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Content  Centric  VANETs:    Routing  and  Transport  issues  Marica  Amadeo,  Claudia  Campolo  and           Antonella  ...
Motivations   CCN  in  Vehicular  Ad  Hoc  NETworks       CCN  is  an  attractive  solution  for  wireless  networks  with...
VANETs  Features       Unique  applications            Traditional  Internet-­‐based  applications  +  new  applications  ...
                                CCN  in  VANETs                                                  Potential  benefits     Z...
                                   CCN  in  VANETs                                                     Main  issues   Arch...
CCN  in  VANETs:                                     Main  Issues  Architectural  Issues          CCN  and  WAVE  deployme...
Our  Architectural  Vision  Content-­‐Centric  Vehicular  Networking  (CCVN)       non-­‐safety  data  retrieval  and  dis...
CCN  in  VANETs:                                    Main  Issues  Architectural  Issues  Routing  Issues          Broadcas...
Routing  and  Forwarding  in                                            CCVN       Counter-­‐based    scheme  over  each  ...
CCN  in  VANETs:                                  Main  Issues  Architectural  Issues  Layer  3  Issues  Layer  4  Issues ...
Transport                                                           in  CCVN     One  Interest  per  Data  packet     Reli...
                     Preliminary  Evaluation                                                 Simulation  Scenario    Simul...
Results            Fraction  of  nodes  able  to  receive  at  most  a  given  amount  of            bytes  of  the  reque...
Results  Cumulative  distribution  function  of  the  download  time                                                      ...
Conclusions  Some  references  about  CCN  in  ad  hoc  networks  M.  Amadeo,  A.  Molinaro               Content-­‐Centri...
                                 Thanks  for  your  attention                                           Content  Centric  ...
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CCNxCon2012: Session 3: Content-centric VANETs: routing and transport issues

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Content-centric VANETs: routing and transport issues
Marica Amadeo, Claudia Campolo, Antonella Molinaro (University Mediterranea of Reggio Calabria, Italy)

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Transcript of "CCNxCon2012: Session 3: Content-centric VANETs: routing and transport issues"

  1. 1. Content  Centric  VANETs:    Routing  and  Transport  issues  Marica  Amadeo,  Claudia  Campolo  and   Antonella  Molinaro     Speaker Marica Amadeo CCNxCon, September 12, 2012
  2. 2. Motivations   CCN  in  Vehicular  Ad  Hoc  NETworks   CCN  is  an  attractive  solution  for  wireless  networks  with   dynamic  topologies   Several  design  challenges  need  to  be  addressed   INTERNET V2Ivehicle-to-infrastructure communication vehicle-to-vehicle (V2I) communication (V2V) V2V Sensors
  3. 3. VANETs  Features   Unique  applications   Traditional  Internet-­‐based  applications  +  new  applications   (safety/non-­‐safety)  designed  for  the  road  environment     Vehicle  mobility   Quickly  changing  network  topologies  and  short  V2V  and  V2I   connection  lifetimes   Node  capabilities      GPS,  unlimited  power  and  storage   Ad-­‐hoc  defined  protocol  stack    WAVE  platform  (IEEE  802.11p  +  IEEE  1609)       3  
  4. 4.   CCN  in  VANETs    Potential  benefits   Zero  configuration  networking   Matching  the  nature  of  location-­‐relevant  applications   Easy  and  effective  in-­‐network  caching   Service  over  sporadically  connected  links     INTEREST CS   FORWARDING   DATA PIT   ENGINE   PROVIDER FIB   CONSUMER
  5. 5.   CCN  in  VANETs    Main  issues   Architectural  Issues   CCN  and  WAVE  deployment   Routing  Issues   Broadcast  channel,  highly  dynamic  network  topologies,   short-­‐lived  and  intermittent  connectivity   Transport  Issues   Reliability,  Flow  control,  Congestion  Control  
  6. 6. CCN  in  VANETs:   Main  Issues  Architectural  Issues   CCN  and  WAVE  deployment:            How  to  work  with  legacy  protocols?  Routing  Issues  Transport  Issues  
  7. 7. Our  Architectural  Vision  Content-­‐Centric  Vehicular  Networking  (CCVN)   non-­‐safety  data  retrieval  and  dissemination   compliant  with  IEEE  802.11p   SAFETY   NON-­‐SAFETY   SAFETY   NON-­‐SAFETY  APPLICATIONS     APPLICATIONS     APPLICATIONS     APPLICATIONS     UDP   TCP   WSMP   WSMP   CCVN   IPv6   LLC   LLC   802.11p  MAC   802.11p  MAC   802.11p  PHY   802.11p  PHY   Legacy WAVE stack With CCVN
  8. 8. CCN  in  VANETs:   Main  Issues  Architectural  Issues  Routing  Issues   Broadcast  channel,  highly    dynamic  network  topologies,   short-­‐lived  and  intermittent  connectivity:            How  to  limit  broadcast  storm?            How  to  efficiently  forward  Interest  and  Data  packets?  Transport  Issues  
  9. 9. Routing  and  Forwarding  in   CCVN     Counter-­‐based    scheme  over  each  Interest  and  Data  forwarding  to   counteract  broadcast  storm       Scalable  content  delivery   Provider  discovery  via  (multi-­‐hop)  Interest  broadcasting   Providers stored  in  the  Content  Provider  Table   (CPT)   Content  delivery:   Consumers  choose  their  provider  according  to  a  given   selection  criterion   Path-­‐state  information  in  Data  and  Interest  packets  M. Amadeo, C. Campolo, A. Molinaro Content-centric networking: is that a solution for upcoming
  10. 10. CCN  in  VANETs:   Main  Issues  Architectural  Issues  Layer  3  Issues  Layer  4  Issues   Reliability:  How  to  manage  Interest  retransmissions?   Flow  control:  How  to  control  the  Interest  transmission   rate?   Congestion  Control:  How  to  achieve  congestion   detection  and  avoidance?  
  11. 11. Transport   in  CCVN   One  Interest  per  Data  packet   Reliability   A  Consumer  retransmits  the  Interest  if  the  Data  is  not  received   within  a  retransmission  timeout  interval,  which  depends  on  the   estimated  RTT   Interest  transmission  rate   Simple  choice:  One  Interest  per  RTT   Congestion  control  not  performed  yet    M. Amadeo, C. Campolo, A. Molinaro Content-centric networking: is that a solution for upcoming
  12. 12.   Preliminary  Evaluation      Simulation  Scenario   Simulator:  ns-­‐2   RSU   Urban  area   1  RSU  and  100  vehicles   RSU   VanetMobiSim  mobility   300  m   (20-­‐40km/h)   Content  size:  500  kbytes   300  m    
  13. 13. Results            Fraction  of  nodes  able  to  receive  at  most  a  given  amount  of   bytes  of  the  requested  content     5 downloads 20 downloads
  14. 14. Results  Cumulative  distribution  function  of  the  download  time                     5 downloads 20 downloads
  15. 15. Conclusions  Some  references  about  CCN  in  ad  hoc  networks  M.  Amadeo,  A.  Molinaro Content-­‐Centric  Architecture  for  IEEE   802.11  MANETs NoF  2011.  M.  Amadeo,  A.  Molinaro A  Content-­‐Centric  Architecture  for  Green    M.  Amadeo,  C.  Campolo,  A.  Molinaro CRoWN:  Content-­‐Centric  Networking  in    Next  steps:  Layer  4  issues   Interest  flow  control   Interest  pipelining?   Congestion  control   Explicit  congestion  notification?    
  16. 16.     Thanks  for  your  attention     Content  Centric  VANETs:     Routing  and  Transport  issues      Marica  Amadeo,  Claudia  Campolo,  Antonella  Molinaro     name.surname@unirc.it  
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