Name
Abstract | ||
|---|---|---|
Although the near-far effect has been considered to be the major issue preventing CDMA from being used in ad-hoc networks, in this paper, we show that the near-far effect is not a severe issue in inter-vehicle networks for safety driving support, where packet transmissions are performed in the broadcast manner. Indeed, the near-far effect provides extremely reliable transmissions between near nodes, regardless of node density, which can not be achieved by CSMA/CA. However, CDMA can not be directly applied in realistic traffic accident scenarios, where highly reliable transmissions are required between far nodes as well. This paper proposes to apply packet forwarding and transmission scheduling methods that try to expand the area, where reliable transmissions are achievable. Simulation results show that the proposed scheme achieves approximately 100% of delivery ratio and 4 milliseconds of delay in a realistic traffic accident scenario, where CSMA/CA achieves approximately 60% of delivery ratio and 80 milliseconds of delay. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/VETECS.2009.5073667 | 2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5 |
Keywords | Field | DocType |
DCMA, CSMA/CA, near-far effect, inter-vehicle communciations, safety-driving support | Broadcasting,Scheduling (computing),Computer science,Cdma networks,Network packet,Computer network,Wireless ad hoc network,Unicast,Code division multiple access,Packet forwarding | Conference |
Citations | PageRank | References |
9 | 1.49 | 4 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Oyunchimeg Shagdar | 1 | 38 | 11.92 |
| Takashi Ohyama | 2 | 13 | 1.90 |
| Mehdad N. Shirazi | 3 | 21 | 5.62 |
| Suhua Tang | 4 | 260 | 35.73 |
| Ryutaro Suzuki | 5 | 48 | 9.66 |
| ryu miura | 6 | 243 | 43.36 |
| Sadao Obana | 7 | 208 | 53.54 |