Signals of Interest Recovery With Multiple Receivers Using Reference-Based Successive Interference Cancellation for Signal Collection Applications

Download
Author
Romero, Ric A.
Rios, Alexander
Ha, Tri T.
Date
2014-08-08Metadata
Show full item recordAbstract
In this paper, we introduce a novel but intuitive scheme to recover multiple signals of
interest (SoI) from multiple emitters in signal collection applications such as signal intelligence, electronic
intelligence, and communications intelligence. We consider a case where the SoIs form a heavy interfer-
ence environment. The scheme, which is referred to as reference-based successive interference cancel-
lation (RSIC), involves a combination of strategic receiver placement and signal processing techniques.
The scheme works by placing a network of cooperative receivers where each receiver catches its own SoI
(despite multiple interferences). The rst receiver demodulates the initial SoI (called a reference signal)
and forwards it to the second receiver. The second receiver collects a received signal containing the second
SoI but is interfered with by the initial SoI, which is a problem called co-channel interference in cellular
communications. Unfortunately, the amplitude scaling of the interference is unknown in the second receiver
and therefore has to be estimated via least squares error. It turns out that the estimation requires a priori
knowledge of the second SoI, which is the very signal it tries to demodulate, thereby yielding a Catch-22
problem. We propose using an initial guess on the second SoI to form an amplitude estimate such that the
interference is subtracted (cancelled) from the collected measurement at the second receiver. The procedure
is applied to a third receiver (or multiple receivers) until the last of the desired SoI is separated from all of the
co-channel interferences. The RSIC scheme performs well. Using quaternary phase shift keying as example
modulation, we present major symbol error rate (SER) performance improvements with the use of RSIC
over the highly degraded SER of receivers that are heavily interfered and do not employ any cancellation
technique.
Description
The article of record as published may be found at http://dx.doi.org/10.1109/ACCESS.2014.2340874
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
Related items
Showing items related by title, author, creator and subject.
-
Detection of a low power communication signal in the presence of a strong co-channel TV broadcast interference using Kalman filter
Sajid, Attique (Monterey, California: Naval Postgraduate School, 2014-12);This research focuses on the detection of a low power communication signal in the presence of a strong co-channel television broadcast interference signal. The presence of strong co-channel interference makes the recovery ... -
Parameter estimation and modeling of interference cancellation technique for multiple signal recovery
Rios, Alexander (Monterey, California. Naval Postgraduate School, 2013-06);In this thesis, the amplitude gain of received quadrature phase shift keying (QPSK) signals and interferences are estimated via the least squares error method in order to facilitate the implementation of reference-based ... -
Pulse Detonation Engine Characterization and Control Using Tunable Diode-Laser Sensors
Mattison, Daniel W.; Brophy, Christopher M.; Sanders, Scott T.; Ma, Lin; Hinckley, Kevin M.; Jeffries, Jay B.; Hanson, Ronald K. (2003);One of the phenomena limiting the performance of pulse detonation engines (PDEs) is detonation failure due to pulse-to-pulse interference. To better understand and control such interferences, two novel laser diagnostic ...