关键词: 传感器网络 拓扑控制 干扰

Abstract:

Topology control in wireless sensor networks is a very important technology. Interference plays an important role in the application of wireless senso  r networks, because large interference will increase communication signal collisions and induce great delay in data delivering. But most current literatures do not take interference into consideration. In the paper, we mainly address interference-aware topology control problems in wireless sensor networ ks. According to the factors of sensor network communications, we design an optimum centralized algorithm and a distributed sub-optimum interferenceaware CDS-based topology control algorithm suitable for realistic applications. We make simulations of our two interferenceaware topology control algorithms and make comparisons with the existing algorithms. The simulation results show that our interference-aware topology control algorithms have good perfor    mance on network interference, energy and delay.

Key words: wireless sensor network, topology control, interference