Next-­‐Gen  Mobile  Network  Architecture  for  Advanced  Wireless

December  2,  2016  Shreyasee  Mukherjee  

The  Advanced  Wireless  Research  Ini?a?ve

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Requirements  for  a  Next-­‐Gen  Mobile  Network

1.1.  Gigabit-­‐speed  wireless  broadband  •  Mobile  phones  that  can  download  full  length  HD  movies  in  <  5secs  

•  MulG-­‐interface  capability  

1.2.  Millisecond  latencies  •  Doctors  get  live  video  &  sensor  data  from  ambulances  

1.3.  Millions  of  objects  with  seamless  mobility  •  Fully-­‐autonomous  vehicles  that  can  communicate  with  themselves  

   

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Nokia

So  its  5G?

Ericsson

Qualcomm

Huawei 4/16

Well,  not  just  the  G’s

The  fastest  Internet  and  the  fastest  networks  cannot  be  built  by  enhancing  just    the  edge  

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2.1.  FlaMer  networks  2.2.  Virtual  networks  and  network  slicing  •  CommodiGzaGon  of  network  infrastructure  

2.3.  In-­‐network/cloud-­‐based    services  •  Compute/communicaGon  tradeoffs  •  Smarter  core  protocols  

•  efficient  mulGcast,  anycast,  broadcast  

 

Implicit  Core  Network  Requirements

Compute

Communication

Physical network

Network slices

VMs

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*Work done in collaboration with Francesco Bronzino

The  Named-­‐Object  Abstrac?on  –  A  Solu?on

What  to  Where  Mapping  

WHAT  WHERE  

HOW  

Virtual Link

Mobility/Late Binding Multipoint

Content/Anycast

•  SeparaGon  of  names  from  addresses  •  Name  idenGfies  WHAT/WHO,  translates  to  current  locaGon(s)  (WHERE)  which  are  used  to  idenGfy  HOW  to  perform  the  network  acGon.  

Mapping  Servic

e  

Mapping  Service  

Mapping  Service  

Mapping  Service

 

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Send (GUID = 11011..011, SID=01, NA99, NA32,

data)

High  Bandwidth  Wireless  for  a  Mul?-­‐Interface  Device  

• Network-­‐assisted  mulG-­‐homing  

NCS

GUID 11011..011 GUID Lookup

GNRS

MobilityFirst  Network(Data  Plane)

Send (GUID = 11011..011, data)

GNRS query

NA99

NA32

DATA

DATA

GNRS update (GUID 11011..011, NA99,

NA32, Stripe)

WHO—John’s  laptop  WHERE—MulGple  NAs  HOW—Stripe  

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5meters/s(11mph) 10meters/s 20meters/s 30meters/s(67mph)

0

100

200

300

400

Speed of Vehicle

File

Transfer

Com

pletion

Tim

e(secs)

WiFi & LTE

WiFi only

LTE only

High  Bandwidth  Wireless  (II)  -­‐-­‐  with  mobility

10 20 30 40 50 60 70 80 900

20

40

60

80

100

120

140

160

180

200

Time(secs)

Aggr

egat

e Th

roug

hput

(MBy

tes)

use both WiFi and LTEuse only WiFiuse only LTE

5meters/s(11mph) 10meters/s 20meters/s 30meters/s(67mph)0

50

100

150

200

250

300

350

400

450

Speed of Vehicle

File

Tra

nsfe

r Com

plet

ion

Tim

e (s

ecs)

use both WiFi and LTEuse only WiFiuse only LTE

No WiFiconnectivity

Aggregatethroughput closeto the sum of the

throughputthrough each

• WiFi  +  LTE  mulGhoming  (NS3)  •  In-­‐network  data  striping  

Service  intent  (HOW)  –  WiFi+LTE,  best  interface,  only  WiFi,  etc.  In-­‐network  storage  counters  packet  loss  

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Millions  of  Objects    -­‐-­‐  with  mobility

*Work done in collaboration with Akash Baid

• NJ  Turnpike  and  Jersey  City  vehicular  mobility  

• Random  assignment  of  base-­‐staGons  

• Number  of  name-­‐locaGon  updates  in  the  resoluGon  service  

160  updates/sec  Traffic  overhead—  <16KBps  

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*Work done in collaboration with Francesco Bronzino

Hundreds  of  Objects  (II)  -­‐-­‐in  a  mul?cast  group

1  

Source Gs

Destinations Destinations

1

Gd3 Gd2 Gd4 Gd1

Gr11

Gr21 Gr22

Gr31 Gr32

GNRS Service Plane GUID   Mapping  

GMng   Gd1,Gd2,...  

GMulG   Gr11  

Gr11   Gr21,  Gr22  

Previous  Headers   Payload  Src:  Gr11  

Dst:  Gr21  Src:  Gs  Dst:  GM  

1

20 50 100 10000

2

4

6

8

10

12·104

Graph Size

Ave

rage

pack

etho

ps

NOMAPIM-SM+MSDP

20 50 1000

500

1,000

• Named-­‐Object  MulGcast  (NOMA)  

• Recursive  trees  allowing  •  dynamic  mobility  •  flexible  tree  gen  algorithms  •  good  scaling  properGes  

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PotenGal  savings  through:  •  Self-­‐cerGfying  names  

•  GNRS  based  mobility-­‐management  •  Improved  5G  PHY  and  MAC  

 

FlaTer  Networks

Signaling exchanges in 3GPP

Flatter core network with commodity routers

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Virtual  Networks

*Work by Francesco Bronzino

GUID   VN  Type   Locator  

R1   No   101  

VNID_1   Yes   VR1,  VR2,  …  

VR1   No   R1  

GNRS Service Plane GUID to Location

VN-ID to VN-Members

VN-Name to Phy-Name

•  MeeGng  service  specific  requirements  •  Name-­‐based  virtual  network  layers  

•  Easy  management  through  GNRS  13/16

*Work done in collaboration with Adrian Lara, Francesco Bronzino & Feixiong Zhang

GUID   Loc   Type   Expiry    

C   P1   GUID   never  

P1   19   NA   1  day  

M   53a   NA   1min  

In-­‐Network  Services  -­‐-­‐with  smarter  protocol

Src  GUID   Src  NA   Dst  GUID   Dst  NA   SID   Ext.  

Service  Type   Service  GUID   Arguments  

GNRS Service Plane

Network 19

•  Edge  caching  •  In-­‐network  transcoding  • Cut-­‐through  tunneling  • …  

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• Unified  but  flexible  abstracGon  for  advanced  mobility  services  

•  Smarter  core  network  protocols  for  next-­‐gen  applicaGon  requirements  

• Ongoing  work  -­‐  Incremental  deployment  scenarios  

Summary:  Named-­‐Objects  for  Advanced  Wireless

MF Island

Unmodified Internet Core

Global NRS NRS

Mapping from GUIDs to getaway routers’ NAs

Tunnel

MF Island MF Island

NRS

Encapsulate MF messages in IP/UDP

packets

Tunnel

NRS

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Thank  you “[t]he  world  has  gone  wireless  and  we  cannot  be  ler  behind.”  

 -­‐  President  Obama  16