Dear all,
as Bin explained, disconnections and reconnections will occur in
wireless systems more frequently as in wireline system. The effect of
"churn" is not negligible. An comprehensive analysis of the impact of
churn is available in:
A. Binzenhoefer and K. Leibnitz: "Estimating Churn in Structured P2P
Networks.", 20th International Teletraffic Congress (ITC20), Ottawa,
Canada, June 2007. available at http://www3.informatik.uni-wuerzburg.de/papers/conf_261.pdf
There is already a lot of research going. Much of this will available
soon in a special book on Mobile P2P systems:
Boon-Chong Seet (Edt.): "Mobile Peer-to-Peer Computing for Next
Generation Distributed Environments: Advancing Conceptual and
Algorithmic Applications", IGI Global, Hershey (USA), April 2009.
Best Regards
Kurt
Am 09.02.2009 um 09:56 schrieb longbwe longbwe:
Thank all of you!
In mobile environments,peer connections become location-dependent
and may be vulnerable, disconnetions and reconnections can ouccur
more frequently, you should address these issues when a peer is
registering or searching the overlay.Also, there is mobility issue
in federated overlay architectures.
As for the technical meaning of mobile p2p, we think it could
include the p2p overlay for mobile ad hoc networks(MANET) and
sensor networks, p2p architectures for integrated MANETs and wide-
area networks,Mobile P2P on different bearer serveces: 2.5/3G(GPRS/
UTMS), 802.11(WLAN), mobile P2P SIP, and so on.
Looking for your responses.
Best regards,
Bin Long
On Mon, Feb 9, 2009 at 4:12 PM, Song Haibin <[email protected]>
wrote:
Hi David,
I think you get to the point. The p2p layer connection continuity is
important for the mobile overlay network. I want to know if some
generic
mobility techniques which are independent of the applications could
be used
to solve this problem?
Best Regards,
Haibin
Email: [email protected]
Skype: alexsonghw
________________________________________
From: [email protected] [mailto:[email protected]] On
Behalf Of
David Artu?edo Guillén
Sent: Monday, February 09, 2009 3:40 PM
To: Henry Sinnreich
Cc: longbwe longbwe; Wang, Sherry; [email protected]
Subject: Re: [P2PSIP] mobile p2p in p2psip
Henry,
I guess it is related to the fact that in mobility your device gets
different IPs in short periods of time. Frecuent changes has to be
managed
in order to route messages efficiently. It is not the same as churn,
but it
introduces similar challenges, IMHO.
BR
Enviado desde mi iPhone
El 08/02/2009, a las 21:22, "Henry Sinnreich" <[email protected]>
escribió:
Please help me understand the technical (not marketing) meaning of
mobile
p2p.
Mobility is inherent on the Internet and can be implemented in
several ways.
Or are you referring to to mobile phones not connected to the
Internet?
Where is the protocol capability difference between a laptop, a
netbook and
a smart phone?
This sounds simplistic, but wireless to me is a wire into the
Internet,
unless we talk about some closed network, and please tell me why
would I buy
it?
Henry
On 2/7/09 2:57 AM, "longbwe longbwe" <[email protected]> wrote:
Sheery,
Thanks very much for your reply.Maybe it is a little early to set a
seperate
WG for Mobile P2P, I am wondering whether the work of P2PSip can be
extensible to wireless scenarios, e.g. its architecture.Mobility
management
is certainly one of our interested fields, which also include the
network
topology, architecture, peer protocol, private issue, security and
so on.We
would like to discuss one or more such related topics with you and
any one
else. The underlying fact is that with the issue of 3G lisences in
China
and emergence of more and more cell phone applications, our team
think we
should do some work to extend the P2P technic from PC to mobile
devices.
Best wishes,
Bin Long
On Sat, Feb 7, 2009 at 12:40 AM, Wang, Sherry <[email protected]>
wrote:
Bin,
It's out of question that we should do it. I have seen mobile P2P
researches
and discussions existing for a while. Should we have a separate WG
because
of its technical significance and complexity, I am not sure.
Important is
that we need to work on it. Are you interested in mobility
management only,
e.g. handover, or more?
Thanks,
Sherry Wang
________________________________________
From: [email protected] [mailto:[email protected]] On
Behalf Of
longbwe longbwe
Sent: Friday, February 06, 2009 1:39 AM
To: [email protected]
Subject: [P2PSIP] mobile p2p in p2psip
Hi all,
We want to know if mobile p2p can be discussed in this WG, or the
p2psip is
also appropriate for the wireless scenarios, because we are
intrested in
mobile p2p now and wish to do some communication with the ones who
also
research on it.
Any feedback is appreciated!
Best Regards,
Bin Long
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---
Prof. Dr. Kurt Tutschku
Chair of Future Communication (Endowed by Telekom Austria)
Institute of Distributed and Multimedia Systems, Faculty of Computer
Science
University of Vienna, Universitaetsstrasse 10/T11, 1090 Wien, Austria.
Tel: +43/1/4277-39611 Mobile: +43/664/60277-39611
http://www.cs.univie.ac.at/fc
mailto:[email protected] or mailto:[email protected]
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