摘要
研究了超宽带(UWB)干扰检测避免(DAA)流程,以解决UWB通信系统与现有无线通信系统之间的干扰问题。在已有的DAA流程方案基础上,通过简化参数和对特殊情况的重新考虑,提出了一种改进的DAA流程。仿真结果表明,对比原有DAA流程方案,通过合理选择参数阈值,改进方案在基本保持UWB传输效率的同时,得到了更好的干扰抑制效果,克服了原有方案在突发干扰误判情况下可能出现的长时间干扰问题,并降低了流程整体复杂度。
The ultra-wideband （UWB） detect and avoid （DAA） procedure was studied to suppress the interference between UWB and existing wireless narrowband systems. Through simplifying factors and taking some special situations into consideration, an improved DAA procedure was proposed based on the existing one. The simulation result shows that the new procedure has maintained UWB basic transmission efficiency, as well as reduced interference and complexity of parameters selection. It overcomes the problem of long-time interference caused by misjudgment of detection in the original procedure.
出处
《重庆邮电大学学报（自然科学版）》
北大核心
2010年第2期159-164,共6页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
北京交通大学科技基金重点项目资助(2006X2001)~~
关键词
UWB
DAA
流程
干扰时间比
传输效率
ultra-wideband （UWB）
detect and avoid （DAA）
procedure
interference time ratio
transmission efficiency
