TCM with preswitching diversity in slow Rayleigh fading forward link
TCM with preswitching diversity in slow Rayleigh fading forward link
复制标题
慢瑞利衰落前向链路中具有预切换分集的 TCM
DOI：
10.1049/el:19951473
复制
发表时间：
1995
影响因子：
1.1
通讯作者：
Han
中科院分区：
文献类型：
--
作者：
Y. Hahm;G. Jung;Y. Kim;Han
在非常慢的衰落信道中，具有有限交织器尺寸的网格编码调制的性能会下降。在这种情况下，天线分集是有效的。然而，在个人通信系统中，手机的有限尺寸和复杂性使得在手机处实现分集变得困难。作者提出了一种通过在前向链路中切换基站天线来获得交织效果的方案，无需在小型手机中添加额外的软件或硬件。计算机仿真表明该方案在慢衰落前向链路中具有显着的性能增益。
The performance of trellis-coded modulation with finite interleaver size degrades in a very slow fading channel. In this case antenna diversity is effective. In personal communication systems, however, the limited size and complexity of the handset make diversity implementation at the handset difficult. The authors propose a scheme for obtaining interleaving effects by switching base station antennas in a forward link, without additional software or hardware in a small handset. Computer simulation shows that this scheme has significant performance gain in a slow fading forward link.