Multi-rate vehicular communications with systematic raptor codes in urban scenarios

Nor Fadzilah Abdullah*, Angela Doufexi, Robert J. Piechocki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

In an urban environment, vehicle mobility is limited by road structure and obstacles. This gives rise to extremely challenging network design for large data transfers due to unpredictable network dynamics, limited connection lifetime and unstable channel conditions. Conventional approaches using retransmission schemes do not perform well in these conditions due to nodes leaving the network in the middle of the download. Rateless codes have been identified as a solution to address interrupted downloads with minimal handshaking and overhead requirements. Varying channel conditions calls for the need of multi-rate vehicular communications, where low rate robust communication is used when bad channel is experienced and higher rate modulation is used in good channel conditions. This paper presents a novel coding scheme based on systematic raptor codes for multihop data dissemination that is based on multi-rate vehicular communications. With this scheme, even vehicles which are outside the roadside infrastructure coverage can be provided with reliable access to infrastructure services.

Original languageEnglish
Title of host publication2012 IEEE International Conference on Communications, ICC 2012
Pages7141-7145
Number of pages5
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, Canada
Duration: 10 Jun 201215 Jun 2012

Conference

Conference2012 IEEE International Conference on Communications, ICC 2012
CountryCanada
CityOttawa, ON
Period10/06/1215/06/12

Keywords

  • IEEE 802.11p
  • infrastructure-based vehicular communication
  • link adaptation
  • Manhattan grid
  • multihop
  • multirate
  • Raptor codes
  • Rateless codes
  • unicast
  • urban
  • Vehicular networks

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