Z-MAC: A hybrid MAC for wireless sensor networks

被引：387

作者：

Rhee, Injong ^{[1
,2
]}

Warrier, Ajit ^{[2
]}

Aia, Mahesh

Min, Jeongki ^{[2
]}

Sichitiu, Mihail L. ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA

[2] N Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA

来源：

IEEE-ACM TRANSACTIONS ON NETWORKING | 2008年 / 16卷 / 03期

基金：

美国国家科学基金会;

关键词：

CSMA; MAC; TDMA; wireless sensor networks;

D O I：

10.1109/TNET.2007.900704

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents the design, implementation and performance evaluation of a hybrid MAC protocol, called Z-MAC, for wireless sensor networks that combines the strengths of TDMA and CSMA while offsetting their weaknesses. Like CSMA, Z-MAC achieves high channel utilization and low latency under low contention and like TDMA, achieves high channel utilization under high contention and reduces collision among two-hop neighbors at a low cost. A distinctive feature of Z-MAC is that its performance is robust to synchronization errors, slot assignment failures, and time-varying channel conditions; in the worst case, its performance always falls back to that of CSMA. Z-MAC is implemented in TinyOS.

引用

页码：511 / 524

页数：14

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