Title :
Research on Channel Estimation in Multiband Ultra Wideband System Based on IML Algorithm
Author :
Zhang Xueyi ; Liang Jianhua ; Zhou Chunlin
Author_Institution :
Sch. of Electr. & Inf. Eng., Hunan Univ. of Technol., Zhuzhou, China
Abstract :
The short-range electric power communication system can use UWB (Ultra - Wideband: UWB) wireless communication technology.UWB communication has the advantages of the strong anti-multipath and anti-interference ability and the high rate,particularly potential applications in short-range multiple access wireless communications. The indoor multipath channel estimation technology is mainly researching based on multiband orthogonal frequency-division multiplexing ultra wideband.We propose two UWB channel estimation algorithms with training bits-ML algorithm and IML algorithm. The simulation results show that two algorithms can efficiently estimate channel parameters,but the IML algorithm has better performance than the ML algorithm in getting rid of multipath´s interference.
Keywords :
carrier transmission on power lines; channel estimation; interference suppression; multipath channels; ultra wideband communication; IML algorithm; UWB channel estimation algorithm; UWB wireless communication technology; antiinterference ability; antimultipath ability; indoor multipath channel estimation technology; multiband orthogonal frequency-division multiplexing; multiband ultra wideband system; multipath interference; short-range electric power communication system; short-range multiple access wireless communication; Algorithm design and analysis; Channel estimation; Interference; Maximum likelihood estimation; Multipath channels; OFDM; ML and IML algorithm; Multiband OFDM-UWB; channel estimation;
Conference_Titel :
Intelligent System Design and Engineering Applications (ISDEA), 2013 Third International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-4893-5
DOI :
10.1109/ISDEA.2012.396
