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Table 5 Communication cost comparison

From: A secure electronic medical record authorization system for smart device application in cloud computing environments

Protocol

Chiou et al. [13]

Mohit et al. [14]

Kumar et al. [15]

Li et al. [16]

Our scheme

Patient visiting doctor phase

704 bits

592 bits

624 bits

592 bits

1456 bits

Electrical medical record search phase

3712 bits

3526 bits

1088 bits

1952 bits

3008 bits

Diagnosis phase

2122 bits

1184 bits

1300 bits

1232 bits

176 bits

Total cost

6528 bits

5312 bits

2912 bits

3776 bits

4640 bits

4G (100 Mbps)

6528/102,400 = 0.064 ms

5312/102,400 = 0.052 ms

2912/102,400 = 0.028 ms

3776/102,400 = 0.037 ms

4640/102,400 = 0.045 ms

5G (20 Gbps)

6528/20,480,000 = 0.319 us

5312/20,480,000 = 0.260 us

2912/20,480,000 = 0.142 us

3776/20,480,000 = 0.184 us

4640/20,480,000 = 0.227 us