Ad hoc物理层关键问题的探讨  

Discussions about Ad Hoc Physical Layer Key Problems

作　　者：吴昊[1] 李承恕[1] 

机构地区：[1]北京交通大学现代通信研究所,北京100044

出　　处：《无线通信技术》2006年第3期16-19,共4页Wireless Communication Technology

基　　金：国家自然科学基金(No.60372093);北京交通大学校基金项目(No.2004SM003)

摘　　要：A d hoc网络一般都是基于无线通信的,同样需要解决衰落、多径干扰、功率控制等无线通信经常遇到的问题。本文针对A d hoc网络中物理层的若干关键问题进行了探讨,包括选择和参考的标准,M IMO、OFDM、UW B、软件无线电等与物理层有关的新技术以及物理层模型对其他层的影响。Ad hoc networks generally are based on wireless communication, so they also need to solve those problems that are often meet in wireless communication, such as fading, muhipath interference, and power control. This paper will mainly discuss some key problems of the physical layer in ad hoc networks, including standard, MIMO, OFDM, UWB, software radios and other new techniques related to physical layer. The impact of physical model to other layers is also described in this paper.

关 键 词：AD HOC 物理层 MIMO OFDM UWB 软件无线电 

分 类 号：TN929.5[电子电信—通信与信息系统]