| 摘要: |
| 首先给出了一种基于扇区化（Sectorizing）技术的OFDM蜂窝模型。该蜂窝模型利用定向天线的方向性特点，通过在小区内合理地分配频谱资源，减轻小区间的同频干扰，提高基站和移动终端间传输信号的载干比，从而提高网络总容量。然后将两种应用于全向天线蜂窝网络中的基于下行链路的小区选择模型应用在了该模型上，并通过仿真给出了性能分析结果。 |
| 关键词: 正交频分复用 无线蜂窝 小区选择 扇区划分 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:October 08, 2005Revised:January 25, 2006 |
| 基金项目:国家高技术研究发展计划(863计划);国家自然科学基金 |
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| Cell Selection Algorithms for OFDM Sectoring-based Cellular Wireless Network |
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| Abstract: |
| A cell sectorizing pattern based on OFDM cellular wireless network is proposed.Taking advantage of directivity of the directional antenna,through appropriate channel assignments this pattern is able to reduce the inter-cell co-channel interference,enhance the carrier to interference ratio(CIR) between base station and mobile unit and increase capacity of the network when the frequency reuse factor is close to 1.On the basis of this pattern,two different cell selection algorithms are described and their performance is analysed.Finally the simulation results are given. |
| Key words: orthogonal frequency division multiplexing(OFDM),wireless cellular network,cell selection,sectorizing |
