云环境中多地图室内定位隐私保护方案

厉天宸,付泽豪,姚恒,乐燕芬

Privacy-preserving scheme for multi-map indoor localization in cloud environments

Tianchen LI,Zehao FU,Heng YAO,Yanfen LE

表 1 隐私保护方案在线阶段的理论计算与通信开销

Tab.1 Theoretical computational and communication overheads of privacy-preserving schemes during online stage

方案 用户计算开销 LSP计算开销 CSP计算开销 通信开销/bits 本研究 (L+N) ∙ Exp + 2(L+N) ∙ Mul — Nm ∙ Exp+Nm ∙ Mul (N+L) Le 文献[13] kM ∙ Exp + 2kM ∙ Mul 3kMN ∙ Mul kMN ∙ Exp [Nk(M+1)+Mk] Le 文献[15] 4M ∙ Exp + 8M ∙ Mul rN ∙ Exp+N (M+3) ∙ Mul N ∙ Exp+Mul NTLe +G