| MIMO-OFDM系统中最大化速率的自适应算法 |
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| 引用本文： | 杨爱敏,张梅.MIMO-OFDM系统中最大化速率的自适应算法[J].无线电通信技术,2012,38(1):16-20. |
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| 作者姓名： | 杨爱敏 张梅 |
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| 作者单位： | 北京劳动保障职业学院,北京,100029 |
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| 摘 要： | 针对现有贪婪算法应用的高复杂性,提出了一种在误比特率(BER)和功率一定的前提下,最大化传输速率的低复杂度比特和功率分配算法。对系统模型和贪婪算法进行了简要介绍,对贪婪算法和新提出的算法进行了仿真,通过仿真结果可以看出,新提出的算法不仅满足系统的误比特率要求,在传输速率上和贪婪算法几乎相同,但却大大地降低了计算复杂度。
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| 关 键 词： | 贪婪算法 计算复杂度 比特和功率算法 |
New AM Algorithm of Maximizing Transmit Rate for MIMO-OFDM Systems |
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| YANG Ai-min,ZHANG Mei.New AM Algorithm of Maximizing Transmit Rate for MIMO-OFDM Systems[J].Radio Communications Technology,2012,38(1):16-20. |
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| Authors: | YANG Ai-min ZHANG Mei |
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| Affiliation: | ( Beijing Vocational College of Labor and Social Security, Beijing 100029, China) |
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| Abstract: | Because of the high complexity of the greedy algorithm, a low-complexity bit and power allocation algorithm under the condition of certain BER and power is proposed in the paper. Firstly the system model and greedy algorithm is introduced, and then simulation results about the proposed algorithm and the greedy are given. The performances of the proposed algorithm and greedy algorithm are almost the same, while the computational complexity of the proposed algorithm is much lower than that of the greedy algorithm. |
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| Keywords: | greedy algorithm computational complexity bit and power allocation algorithm |
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