From Centralized Protection to Distributed Edge Collaboration: A Location Difference-Based Privacy-Preserving Framework for Mobile Crowdsensing

Table 3

Comparison of privacy-preserving methods.

Scheme		CTBC	k-anonymity
System overhead	Information loss	M	L
	Computational complexity	(k + 2) n	kn
Security	Trusted third party	No	Yes
	User anonymity	Yes	Yes
	Location authenticity protection	Yes	No

L: low; M: medium; H: high.