Sift: A MAC Protocol for Event-Driven Wireless Sensor Networks

Jamieson, Kyle; Balakrishnan, Hari; Tay, Y. C.

doi:10.1007/11669463_20

Cited by 238 publications

(163 citation statements)

References 14 publications

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“…CSMA protocols can efficiently reduce collisions using clear channel assessment and randomized backoff, but intrinsically cannot eliminate all collisions, because of hidden terminal problems, as well as collisions when multiple nodes sense the medium free at the same time. Previous work [3] demonstrates that CSMA based protocols cannot avoid such collisions when the number of concurrent transmission grows.…”

Section: Related Workmentioning

confidence: 99%

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ACR: Active Collision Recovery in Dense Wireless Sensor Networks

Zhou

Stankovic

2010

2010 Proceedings IEEE INFOCOM

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Abstract-Packet collision causes packet loss and wastes resources in wireless networks. It becomes even worse in dense WSNs, due to burst-traffic and congestion around sinks. In this paper, we propose a novel protocol to recover collided packets. Our experiments on a testbed reveal that collisions between long packets and short packets cause a partial error pattern on collided packets, which can be used for efficient recovery. We give a theoretical analysis that demonstrates that combining such collision recovery with CSMA protocols achieves a significant performance improvement. Then, we design ACR, an Active Collision Recovery protocol, which actively converts most potential collisions into LS-collisions, and then applies a lightweight FEC scheme to recover collided packets with such partial error patterns. We implement ACR on a Tmote testbed, and compare its performance with other packet recovery schemes. Results show that ACR significantly reduces the number of retransmissions, and achieves around 25% improvement on transmission efficiency over other schemes.

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Section: Related Workmentioning

confidence: 99%

“…We first describe how to optimize the probability of successful transmission π LS p (N ), according to Equation 3. We assume that all variable values are given, except the distributions P L (t) and P S (t).…”

Section: Slot Selection Distributionmentioning

confidence: 99%

ACR: Active Collision Recovery in Dense Wireless Sensor Networks

Zhou

Stankovic

2010

2010 Proceedings IEEE INFOCOM

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“…In the literature on low-power embedded sensor systems such as wireless sensor networks, medium access control protocols are one of the more heavily studied areas, evident in the large number of proposals for MAC protocols (e.g., [11,15,29,30,44]); despite this large interest therein however, many proposed MAC protocols have only been implemented in simulation.…”

Section: Related Researchmentioning

confidence: 99%

Portability in MAC protocol and transceiver software implementations for LR‐WPAN platforms

Schoofs

Stanley-Marbell

2010

Softw Pract Exp

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In a variety of emerging networked computing system domains over the years, there have been bursts of activity on new medium access control (MAC) protocols, as new communication transceiver technologies with greater data‐movement performance or lower power dissipation have been introduced. To enable implementations flexible to evolving standards and improving application‐domain insight, such MAC protocols are typically initially implemented in software, and interface between applications or system software, typically executing on an embedded processor or microcontroller, and the evolving radio transceiver hardware. Many challenges exist in implementing MAC protocols across evolving or competing transceiver hardware implementations and processor architectures. Some of these challenges are peculiar to the requirements of MAC protocols, and others are a result of the plethora of system and processor architectures in the embedded systems domain. This article studies the challenges facing software implementations of MAC protocols running on embedded microcontrollers, and interfacing with radio transceiver hardware. Experience with an implementation of the IEEE 802.15.4 MAC across three hardware platforms with different processor, system, and systems software architectures is presented, focusing on implementation approach and interfaces. Pitfalls are pointed out, and guidelines are provided for ensuring that new MAC implementations are easily portable across processor architectures and transceiver hardware. Copyright © 2010 John Wiley & Sons, Ltd.

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“…Hence, they do not take the latency into account in their proposal. To the best of our knowledge, SIFT [9] is the first MAC protocol which is designed for event-driven WSN. The main objective of SIFT is to reduce latency in the monitoring application where there are many simultaneous communications.…”

Section: Related Workmentioning

confidence: 99%

A Low Latency MAC Scheme for Event-Driven Wireless Sensor Networks

Guyennet

Felea

et al. 2007

Mobile Ad-Hoc and Sensor Networks

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Abstract. In this paper, we present a low latency media access control scheme which we call LLMAC (Low Latency MAC) for event-driven wireless sensor networks (WSN). In this kind of WSN, sensors do not regularly send data to the sink. They send a burst data only when there is an event in the monitoring area. It takes time for this burst data to arrive to the sink. Normally, these events are critical and we hope to obtain the information on the event in the shortest delay. Hence, the latency is considered to be a crucial requirement in event-driven WSN contrary to the traditional wireless networks where the fairness is the most important requirement. Our proposal LLMAC makes a trade-off between fairness and latency in order to offer a shorter latency transmission when certain events happen. The performance evaluation shows that our proposal reduces the latency in comparison to existing MAC protocols.

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Sift: A MAC Protocol for Event-Driven Wireless Sensor Networks

Cited by 238 publications

References 14 publications

ACR: Active Collision Recovery in Dense Wireless Sensor Networks

ACR: Active Collision Recovery in Dense Wireless Sensor Networks

Portability in MAC protocol and transceiver software implementations for LR‐WPAN platforms

A Low Latency MAC Scheme for Event-Driven Wireless Sensor Networks

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