To improve the effect of regional financial and economic data processing, this study combines distributed decoding technology to construct processing system. Furthermore, technical characteristics cooperative communication unitary space-time codes design a non-differential code based on cyclic matrix groups. In addition, uses particularity trigonometric functions functions. Finally, according f...

Range query processing is a common edge computing and service in the Internet of things, which can extract user-interest information from distributed devices. How to design lightweight privacy-preserving range methods remains challenging task. Existing secure approaches suffer both high communication cost long response time, makes them unsuitable for over resource-constrained In this article, w...