Acquiring Multiple Spread Spectrum Signals in a Multiantenna Ad Hoc Network
October 2004
Robert M. Taylor, Jr., The MITRE Corporation
ABSTRACT
In this study we investigate acquisition (code offset and channel
state estimation) of multiple direct sequence spread spectrum
DSSS signals in a multi-antenna ad hoc network. We
derive the form of the optimal acquisition algorithm and
show that it is NP-complete. We then derive a tractable
suboptimal approach where we use a successive multistage
cancellation approach in estimating the initial code offsets
and channel matrix. Finally, we show probability of error
curves for the optimal and suboptimal delay estimators.
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