@inproceedings{Ai-2004-ISCC, author = "J. Ai and J. Kong and D.Turgut", title = "An Adaptive Coordinated Medium Access Control for Wireless Sensor Networks", booktitle = "The 9th IEEE Symposium on Computers and Communications (ISCC 2004)", location = "Alexandria, Egypt", month = "June", year = "2004", pages = "214-219", abstract = {In this paper, we have developed Adaptive Coordinated Medium Access Control (AC-MAC), a contention-based Medium Access Control protocol for wireless sensor networks. To handle the load variations in some real-time sensor applications, ACMAC introduces the adaptive duty cycle scheme within the framework of sensor-MAC (S-MAC). The novelty of our protocol is that it improves latency and throughput under a wide range of traffic loads while remaining as energy-efficient as S-MAC. We illustrate such optimized trade-offs of AC-MAC via extensive simulations performed over wireless sensor networks. Our simulation results show that AC-MAC is as energy-efficient as S-MAC while its latency and throughput are always trying to follow the classic IEEE 802.11 MAC (no duty cycle), which outperform the S-MAC (fixed duty cycle), specially under the heavy load.}, }