Research Article
A Semi-Markov Process Model for Performance Evaluation of DSRC Vehicular Safety Communication
Table 4
Parameter settings of DSRC communication.
| General parameters | Value |
| Data rate (Rd) | 24 Mbps | Basic rate (Rb) | 6 Mbps | Slot time (σ) | 9 μsec | SIFS time | 16 μsec | DIFS = SIFS + 2 × slot time | 34 μsec | Propagation delay (δ) | 1 μsec | Data payload length (E(P)) | 200 octets | MAC sublayer overhead | 28 octets | PHY layer overload | 20 μsec | Retry limit L | 7 | aCWmin | 63 | aCWmax | 1023 |
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