Publications:How severe is the hidden terminal problem in VANETs when using CSMA and STDMA?
From CERES
| Title | How severe is the hidden terminal problem in VANETs when using CSMA and STDMA? |
|---|---|
| Author | Katrin Sjöberg and Elisabeth Uhlemann and Erik G. Ström |
| Year | 2011 |
| PublicationType | Conference Paper |
| Journal | |
| HostPublication | IEEE Vehicular Technology Conference (VTC Fall) |
| DOI | http://dx.doi.org/10.1109/VETECF.2011.6093256 |
| Conference | IEEE Vehicular Technology Conference, 5-8 Sept., San Francisco, CA, USA, 2011 |
| Diva url | http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:464320 |
| Abstract | The hidden terminal problem is often said to be the major limiting performance factor in vehicular ad hoc networks. In this article we propose a definition of the hidden terminal problem suitable for broadcast transmissions and proceed with a case study to find how the packet reception probability is affected by the presence of hidden terminals. Two different medium access control methods; carrier sense multiple access (CSMA) from IEEE 802.11p and self-organizing time division multiple access (STDMA), are subject of investigation through computer simulations of a highway scenario with a Nakagami fading channel model. The results reveal that the presence of hidden terminals does not significantly affect the performance of the two MAC protocols. STDMA shows a higher packet reception probability for all settings due to the synchronized packet transmissions. |
