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A Network Coding Equivalent Content Distribution Scheme for
Efficient Peer-to-Peer
ABSTRACT
Although random access operations are desirable for on-demand
video streaming in peer-
to-peer sstems! the are difficult to efficientl achieve due to
the asnchronous interactivebehaviors of users and the dnamic nature
of peers" #n this paper! we propose a network coding
equivalent content distribution $NCECD% scheme to efficientl
handle interactive video-on-
demand $&oD% operations in peer-to-peer sstems"
#n NCECD! videos are divided into segments that are then further
divided into blocks"
'hese blocks are encoded into independent blocks that are
distributed to different peers for local
storage" (ith NCECD! a new client onl needs to connect to a
sufficient number of parent peers
to be able to view the whole video and rarel needs to find new
parents when performing random
access operations" #n most e)isting methods! a new client must
search for parent peers containing
specific segments* however! NCECD uses the properties of network
coding to cache equivalent
content in peers! so that one can pick an parent without
additional searches"
E)perimental results show that the proposed scheme achieves low
startup and +ump
searching delas and requires fewer server resources" #n
addition! we present the analsis of
sstem parameters to achieve reasonable block loss rates for the
proposed scheme"
EXISTING SYSTEM:
An important challenge in a P,P collaborative video-on-demand
$&oD% streaming sstem
is to develop an effective content distribution scheme that can
support a dnamic network among
peers! where autonomic peers can +oin or leave the sstem at an
time and an place in the
network" 'he situation is further complicated b the need to
support random access! such as thetrick plas of pauseresume! +ump!
and fast forward $..%! and rewind" Such trick plas ma occur
frequentl"
Contact: 040-40274843, 9533694296
Email id:[email protected],
www.logicsystems.org.in Page 1
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A Network Coding Equivalent Content Distribution Scheme for
Efficient Peer-to-Peer
/ost e)isting approaches require at least 0 $log $N%% time to
locate the requested segment!
where N is the number of segments of the requested video" 'he
scheme we propose in this stud
can offer a more efficient approach $and one that supports trick
plas% to the P,P-based
interactive &oD sstems"
PROPOSED SYSTEM:
'he proposed scheme avoids these problems b adopting the
additional static local
storage instead of sliding window plaback buffering! to
efficientl support users1 interactive
operations and decrease comple)it"
'he advantage of using additional storage is that an user
interactivit on the part of the
peer does not affect its children from continuing to receive its
stored media data" /oreover!
observations from a large number of user requesting logs
indicate that random seeking is
frequentl performed b most users"
'his is reasonable! as users usuall +ump directl to the scene of
interest and skip boring
segments" 'herefore! it would be favorable if the sstem could
guarantee peers the abilit to
+ump to an pla point in the requested video without searching
for new parent peers that possess
specific segments"
MODULES:
Admin
#t receives the request from clients and processes it! sends the
requested video
corresponding to client bandwidth"
Client
Contact: 040-40274843, 9533694296
Email id:[email protected],
www.logicsystems.org.in Page 2
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A Network Coding Equivalent Content Distribution Scheme for
Efficient Peer-to-Peer
#t send the request to the server! request contains requested
file! available bandwidth of
client and receives the video based on its available
bandwidth"
SOFTWARE REQUIREMENT SPECIFICATION:
Sot!"#e S$e%ii%"tion:
0perating Sstem 2 (indows 3P
'echnolog 2 4A&A 5"6! 4/.
&"#d!"#e S$e%ii%"tion:
Processor 2 Pentium #&
7A/ 2 589
:ard Disk 2 ;
