Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anytime coding on the infinite bandwidth AWGN channel: A sequential
  semi-orthogonal optimal code   It is well known that orthogonal coding can be used to approach the Shannon
capacity of the power-constrained AWGN channel without a bandwidth constraint.
This correspondence describes a semi-orthogonal variation of pulse position
modulation that is sequential in nature -- bits can be ``streamed across''
without having to buffer up blocks of bits at the transmitter. ML decoding
results in an exponentially small probability of error as a function of
tolerated receiver delay and thus eventually a zero probability of error on
every transmitted bit. In the high-rate regime, a matching upper bound is given
on the delay error exponent. We close with some comments on the case with
feedback and the connections to the capacity per unit cost problem.

21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph