%0 Journal Article
%T Fine-grained data integrity check method for power cloud computing<br>一种面向电力云的细粒度数据完整性检验方法
%A WU Lie
%A YANG Yun
%A <br>吴烈
%A 杨云
%J 重庆邮电大学学报(自然科学版)
%D 2012
%I 
%X To adapt to the characteristic of large delay in deep space communications, a non-feedback data transmission protocol based on fountain codes and parallel paths is presented. This protocol can avoid the repeated process of handshake between the sender and the recipient, thus shorten the data transmission time. Moreover, through the deployment of multiple relays between the sender and recipient, parallel paths can be established for the sake of continuous data transmission. Parallel paths can overcome the shortcoming of single path which is vulnerable to link outage and takeAiming at the challenges the power cloud computing system is facing, combining with the power cloud security model, and researching the data integrity in the power cloud data storage system, the authors propose a multi-error integrity checking method based on combination. The performance analysis shows that this method uses the Hash data compression to reduce the compression rate, reduce the detection storage, and increase the number of errors of detecting the data object. full advantage of link resources. The simulation results demonstrate: if the coding overhead is slightly larger than the packet loss rate, the original data can be accurately recovered with high probability at the recipient. Increasing number of parallel paths can improve transmission capacity and decrease transmission delay.
%K power cloud computing
%K data integrity
%K Hash
%K error detection<br>电力云
%K 数据完整性
%K 哈希（Hash)
%K 错误检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=5C2694A2E5629ECD6B59D7B28C6937AD&aid=F1066E608B6765706A9138E054CB3FC8&yid=99E9153A83D4CB11&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=7D2B339649A57040&eid=E008F9AD6D4B96EF&journal_id=1673-825X&journal_name=重庆邮电大学学报(自然科学版)&referenced_num=0&reference_num=0