Paper Info
Title
Temporal Synchronization of MIMO Wireless Communication in the Presence of Interference
Abstract
In wireless communications systems that potentially operate in interference, acquisition and temporal alignment of a transmitted signal by a receiver can be the most fragile component of the link. In this paper, synchronization detection in the presence of interference for multiple-input multiple-output (MIMO) communication is discussed. Here, synchronization indicates signal acquisition and timing estimation at the receiver, and is formulated as a binary statistical hypothesis test. Transmit sequences from multiple antennas are received by multiple antennas in noisy environments with spatially correlated noise (interference). Flat-fading and frequency-selective channel models for both the interference and signal of interest are considered. By applying well-known multiple antenna approaches to the MIMO synchronization problem, a number of new synchronization test statistics are introduced. These test statistics are motivated by minimum-mean-square-error (MMSE) beamformers, generalized-likelihood ratio test (GLRT), least-squared (LS) channel estimation, and spatial invariance. Test statistics appropriate for orthogonal-frequency-division-multiplexing (OFDM) systems are considered, including test statistics that take advantage of cyclic prefixes and of pilot sequences within an OFDM symbol. Performances of various test statistics in terms of probability of missing detection for some probability of a false detection are shown to vary by multiple orders of magnitude in the presence of interference.
Year
DOI
Venue
2010
10.1109/TSP.2009.2037067
IEEE Transactions on Signal Processing
Keywords
Field
DocType
MIMO communication,OFDM modulation,antennas,array signal processing,interference (signal),least squares approximations,radio networks,signal detection,statistical testing,MIMO wireless communication,OFDM symbol,adaptive signal detection,binary statistical hypothesis test,frequency-selective channel models,generalized-likelihood ratio test,interference,least-squared channel estimation,minimum-mean-square-error beamformers,multiple antennas,multiple-input multiple-output communication,orthogonal-frequency-division-multiplexing systems,signal acquisition,spatial invariance,synchronization test statistics,temporal synchronization,wireless communications systems,Adaptive signal detection,cochannel interference,interference suppression,multiple-input multiple-output (MIMO) systems,synchronization,wireless LAN
Synchronization,Spatial correlation,Telecommunications,Multi-user MIMO,Detection theory,Control theory,Fading,MIMO,Algorithm,Interference (wave propagation),Mathematics,Orthogonal frequency-division multiplexing
Journal
Volume
Issue
ISSN
58
3
1053-587X
Citations 
PageRank 
References 
11
1.00
13
Authors
2
Name
Order
Citations
PageRank
Daniel W. Bliss166745.51
Peter A. Parker213414.49