| 摘要: |
| 介绍了多用户MIMO-OFDM系统中的Hungarian子载波分配算法，然后针对其计算复杂度过高的缺陷，提出一种局部最优的子载波分配算法，并与Hungarian子载波分配算法进行仿真比较。结果表明，该算法使系统总数据速率仅下降1．7％，而其计算复杂度却大幅减小，提高了资源分配的效率，符合高速无线系统资源实时分配的要求。 |
| 关键词: 多输入多输出 正交频分复用 子载波分配 分配效率 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:September 13, 2005Revised:January 10, 2006 |
| 基金项目:国家自然科学基金;国家自然科学基金 |
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| Rate Adaptive Resource Allocation Algorithm for Multi-user MIMO-OFDM Systems |
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| Abstract: |
| This paper introduces the main thought of Hungarian subearrier allocation algorithm in multi - user MIMO -OFDM systems, and then puts forward a partial -optimal subcarrier allocation algorithm to reduce the computation complexity and makes a comparison with Hungarian algorithm. Simulation results show that the computation complexity is decreased greatly while the total data - rate is lessened slightly. The resource allocation efficiency is improved, which meets the demand of real - time allocation of high rate wireless systems. |
| Key words: multiple-input multiple-output(MIMO),orthogonal frequency division multiplexing(OFDM),subcarrier allocation,allocation efficiency, |
