论文标题
L-MAC：无线传感器网络的位置感知Mac协议
L-MAC: Location-aware MAC Protocol for Wireless Sensor Networks
论文作者
论文摘要
本文介绍了用于无线传感器网络的位置MAC协议的设计，实现和性能评估。 L-MAC是TDMA和CSMA的组合，同时通过根据其位置信息将时间插槽分配给传感器节点，从而抵消了时间插槽分配的高间接。该设计避免了节点迁移率和节点故障产生的时间插槽分配的高计算复杂性。无线传感器网络占据的区域分为块，每个块都与块间插槽和一个块内插槽相关联。在块间插槽中，传感器节点保持活跃，并从块外的节点接收数据包。在块内插槽中，传感器节点与CSMA下同一块中的同伴节点进行通信。传感器节点在所有其他时间段内保持睡眠状态，除非它们有可发送的流量。 L-MAC在NS-2中实施和评估。
This paper presents the design, implementation and performance evaluation of a location MAC protocol, called L-MAC, for wireless sensor networks. L-MAC is a combination of TDMA and CSMA while offsetting the high overhead of time slot assignment by allocating the time slots to sensor nodes based on their location information. This design avoids high computation complexity of time slot assignment incurred by node mobility and node failure. The area which the wireless sensor network occupies is divided into blocks and each block is associated with an inter-block time slot and an intra-block time slot. In the inter-block time slot, the sensor nodes stay active and receive the packets from nodes outside of the block. In the intra-block time slot, the sensor nodes communicate with peer nodes in the same block under CSMA. Sensor nodes stay sleep in all other time slots unless they have traffic to send. L-MAC is implemented and evaluated in NS-2.
