Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Effect of ISP Traffic Shaping on User-Perceived Performances in
  Broadband Shared Access Networks   Recent studies on the practice of shaping subscribers' traffic by ISPs give a
new insight into the actual performance of broadband access networks at a
packet level. Unlike metro and backbone networks, however, access networks
directly interface with end-users, so it is important to base the study and
design of access networks on the behaviors of and the actual performance
perceived by end-users. In this paper we study the effect of ISP traffic
shaping using traffic models based on user behaviors and
application/session-layer metrics providing quantifiable measures of
user-perceived performance for HTTP, FTP, and streaming video traffic. To
compare the user-perceived performance of shaped traffic flows with those of
unshaped ones in an integrated way, we use a multivariate non-inferiority
testing procedure. We first investigate the effect of the token generation rate
and the token bucket size of a token bucket filter on user-perceived
performance at a subscriber level with a single subscriber. Then we investigate
their effect at an access level where shaped traffic flows from multiple
subscribers interact with one another in a common shared access network. The
simulation results show that for a given token generation rate, a larger token
bucket provides better user-perceived performance at both subscriber and access
levels. It is also shown that the loose burst control resulting from the large
token bucket --- up to 100 MB for access line rate of 100 Mbit/s --- does not
negatively affect user-perceived performance with multiple subscribers even in
the presence of non-conformant subscribers; with a much larger token bucket,
however, the negative effect of non-conformant subscribers on the
user-perceived performance of conformant subscribers becomes clearly visible
because the impact of token bucket size and that of token generation rate are
virtually indistinguishable in this case.

31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom