Table 3 Packet delay under different number of nodes in the network.

From: Energy efficient clustering in industrial Iot using a quantum informed artificial hummingbird optimization algorithm

Proposed methodologies

Packet delay (msec) under scalable Number of nodes in the network

40

80

120

160

200

Proposed EEQIAHBOA

34

41

59

73

83

CMECSOACF

45

67

62

85

98

HCSMBOARP

58

89

78

99

113

HCSMBOARP

68

97

84

108

123

ABCSTA

79

111

98

123

139