MACAW: a media access protocol for wireless LAN's
SIGCOMM '94 Proceedings of the conference on Communications architectures, protocols and applications
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Link-level measurements from an 802.11b mesh network
Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications
Experimental evaluation of wireless simulation assumptions
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
Challenges for efficient communication in underwater acoustic sensor networks
ACM SIGBED Review - Special issue on embedded sensor networks and wireless computing
A MAC protocol for ad-hoc underwater acoustic sensor networks
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Experimental study of concurrent transmission in wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Frequency reuse underwater: capacity of an acoustic cellular network
Proceedings of the second workshop on Underwater networks
On the relationship between capacity and distance in an underwater acoustic communication channel
ACM SIGMOBILE Mobile Computing and Communications Review
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The relatively low spreading losses in underwater acoustic channels allows increased interference from distant interferers, which reduces the effectiveness of collision-avoidance MAC protocols. These collisions in turn reduce spatial reuse and network goodput, and increase power consumption. A competing channel effect, however, is the frequency-dependent absorption. The absorption can strongly suppress distant interferers, improving the effectiveness of collision-avoidance protocols. A third channel effect is frequency-dependent ambient noise, which reduces effectiveness for links consisting of widely separated nodes. RTS/CTS effectiveness generally decreases with decreasing acoustic frequency. We present analytic, numerical, and simulated results detailing how each of the major characteristics of the physical channel and physical layer affect the RTS/CTS effectiveness. We find that RTS/CTS effectiveness can drop to between 50%--90% for source and receiver separated by more than about two-thirds of the maximum packet range. The effect depends heavily on the acoustic frequency. We also present as a hypothesis an alternative physically based spreading model that distinguishes between desired signals, which are typically coherently detected via the largest of their multipath arrivals, and interfering signals whose effect on detection performance is related to the total energy in all of their multipath arrivals.