无线纳米传感器网络低冲突低复杂度接入控制方法

Low-collision and Low-complexity Medium Access Control Approaches for Wireless Nanosensor Networks

无线纳米传感器网络是一种新兴的传感器网络,有着非常重要的潜在应用.针对纳米传感器极低处理能力的特点,提出两种低复杂度媒质接入控制方法:无需时钟同步的变周期低冲突接入控制方法和时钟同步下的等周期无冲突接入控制方法.这两种方法通过接入节点与中继节点之间的简单控制包交互来实现较低的冲突概率甚至无冲突.

Wireless nanosensor networks（ WNSNs） are a newtype of sensor networks,and they have some very important applications. By considering the lowprocess capability of nanosensors,this paper presents two low-complexity medium access control（ MAC） approaches： variable-rate and low-collision MAC which needs not clock synchronization and equal-rate and collision-free MAC which needs clock synchronization. These two MAC approaches achieve lowcollision probability or even no collision through fewtransmissions of control frames between access nodes and relay node.