A Study on Connectivity Performance of CDMA-Based Wireless Sensor Networks

• Main Authors: Yao-Min Tseng, 曾耀民
• Other Authors: Yung-Fa Huang
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/67406551690673998487

碩士 === 朝陽科技大學 === 網路與通訊研究所 === 95 === In this thesis, we would like to investigate the connectivity performance of CDMA-based wireless sensor networks (WSN). The deployment variation modeled by 2D Gaussion distribution with zero-mean is applied to the triangular, grid and hexagonal topologies. The length of spreading codes would be studied and designed to perform 3-connectivity performance for the WSN. We evaluate the connection performance with SIR_0,3-con, the minimum requirement of SIR, SIR0 for the 3-connectivity. Simulation results show that the hexagonal topology suffers a degradation of -2.4 dB, when the failure rate from 0 to 0.1 with small variation �箈 =0.05. However, both the triangular and grid topologies show a robust performance of fault tolerance, when the failure rate is increased from 0 to 0.5 with �箈 �T0.1.