Deployment strategy for Wireless Sensor Networks is an important issue. Most research works are based on the horizontal Scheme. However, many factors including the height of node's antenna, one of the vertical factors, can also affect the indoor communication performance of sensor nodes, which is a main consideration to design an appropriate deployment scheme. In this paper, the variance of coverage caused by the different antenna's height is analyzed, using log-distance indoor radio propagation model at 2.4GHz ISM band. The relationship between effective communication range and effective sensing range is also discussed. Based on traditional plane deployment strategies, a novel method is proposed to avoid the sensing collapsars. It first calculates the effective communication ranges, and eliminates the useless antenna's height parameter which can not affect the full coverage of sensing area and communication area. Then, it projects the residual height parameter to the plane and uses classical Deploy Rules to place the sensor nodes. Experiments and simulations indicate that this deployment strategy is useful and effective.