vehicular content centric network (vccn): a survey and research challenges
TRANSCRIPT
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Vehicular Content Centric Network (VCCN): A Survey and Research Challenges
S a fd a r H . B o u k , S y e d H . A h m e d a n d
D o n g k y u n K i m
4/20/2015 1
ACM SAC 2015Salamanca, Spain
April 13-17 2015
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Agenda
• Motivation
• Vehicular Networks
• Content Centric Networking (CCN)
• Vehicular CCN
• Challenges
• Preliminary Results
• Conclusion and Future Work
4/20/2015 2
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Motivation
4/20/2015 3
Source: http://share.cisco.com/vni14/
1. Internet Users
1.
2. Networked Devices
2.
3. M2M Connections
3.
4. IP Traffic
4.
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
MotivationThe Mobile Network Through 2018
Mobile data traffic:• Surpass 15EB monthly by 2018.
• Worldwide mobile connection speed will surpass 2 Mbpsby 2016.
• Smartphones data traffic will reach 66% of mobile data traffic by 2018.
• Mobile tablet traffic will surpass 2.5 EB/month by 2018.
• 4G traffic will be more than half of the total mobile traffic by 2018.
TB = Terabyte (1000 GB)
PB = Petabyte (1000 TB)
EB = Exabyte (1000 PB)Source: Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2013–2018
Communication of huge amount of DATA/CONTENTS with addressed devices.
Information Centric Networking
4/20/2015 4
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Network Today
Today’s Networking:
◦ Device Centric
◦ Communicate by addressing the device.
◦ >90% of traffic is accessing different kind of Content.
◦ Inefficient for Content/data dissemination.
◦ Multicast ~ at huge cost of Network resources.
◦ Addressing ~ Inefficient : DNS, IPv6, etc. to identify devices.
◦ Service Discovery ~ Many protocols, with no standard.
◦ Mobility? ~ Achievable but not inherent in today’s networks.
◦ Security? ~ Connection: IPSec, VPN, SSL, but not Content …. Result --> spam.
4/20/2015 5
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Vehicular Network• Highly dynamic topology.
• Unpredictable link lifetime.
• Safety and Non-Safety applications.• Large data requirements.
• Delay constraints, etc.
• With/Without infrastructure support.
• Data ranges from short messages to Large video contents.
V2V Communication
V2I / I2V Communication
4/20/2015 6
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Information Centric Networking (ICN)
ICN represents the third revolution in telecommunication networks….Van Jacobson
◦ Information/Contents/Data are at the center of networking not nodes/machines.
◦ Name DATA not Location/Device.
◦ Pull based consumer driven communication:
◦ Broadcast Interest Packet ~ Wait for Data Packet
◦ Request DATA in Network (Not data provider/host)
◦ Any node with the DATA (or copy in its Cache), Responds the Request. (Authenticate Data not connection).
◦ Less delay, More Security, DNS….
4/20/2015 7
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Vehicular Information Centric Network
V2V Communication
V2I Communication
Name PrefixesOut.
Face(s)
FIB
NamesIn.
Face(s)
PIT
CS
Maintained at each Vehicle
Name each content• Maintaining Names (specially in PIT)
• Data Structure with minimum space….
• Fast addition and deletion of names ….
• Searching Names from PIT and FIB.
• Speed and accuracy.
• Forwarding based on the search result.
4/20/2015 8
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Vehicular Information Centric Network
4/20/2015 9
Node D Node E
Node C
Node B
Node A
CS Check
PIT Check
FIB Check
Add In Face in PIT
NO NO YES
YESNoYES
Interest
DATA
Interest
Drop/NACK
Add CS?Remove PIT Entry
YES
No
DATA DATA
Discard DATA
PIT Check
Dow
nst
ream
Upst
ream
Interest Forwarding
Data Forwarding
CONSUMER
PROVIDER
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Challenges
4/20/2015 10
Contents
Interest
Mobility
CS, FIB, PIT
Security
Naming
Routing / Forwarding
Caching
VCCN
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Preliminary Results
4/20/2015 11
0
5
10
15
20
25
30
35
40
45
50
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg
. No
. of
Sati
sfie
d In
tere
sts/
ho
p
Satisfied Interests - 1/2s
Satisfied Interests - 4/2s
Satisfied Interests - 7/2s
0
0.002
0.004
0.006
0.008
0.01
0.012
0.014
0.016
0.018
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
Ave
rage
Sat
isfa
ctio
n D
elay
(s)
HOPS
Conv. Satisfied Interests - 1/2s
Prop. Satisfied Interests - 1/2s
0
0.005
0.01
0.015
0.02
0.025
0.03
0.035
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
Ave
rage
Sat
isfa
ctio
n D
elay
HOPS
Conv. Satisfied Interests - 7/2s
Prop. Satisfied Interests - 7/2s
Tx 500
Node 90
Speed 70
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Preliminary Results
4/20/2015 12
Tx 500
Node 90
Speed 70
0.0048
0.005
0.0052
0.0054
0.0056
0.0058
0.006
0.0062
0.0064
1 2 3 4 5 6 7
Inte
rest
Sat
isfa
ctio
n D
ela
y (s
)
Interest/2s
Proposed 1
Proposed 2
Conventional ICN
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
1 2 3 4 5 6 7
No
. of
Pro
cess
ed
Dat
a P
kts
Interest/2s
Proposed 1
Proposed 2
Conventional ICN
0
0.2
0.4
0.6
0.8
1
1.2
1 2 3 4 5 6 7
Max
. PIT
En
try
Tim
e (
s)
Interests/2s
Proposed 1
Proposed 2
Conventional ICN
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
Conclusion
We identified the challenges in the Vehicular InformationCentric Networks.
The current focus is on Data and Interest floodingminimization.
Content Naming scheme for Vehicular Networks.
Future Work Smart Forwarding.
Efficient PIT, FIB and CS Search.
Effect of PIT, FIB and CS Size on Interest Satisfaction Rate and Delay.
……..
4/20/2015 13
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
What Next….
VANET/V2X
Which ICN architecture?
Naming?
Requester Mobility: OK
Provider Mobility: ?
Role of RSUs?
Role of Backoffice Network?
Routing?
Caching Policy?
Security?
4/20/2015 15
KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.
MoNet Laboratorywww.monet.knu.ac.kr
ICN Working Principle
Routing Table
The concept of an ICN does
not force applications to take
on host-centric information.
Instead, it detaches the
application from such
concerns.
Gareth Tyson et al.Where’s in the name?
4/20/2015 16