Table 6 Results of communication and computational overhead between proposed PHC and existing PHCs.

PHC Operations (ms)

 Proposed PHC

150

200

220

 Paillier’s PHE

300

400

450

 LightPHE

180

230

250

FL-RDBN Computations (ms)

 Proposed PHC

1000

1100

1150

 Paillier’s PHE

1200

1300

1400

 LightPHE

1050

1150

1200

Data Transfer (User to Server) (in MB)

 Proposed PHC

5

6

6.5

 Paillier’s PHE

6.5

7

7.5

 LightPHE

5.5

6.2

6.8

Data Transfer (Server to User) (in MB)

 Proposed PHC

4

5.5

6

 Paillier’s PHE

5

6

6.8

 LightPHE

4.5

5.8

6.2

FL Communication (in MB)

 Proposed PHC

2.5

3

3.2

 Paillier’s PHE

3.5

4

4.5

 LightPHE

2.8

3.2

3.5