A new method to achieve reception of data integrity

Data integrity in wireless sensor network is very important. Recent research has indicated that, due to its conservative CSMA/CA channel access scheme and RTS/CTS mechanism, it is not suitable to achieve data integrity in wireless networks. In our paper we propose a mechanism to achieve information completeness. We address this challenge by applying a search information model that associates information capacities with LQI and Kappa, and use it to receive useful information to ensure network integrity. In the design, we also present a feedback mechanism for computing PRR under the physical interference model and we prove, under uniform random node distribution, an approximation factor for the effectiveness of data transmission to achieve information completeness. As the link there are many interfering factors, such as the environment, the effect of noise, the data may be lost, data integrity can not be achieved acceptable results. Though the specific improvement method, it can be to achieve an effective transfer of data and energy saving.