Research Article

A Semi-Markov Process Model for Performance Evaluation of DSRC Vehicular Safety Communication

Table 1

Comparison of analytical models.

ReferenceApproachModeMAC typeADNumber of ACVCThroughput

[617]Markov chain-basedU/BDCF/EDCA1/2/3/4×/√
[18, 19]SMP basedUDCF
[2023]SMP basedBEDCA×1××
[24]SMP basedBEDCA4××
Our modelSMP basedBEDCA4

Note: U: unicast, B: broadcast, AD: AIFS differentiation, VC: virtual collision, and ×: not considered.