Table 28 Scalability analysis of the proposed FL-blockchain framework.

From: A federated learning-based privacy-preserving image processing framework for brain tumor detection from CT scans

No. of Clients

Accuracy (%)

Communication overhead (MB/round)

Update latency (sec)

Blockchain throughput (tx/sec)

System scalability rating

10

98.12

2.4

3.2

10

Excellent

50

97.76

5.1

4.7

9.5

Very good

100

96.83

9.8

6.1

8.7

Good

200

95.24

17.6

7.8

7.3

Moderate

500

93.89

34.2

10.4

6.1

Manageable with optimizations

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