络(Cognitive Radio Network,CRN)中多信道接入频谱共享问题建模为混合整数非线性规划。采用多级功率限制保证PR不被干扰,以CR物理层能够提供的速率作为信道和功率分配的依据,提出将能够为CR提供最大传输速率的信道分配给该CR的分配策略,将混合整数非线性规划转化为整数线性规划,并给出集中式启发算法和基于功率速率比(Power Rate Ratio,PRR)最小的分布式启发算法求解该整数线性规划。仿真结果表明,文中给出的算法能够提供较高的CRN吞吐量和较好的CR用户QoS保证。 |
| 关 键 词： | 认知无线电 频谱共享 多信道接入 QoS保证 整数线性规划 |
QoS guaranteed spectrum sharing strategy in multi-channel hybrid spectrum access CRN |
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| WANG Fan , YAO Fu-qiang , ZHAO Hang-sheng , FENG Shao-dong , ZHANG Jian-zhao. QoS guaranteed spectrum sharing strategy in multi-channel hybrid spectrum access CRN[J]. Journal of Circuits and Systems, 2012, 17(2): 76-83 | |
| Authors: | WANG Fan YAO Fu-qiang ZHAO Hang-sheng FENG Shao-dong ZHANG Jian-zhao |
| Affiliation: | 1,2(1.Institute of Communications Engineering,PLA University of Science and Technology,Nanjing 210007,China; 2.The 63rd Research Institute of the General Staff,Nanjing 210007,China; 3.Troop NO.73682 of PLA,Xuzhou 221006,China;4.Troop NO.96610 of PLA,Beijing 102208,China) |
| Abstract: | With interfere-free to primary radios and QoS guarantee to cognitive radios(CR),the spectrum sharing problem in multi-channel hybrid spectrum access cognitive radio network(CRN) is modeled as a mixed integer nonlinear programming.Rate that CR can provide are made the criteria for channel and power allocation,the strategy that allocate the channel that CR can provide the highest rate to the very CR is introduced.Based on the proposed strategy,the channel and power allocation problem is transformed to an integer programming.In order to decrease the compute complexity,a centralized heuristic algorithm and a power rate ratio(PRR) based distributed heuristic algorithm is proposed to tackle the integer programming.Simulation results show that the proposed algorithms produce better performance in terms of CRN throughput and QoS guarantee rate. |
| Keywords: | cognitive radio spectrum sharing multiple channel access QoS guarantee integer linear programming |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |