Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A General Characterization of Sync Word for Asynchronous Communication   We study a problem of sequential frame synchronization for a frame
transmitted uniformly in $A$ slots. For a discrete memoryless channel (DMC),
Venkat Chandar et al showed that the frame length $N$ must scale with $A$ as
$e^{N \alpha(Q)} > A$ for the frame synchronization error to go to zero
(asymptotically with $A$). Here, $Q$ denotes the transition probabilities of
the DMC and $\alpha(Q)$, defined as the synchronization threshold,
characterizes the scaling needed of $N$ for asymptotic error free frame
synchronization. We show that the asynchronous communication framework permits
a natural tradeoff between the sync frame length $N$ and the channel (usually
parameterised by the input). For an AWGN channel, we study this tradeoff
between the sync frame length $N$ and the input symbol power $P$ and
characterise the scaling needed of the sync frame energy $E = N P$ for optimal
frame synchronisation.

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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
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The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
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The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex