An Improved Data Aggregation Scheme for Wireless Sensor Networks Based on Robust Chinese Remainder Theorem

In wireless sensor networks (WSNs), energy efficiency, reliability, and non-plaintext transmission of the sensed data are major concerns, and all three of them are indispensable. Based on robust Chinese Remainder Theorem (RCRT), this paper proposes an improved data aggregation scheme to satisfy the requirements of energy efficiency, reliability, and non-plaintext transmission simultaneously. Compared with the existing RCRT-based data aggregation scheme, our improved RCRT-based data aggregation scheme tolerates an unrestricted error at the expense of certain energy saving.