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| 基于认知的异构无线网络信道借用策略 | |
| 引用本文： | 李希金,纪红.基于认知的异构无线网络信道借用策略[J].北京邮电大学学报,2009,32(5):20-23. |
| 作者姓名： | 李希金 纪红 |
| 作者单位： | 泛网无线通信教育部重点实验室(北京邮电大学),北京,100876;泛网无线通信教育部重点实验室(北京邮电大学),北京,100876 |
| 基金项目： | 国家高技术研究发展计划项目，国家自然科学基金重点项目 |
| 摘 要： | 为解决频谱资源日益紧张的问题，基于IEEE802 11无线局域网（WLAN）和时分同步码分 多址(TD-SCDMA)技术构建的异构网络模型，考虑了异构无线网络下信道借用的条件， 提出了一种新的基于预测的信道垂直借用方案及其算法. 该算法在借鉴信道水平借用策略的基础上，引入信道预留机制并增加了信道借用预测算法. 仿真结果表明，该方案可有效降低呼叫 阻塞率，改善系统性能. |
| 关 键 词： | 异构无线网络 信道分配 信道借用 呼叫阻塞率 |
| 收稿时间： | 2009-2-19 |
| 修稿时间： | 2009-4-13 |
Cognitive Radio Based Channel Borrowing Scheme for Heterogeneous Wireless Networks |
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| LI Xi-jin,JI Hong.Cognitive Radio Based Channel Borrowing Scheme for Heterogeneous Wireless Networks[J].Journal of Beijing University of Posts and Telecommunications,2009,32(5):20-23. | |
| Authors: | LI Xi-jin JI Hong |
| Affiliation: | (Key Laboratory of Universal Wireless Communication （Beijing University of Posts and Telecommunications）, Ministry of Education, Beijing 100876, China) |
| Abstract: | A prediction algorithm based channel borrowing scheme on heterogeneous wireless network model composed of IEEE802.11 wireless local area network(WLAN) and time division-synchronous code division multiple access(TD-SCDMA)is proposed to solve the problem of spectrum shortage.The scheme refers to current horizontal channel borrowing strategy and proposes a channel reserved mechanism with channel borrowing prediction algorithm.Performance simulation shows that this scheme can efficiently decrease blocking proba... |
| Keywords: | heterogeneous wireless network channel allocation channel borrowing blocking probability |
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