SAI: Safety Application Identifier Algorithm at MAC Layer for Vehicular Safety Message Dissemination Over LTE VANET Networks

Table 3

LTE simulation parameters.

Parameter	Value
Simulation time	100 seconds
Road model	Manhattan grid model (MG) (two way roads); Glasgow City Center (GCC) (2 km × 2 km)
LTE network	4 sites with 3 cells/site, 1000 m ISD for MG; 6 sites with 3 cells/site, UK Operator EE mast data [8]
Transmission power	eNB: 40 dBm, UE: 23 dBm
Carrier frequency DL/UL	2115 MHz/1715 MHz
Channel bandwidth	MHz ( RBs)
Noise Figure	eNB: 5 dB, UE: 9 dB
UE antenna model	Isotropic (0 dBi)
eNB antenna model	15 dB Cosine model, HPBW
Scheduling algorithm	Proportional Fair
Handover algorithm	A2A4RSRQ, RSRQ threshold −5 dB,
	and NeighbourCellOffset = 2 (1 dB)
Frequency reuse	Distributed Fractional Freq. Reuse
Path loss model	LogDistance () and
	3GPP Extended Vehicular A model
Safety message format	256 bytes UDP
Number of vehicles	75, 100, 125, 150
Average vehicle’s speed	20 km/h, 40 km/h
Beacon frequency	1 Hz, 10 Hz
Awareness range ()	100 m, 250 m, 500 m, 750 m, 1000 m