| Reuse Partitioning-Based Frequency Assignment in Fixed Two-Hop Relay Cellular Network |
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| 作者姓名： | 刘涛 戎蒙恬 史宏逵 |
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| 作者单位： | Department of Electronic Engineering Shanghai Jiaotong University，Department of Electronic Engineering Shanghai Jiaotong University，Department of Electronic Engineering Shanghai Jiaotong University，Shanghai 200030 China，Shanghai 200030 China，Shanghai 200030 China |
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| 基金项目： | 国家重点科技研究发展项目 |
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| 摘 要： | Future mobile wireless communicationsystems demandhigh data rates and spectral efficiency in addition to ubiq-uitous coverage . To simultaneously meet these require-ments , a frequency band with higher central frequency(well above 2 GHz) has to be conside…
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| 关 键 词： | 继电器 无线电 电子网络 隔离物 |
| 修稿时间： | 2007-01-16 |
Reuse Partitioning-Based Frequency Assignment in Fixed Two-Hop Relay Cellular Network |
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| LIU Tao,RONG Mengtian,SHI Hongkui.Reuse Partitioning-Based Frequency Assignment in Fixed Two-Hop Relay Cellular Network[J].Transactions of Tianjin University,2007,13(3):220-225. |
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| Authors: | LIU Tao RONG Mengtian SHI Hongkui |
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| Institution: | Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | In relay cellular network, relay links will consume extra frequency resources, which makes radio resource allocation become more complex and important. A new frequency allocation scheme is proposed to increase cell capacity and improve signal-to-interference ratio (SIR) of users located at cell edges. By dividing cell into different parts and configuring each of these parts with a unique reuse factor, this scheme improves spectral utilization efficiency and avoids inter-cell interference effectively. Optimal combinations of reuse factors and locations of relay nodes are also addressed and investigated. Computer simulation results show that, by employing the proposed scheme, maximum cell capacity gains of about 50%, 35% and 30% can be achieved in comparison with conventional cellular network scheme, traditional reuse partitioning scheme and reuse-adjacent-cell-frequencies scheme, respectively. Moreover, since in the proposed scheme resources are dynamically allocated among relay nodes, more benefits can be obtained in comparison with fixed resource allocation schemes under non-uniform traffic distribution. |
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| Keywords: | reuse partitioning fixed relay node relay cellular network radio resource allocation |
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