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How severe is the hidden terminal problem in VANETs when using CSMA and STDMA?

Katrin Sjöberg (Institutionen för signaler och system, Kommunikationssystem) ; Elisabeth Uhlemann ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem)
2011 IEEE Vehicular Technology Conference (VTC-Fall 2011) (1090-3038). p. 1-5. (2011)
[Konferensbidrag, refereegranskat]

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.

Nyckelord: STDMA, CSMA, VANET, hidden terminal problem

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Denna post skapades 2012-01-09. Senast ändrad 2012-01-09.
CPL Pubid: 151985


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