• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Distributed and Parallel Systems >Fading Analysis Of Mimo Based Mobile Adhoc Networks
【24h】

Fading Analysis Of Mimo Based Mobile Adhoc Networks

机译：基于Mimo的移动自组织网络的衰落分析

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

MIMO technologies are beneficial for Mobile ad-hoc networks by providing the diversity and capacity advantage as well as spatial degree of freedom in designing MAC protocol. The integration of MIMO technology in the area of mobile ad-hoc network has great attenuation in commercial and military application. Most important event in wireless communication is the advent of MIMO technologies which uses multiple antennas to coherently resolve more information than single antenna [1,2,3]. The use of multiple antennas increases the data rate in wireless network. The use of multiple antennas causes the amplitude and phase fluctuation and time delay in the received signal, which causes fading of the signal [4,5]. Again the nodes are moving randomly that leads to a frequency shift of the arriving signal. We have studied the MIMO mobile ad-hoc network’s received signal assuming the flat Raleigh fading and considering the Doppler shift due to the continuous movement of the mobile nodes. Some parameters will come into consideration when we studied about MIMO Mobile ad-hoc network i.e. Average Fade Duration (AFD), Level Crossing Rate (LCR). In this paper we shall discuss the different fading channels and show some simulated results for Doppler spectrum at variation of Doppler shift (i.e. direction of motion of the antenna) with respect to Power Spectral Density. And some comparison study of AFD and LCR is done with MIMO Mobile ad-hoc network and ordinary ad-hoc network.
机译：MIMO技术通过在设计MAC协议时提供多样性和容量优势以及空间自由度，对移动自组织网络非常有用。 MIMO技术在移动自组织网络领域的集成在商业和军事应用中具有很大的衰减。无线通信中最重要的事件是MIMO技术的出现，该技术使用多个天线相干地解析比单个天线[1,2,3]更多的信息。使用多个天线可提高无线网络中的数据速率。使用多个天线会引起接收信号的幅度和相位波动以及时间延迟，从而导致信号衰落[4,5]。节点再次随机移动，导致到达信号的频移。我们已经研究了MIMO移动自组织网络的接收信号，并假设其平坦的Raleigh衰落并考虑了由于移动节点的连续移动而引起的多普勒频移。当我们研究MIMO移动自组织网络时，将考虑一些参数，即平均衰落持续时间（AFD），电平交叉速率（LCR）。在本文中，我们将讨论不同的衰落信道，并针对多普勒频移（即天线的运动方向）相对于功率谱密度的变化给出多普勒频谱的一些仿真结果。并利用MIMO Mobile ad-hoc网络和普通ad-hoc网络对AFD和LCR进行了比较研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号