| Spatio-Temporal Population Density and Spatial Dynamic Spectrum Allocation |
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| 作者姓名： | Muhammad Qadeer Sharif Reza Ghazizadeh 范平志 |
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| 作者单位： | School of Information Science and Technology Southwest Jiaotong University，School of Information Science and Technology Southwest Jiaotong University，School of Information Science and Technology Southwest Jiaotong University，Chengdu 610031 China，Chengdu 610031 China，Chengdu 610031 China |
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| 基金项目： | The National High-Tech Research and Development Program of China ( No.2005AA123950)，the National Science Foundation of China (No.90604035) |
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| 摘 要： | Introduction The scarcity of available radio spectrum limits theextension of the modern wireless communication. Oneapproach to alleviate this limitation is the dynamicspectrum allocation (DSA) at network level, which isable to adapt to the spatial and temporal variation intraffic load1]. The concept of DSA was first presentedin the DARPA (Defense Advanced Research ProjectsAgency) XG Program2], with the aim to increase thespectral efficiency by spectrum sharing among radios.Due to the…
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| 关 键 词： | 动力光谱分配 群体密度-距离 信息技术 无线电通信 |
| 文章编号： | 1005-2429（2007）04-0277-11 |
| 修稿时间： | 2007-05-22 |
Spatio-Temporal Population Density and Spatial Dynamic Spectrum Allocation |
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| Muhammad Qadeer Sharif,Reza Ghazizadeh,Fan Ping-zhi.Spatio-Temporal Population Density and Spatial Dynamic Spectrum Allocation[J].Journal of Southwest Jiaotong University,2007,15(4):277-287. |
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| Authors: | Muhammad Qadeer Sharif Reza Ghazizadeh Fan Ping-zhi |
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| Institution: | School of Information Science and technology,Southwest Jiaotong University,Chengdu,610031,China |
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| Abstract: | A realistic population density distribution scenario in conjunction with the spatial dynamic spectrum allocation (DSA) is taken into account to mitigate the spectrum wastage in terms of extra guard bands. For the insertion of the extra guard bands, an efficient strategy based on self-assessment is applied to each victim cell individually and independently. Consequently, it is no more required to spread the extra guard band over the whole DSA region. Simulation results show an improvement of 3%-4% in percentage of satisfied users for Universal Mobile Telecommunications System (UMTS) network and 4%-5% for Digital Video Broadcasting Terrestrial (DVB-T) network. |
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| Keywords: | dynamic spectrum allocation (DSA) spatial DSA spectrum sharing population density-distance |
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