摘要
功率控制是在保证一定通信质量的前提下,通过调节移动节点的发送功率减少能量消耗,降低无线通信干扰,延长网络工作时间。蚁群算法是一种新型模拟进化算法,能够较快找到最优解。通过改进基于蚁群的功率控制算法,能够更快的收敛到最小功率;根据当前功率来缩小问题搜索空间,更适应移动Ad hoc的需求;并依据报文长度,动态调整节点的发送功率,提高传输的可靠性。将仿真结果,与其它控制算法进行了较全面的比较。
Power control aims to reduce energy consumption and wireless interference, increase network lifetime by adjusting the transmission power of mobile nodes, subject to connectivity constraints, Ant colony algorithms is a novel algorithm for evolutionary simulation with characteristics such as optimization. The improvement of ant-based power control algorithms can converge quickly to the minimum power; According to current power, the number of calculation is reduced, and the reliability of transmission is increased by adjusting the transmission power based on the length of the message. After simulating, an overall performance is presented in comparison with other control algorithms.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第19期4664-4666,4676,共4页
Computer Engineering and Design
关键词
功率控制
蚁群算法
移动自组网
功率分配
发射功率
power control
ant algorithms
mobile Ad hoc network
power assignment
transmission power
