Title
Reduced complexity satellite broadcast receiver with interference mitigation in correlated noise
Abstract
AbstractSummaryThe recent commercial trends towards using smaller dish antennas for satellite receivers and the growing density of broadcasting satellites necessitate the application of robust adjacent satellite interference cancellation schemes. This orbital density growth along with the wider beamwidth of a smaller dish have imposed an overloaded scenario at the satellite receiver, where the number of transmitting satellites exceeds the number of receiving elements at the dish antenna. To ensure successful operation in this practical scenario, we propose a satellite receiver that enhances signal detection from the desired satellite by mitigating the interference from neighboring satellites. Towards this objective, we propose an enhanced list‐based group‐wise search detection (E‐LGSD) receiver under the assumption of spatially correlated additive noise. To further enhance detection performance, the proposed satellite receiver utilizes a newly designed whitening filter to remove the spatial correlation among the noise parameters, while also applying a preprocessor that maximizes the signal‐to‐interference‐plus‐noise ratio. We exploit the structure of this filter and propose a reduced complexity LGSD (RC‐LGSD) receiver. Extensive simulations under practical scenarios show that the proposed receiver enhances the performance of satellite broadcast systems in the presence of adjacent satellite interference compared with existing methods. Also, under pointing error, RC‐LGSD exhibits similar behavior to that of the optimum receiver. View Figure Satellite receivers with small‐dish antennas are susceptible to increased adjacent satellites interference. To ensure successful operation in this practical scenario, we propose an iterative receiver that enhances signal detection from the desired satellite by mitigating the interference from neighboring satellites, assuming spatially correlated additive noise. Simulations under practical scenarios show that our receiver enhances the performance under adjacent satellite interference compared with existing methods. Moreover, under pointing error, our receiver exhibits a behavior similar to that of the optimum receiver.
Year
DOI
Venue
2018
10.1002/sat.1243
Periodicals
Keywords
Field
DocType
direct-to-home, geostationary satellites, interference mitigation, iterative receivers, multiple low noise blocks, spatial correlation
Broadcasting,Satellite,Spatial correlation,Computer science,Computer network,Real-time computing,Interference (wave propagation),Direct to home,Geostationary orbit
Journal
Volume
Issue
ISSN
36
5
1542-0973
Citations 
PageRank 
References 
0
0.34
9
Authors
4
Name
Order
Citations
PageRank
Zohair Abu-Shaban1505.91
Hani Mehrpouyan226827.93
Bhavani Shankar Mysore Rama Rao3266.76
Björn E. Ottersten46418575.28