Quorum-Based Energy Saving MAC Protocol Design for Wireless Sensor Networks

Chao, Chih–Min; Lee, Yi-Wei

doi:10.1109/euc.2008.99

Cited by 14 publications

(32 citation statements)

References 28 publications

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“…The maximum distance between any two successive elements for a sensor node that follows RI(X) is given in (9). The maximum distance between any two successive elements for a sensor node that follows CI(1) is given in (10). Therefore, the maximum distance between two successive common elements (that is, NS) is the sum of (9) and (10) minus one (the common element).…”

Section: Nsmentioning

confidence: 99%

Energy-Efficient Quorum-Based MAC Protocol for Wireless Sensor Networks

Annabel¹,

Murugan²

2015

ETRI J

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The reliability of sensor networks is generally dependent on the battery power of the sensor nodes that it employs; hence it is crucial for the sensor nodes to efficiently use their battery resources. This research paper presents a method to increase the reliability of sensor nodes by constructing a connected dominating tree (CDT), which is a subnetwork of wireless sensor networks. It detects the minimum number of dominatees, dominators, forwarder sensor nodes, and aggregates, as well as transmitting data to the sink. A new medium access control (MAC) protocol, called Homogenous Quorum‐Based Medium Access Control (HQMAC), is also introduced, which is an adaptive, homogenous, asynchronous quorum‐based MAC protocol. In this protocol, certain sensor nodes belonging to a network will be allowed to tune their wake‐up and sleep intervals, based on their own traffic load. A new quorum system, named BiQuorum, is used by HQMAC to provide a low duty cycle, low network sensibility, and a high number of rendezvous points when compared with other quorum systems such as grid and dygrid. Both the theoretical results and the simulation results proved that the proposed HQMAC (when applied to a CDT) facilitates low transmission latency, high delivery ratio, and low energy consumption, thus extending the lifetime of the network it serves.

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Section: Nsmentioning

confidence: 99%

Energy-Efficient Quorum-Based MAC Protocol for Wireless Sensor Networks

Annabel¹,

Murugan²

2015

ETRI J

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“…QMAC [5] enables sensor nodes to have different active/sleep frequencies. Nodes running QMAC are classified into different coronas according to their hop count distances to the sink.…”

Section: T-macmentioning

confidence: 99%

“…Thus, it is necessary to design energy-efficient protocols for wireless sensor networks. In the literature, many protocols have been proposed to extend the network lifetime of sensor networks in their deployment protocols [12,18,21], routing protocols [2,9,17], and power-efficient MAC protocols [3,4,5,7,13,15,20,23,26].…”

Section: Introductionmentioning

confidence: 99%

“…Since idle listening has been identified as a major reason for energy wastage, several solutions [3,5,7,13,15,20,23,26] managed to reduce the time a sensor node spends in idle listening. Some of them [5,13,20,23,26] required time synchronization among sensor nodes. Since time synchronization is essential for many sensor applications, it is natural for a synchronous MAC protocol to be used.…”

Section: Introductionmentioning

confidence: 99%

“…Such a regular wake up frequency is not a satisfactory design since different nodes may have different traffic loads. There exist some proposals [5,26] that aim to produce different active/sleep schedule for different sensor nodes. However, they either fail to provide good enough performance or cannot adjust the schedule dynamically.…”

Section: Introductionmentioning

confidence: 99%

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Load-aware energy-efficient medium access control for Wireless Sensor Networks

Chao

Lee

2012

IJAHUC

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In wireless sensor networks, sensors are usually battery-powered. Therefore, it is essential to reduce energy consumption to prolong network lifetime. In traditional power saving MAC protocols, such as IEEE 802.11 Power Saving Mode and S-MAC, sensor nodes must wake up at every beacon interval to check if they are involved in any transmission. Such a fixed active/sleep mechanism fails to adjust a sensor node's sleep duration based on its traffic load. Thus, these protocols suffer from either higher energy consumption or higher latency. In this paper, we propose a Load-aware Energy-efficient MAC protocol (LE-MAC) which utilizes fuzzy control and the quorum concept. The LE-MAC protocol utilizes fuzzy control to dynamically adjust the active/sleep ratio of each sensor node. The duration for a node to stay in sleep mode is increased to conserve energy when its traffic load is light. On the contrary, the ratio of operating in active mode is increased to reduce transmission latency as traffic load is getting heavier. The quorum concept is adopted to guarantee that two sensor nodes with different active/sleep ratios can meet and communicate with each other. Simulation results verify that our LE-MAC can adapt to various network traffic loads. Furthermore, LE-MAC achieves significant performance improvements in energy consumption, transmission successful ratio, and transmission delay.

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A Group-Less and Energy Efficient Communication Scheme Based on Wi-Fi Direct Technology for Emergency Scenes

Pan

Wang

2019

IEEE Access

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Recently, smartphones are commonly equipped with Wi-Fi direct modules, which can be used to support infrastructure-less communications. Considering an emergency scene, communication infrastructures are damaged or unable to operate. Affected people in the emergency site cannot communicate with each other and with the outside world until rescue personnel establishes an emergency network for them. In this paper, we aim to provide an emergency communication method based on Wi-Fi direct technology. Originally, Wi-Fi direct capable devices rely on a Wi-Fi direct group mechanism to operate. However, we observe that forming Wi-Fi direct groups may not be appropriated in the emergency scenario. Besides, Wi-Fi direct capable devices carried by affected people should operate in power saving mode when emergency. In this paper, we model the target scenario as an emergency Wi-Fi direct device scheduling (EWDS) problem. We then propose centralized and distributed schemes to solve the EWDS problem. The proposed schemes schedule devices' active and sleep timings with the guarantee that all devices can join the network within a bounded time and devices can exchanges packets with each other effectively. Furthermore, by the proposed distributed schemes, devices can operate locally and unsynchronized without a central controller. We evaluate the proposed schemes by simulations and prototyping implementation, and the results demonstrate the effectiveness of our designs.

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Quorum-Based Energy Saving MAC Protocol Design for Wireless Sensor Networks

Cited by 14 publications

References 28 publications

Energy-Efficient Quorum-Based MAC Protocol for Wireless Sensor Networks

Energy-Efficient Quorum-Based MAC Protocol for Wireless Sensor Networks

Load-aware energy-efficient medium access control for Wireless Sensor Networks

A Group-Less and Energy Efficient Communication Scheme Based on Wi-Fi Direct Technology for Emergency Scenes

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