| Ka频段ATC-OFDM传输体制的性能分析 |
| |
| 引用本文： | 王艳岭,达新宇,谢铁城,申勇.Ka频段ATC-OFDM传输体制的性能分析[J].东北重型机械学院学报,2010(6):533-536,541. |
| |
| 作者姓名： | 王艳岭 达新宇 谢铁城 申勇 |
| |
| 作者单位： | 空军工程大学电讯工程学院,陕西西安710077 |
| |
| 基金项目： | 国家自然科学基金资助项目（60802053）; 陕西省自然科学基金资助项目（2009JM8001-3） |
| |
| 摘 要： | 分析了Ka频段移动信道特性,建立了Ka频段自适应Turbo编码-OFDM传输体制（ATC-OFDM）,并提出了3种自适应方案和相应算法。通过新传输体制中的自适应功率、自适应调制和自适应功率调制同固定分配功率和调制方案的TC-OFDM传输体制相比,在不同的天气环境下,其系统误码性能有着明显的改善。系统的吞吐量在信噪比大于8dB时,相比于BPSK调制,可提高2bps/Hz,验证了该传输体制的可行性和有效性。
|
| 关 键 词： | Ka频段 信道模型 自适应 Turbo码 正交频分复用 |
Performance analysis of ATC-OFDM transmission scheme at Ka band |
| |
| Authors: | WANG Yan-ling DA Xin-yu XIE Tie-cheng SHEN Yong |
| |
| Affiliation: | (Telecommunication Engineering Institute,Air Force Engineering University,Xi＇an,Shaanxi 710077,China) |
| |
| Abstract: | The mobile channel characteristic of the Ka band is analyzed in this paper.The ATC-OFDM transmission scheme and three algorithms at Ka band are also proposed.Compared with the fix power and modulation in TC-OFDM transmission scheme,the adaptive power,adaptive modulation and adaptive power-modulation in the new transmission scheme could reduce BER significantly in different environmental conditions.Compared with the fix BPSK modulation,the throughput of the new transmission scheme can increase 2 bps/Hz when the SNR is bigger than 8 dB,so that the feasibility and validity of the new transmission scheme can be testified. |
| |
| Keywords: | Ka band channel model adaptive turbo code OFDM |
| 本文献已被 维普 等数据库收录！ |
|
