Vehicular Content Centric Network (VCCN): A Survey and Research Challenges

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



Agenda

• Motivation

• Vehicular Networks

• Content Centric Networking (CCN)

• Vehicular CCN

• Challenges

• Preliminary Results

• Conclusion and Future Work

4/20/2015 2



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.



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



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.

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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



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



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



Vehicular Information Centric Network

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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



Challenges

4/20/2015 10

Contents

Interest

Mobility

CS, FIB, PIT

Security

Naming

Routing / Forwarding

Caching

VCCN



Preliminary Results

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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



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



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



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

4/20/2015 14KYUNGPOOKNATIONAL UNIVERSITY, Daegu, Korea.


Thanks



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



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

Engineering

Vehicular Content Centric Network (VCCN): A Survey and Research Challenges