摘要
拓扑控制通过调节节点的发送功率,减少信号干扰,降低节点能量消耗,提高网络传输能力。该文通过考察自组网中几种经典的拓扑控制算法,研究了拓扑图能保证连通具有较小的节点度和传输半径。OPNET网络仿真平台仿真发现,拓扑控制的效能受网络中每秒的发包个数影响,当每秒发包个数大于一定值时,拓扑控制将提高网络吞吐量。
Topology control tries to reduce radio interference, lower energy consumption and enhance network capacity by adjusting transmission power of nodes. This paper studies some classical topology control algorithms and finds that the resulted topology has several nice properties such as connectivity, less node degree and transmission range. Simulation results show that when the delivery rate of packets in the network is greater than a certain value, which affects the effectiveness of topology control. The network＇s throughput can be significantly improved.
出处
《计算机工程》
CAS
CSCD
北大核心
2009年第7期110-112,共3页
Computer Engineering
基金
国家自然科学基金资助项目(60703097)
湖南省自然科学基金资助项目(06JJ4078)
关键词
自组网
拓扑控制
吞吐量
网络仿真
Ad hoc networks
topology control
throughput
network simulation
