Burst-Interference Suppression Based on Space-Time Processing

Autor: Huiliang Wang, Weile Zhang, Yinghao Ge
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: IEEE Access, Vol 6, Pp 2712-2719 (2018)
Druh dokumentu: article
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2017.2784901
Popis: Burst-interference suppression is quite challenging and of great importance to wireless communications, but is rarely investigated in the current literature. In this paper, a novel approach based on space-time processing is proposed for the burst-interference suppression. First, part of the conventional centralized training sequence is scattered and evenly embedded into the transmitted data sequence. In this way, the unexpected burst interference has a much higher possibility to contaminate the training sequence, as compared with the conventional centralized one. Next, we can exploit the burst-interference information contained in the received scattered pilot to adaptively compute the optimal space-time weighting coefficients (STWC) under the weighted minimum mean square error criterion. The STWC are then used to perform the space-time filtering on the received data sequence to suppress interference as well as recover the transmitted data symbols. Simulation results show that our proposed method can effectively mitigate the influence of burst interference.
Databáze: Directory of Open Access Journals