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- Title
无线电环境地图的冗余感知数据删除技术研究.
- Authors
刘媛妮; 黎北河; 苏 飞; 赵国锋; 关 鑫; 段 洁
- Abstract
Mobile crowd sensing (MCS) has good application prospects in the data collection system of radio environment map (REM) due to its obvious advantages. However, due to the temporal and spatial correlation characteristics of mobile crowd sensing, there is a lot of redundancy in the sensed data, which results in low efficiency of data storage and large consumption of transmission bandwidth. To deal with the problem, a redundancy data deletion technology for REM based on the synthesized difference degree of sensed data is proposed. The synthesized difference degree of sensed data is calculated in proposed technology for redundancy check and deletion in REM. To demonstrate the validity of the proposed technology in this paper, we conducted experiments compared with the existing data deduplication technology. The experiment results show that compared with the existing data deduplication technology, the proposed technology significantly improves the storage efficiency and reduces the bandwidth consumption while maintaining the data integrity.
- Subjects
BANDWIDTH allocation; CORRELATION methods (Signal processing); DATA removal (Computer science); AUTOMATIC data collection systems; INFORMATION storage &; retrieval systems
- Publication
Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition), 2018, Vol 30, Issue 1, p127
- ISSN
1673-825X
- Publication type
Article
- DOI
10.3979/j.issn.1673-825X.2018.01.016