This paper proposes an implementation of systematic Raptor code in an ad hoc V2V (vehicular-to-vehicular) environment for post-crash safety broadcast. This is to address the latency problem caused by use of repetition code in a high speed vehicular environment for time-sensitive safety applications. The highly dynamic topology and challenging RF behavior of vehicular networks necessitate the use of a robust error control mechanism even with the use of spatial diversity techniques such as STBC-MIMO scheme. A cross-layer simulator model is used to evaluate the delay performance of Raptor codes against a low complexity repetition code. The numerical analysis demonstrates that the end-to-end delay performance is significantly reduced when Raptor codes are used, especially at higher distances from the source node. This is true in the case of single antenna as well as multiple antenna schemes.
|Translated title of the contribution||Raptor code for wirelesss ad hoc vehicular safety broadcast|
|Title of host publication||IEEE Globecom 2010 Workshop on Mobile Computing and Emerging Communication Networks, Miami|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1087 - 1091|
|Number of pages||5|
|Publication status||Published - Dec 2010|
|Event||IEEE GLOBECOM Workshops - Miami, FL, United States|
Duration: 1 Dec 2010 → …
|Conference||IEEE GLOBECOM Workshops|
|Period||1/12/10 → …|
Bibliographical noteRose publication type: Conference contribution
Additional information: With accompanying conference presentation
Sponsorship: Nor Fadzilah Abdullah would like to thank the
Malaysian Ministry of Higher Education (MOHE) and Universiti Kebangsaan Malaysia (UKM) for funding this work.
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