摘要： 针对无线传感器网络中的隐终端和延迟问题，提出一种基于功率控制机制的改进MAC协议。节点在SMAC协议的基础上通过功率控制算法在每个节点所保存的功率等级表中动态地选择合适的功率值作为其发射功率，从而避免了隐终端和延迟问题。仿真结果表明，与SMAC协议相比，改进协议能提高网络的吞吐量，降低源节点到目的节点的端到端延迟。
关键词:
无线传感器网络,
介质访问控制,
功率控制算法,
隐终端,
延迟
Abstract: In view of Wireless Sensor Network(WSN) in hidden terminal and delay question, a kind of progressive MAC protocol based on power control is proposed. The node on the basis of the SMAC protocol through the power control algorithm in each node to save power scale dynamically selects the appropriate power value as part of its transmission power, thus avoids the hidden terminal and delay question. Simulation result shows that compared with SMAC protocol, the improved protocol improves the network throughput, and reduces the source node to destination node of the end to end delay.
Key words:
Wireless Sensor Network(WSN),
Media Access Control(MAC),
power control algorithm,
hidden terminal,
delay
中图分类号:
严谨, 李平. 能量有效的无线传感器网络MAC协议[J]. 计算机工程, 2010, 36(23): 98-100.
YAN Jin, LI Beng. Energy Efficient MAC Protocol for Wireless Sensor Network[J]. Computer Engineering, 2010, 36(23): 98-100.