Research Article
Expectation Maximization for Multipath Detection in Wideband Signals
@INPROCEEDINGS{10.1007/978-3-319-72823-0_13, author={Salem Salem and Mohamed El-Tarhuni}, title={Expectation Maximization for Multipath Detection in Wideband Signals}, proceedings={5G for Future Wireless Networks. First International Conference, 5GWN 2017, Beijing, China, April 21-23, 2017, Proceedings}, proceedings_a={5GWN}, year={2018}, month={1}, keywords={Expectation Maximization Delay estimation Wideband signals}, doi={10.1007/978-3-319-72823-0_13} }- Salem Salem
Mohamed El-Tarhuni
Year: 2018
Expectation Maximization for Multipath Detection in Wideband Signals
5GWN
Springer
DOI: 10.1007/978-3-319-72823-0_13
Abstract
In this paper, a new technique for delay estimation of multipath components in wideband communication systems is proposed. The proposed scheme uses the Expectation Maximization algorithm at the output of an energy detector in order to separate the multipath components from the noise components. The proposed scheme provides comparable performance to the conventional scheme based on maximum energy detector in terms of detection probability. However, it has two major advantages over the conventional scheme that make it more attractive in practical applications. Firstly, the proposed scheme does not require prior knowledge of the number of multipath components; and, secondly, it does not need to use a threshold to decide on the presence or absence of multipath components.