Experimental Analysis of Interference in Dual-Radio Wireless Sensor Networks

Kim, Jong-Won; Jeong, Yeonsik; Han, Seung-Jae

doi:10.1109/ccnc.2010.5421757

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…In [19], Kim et al experimentally measured and analyzed interference in the dual-radio WSN testbed. In [20], Wan et al proposed the use of multi-radio virtual sinks to effectively manage traffic overload.…”

Section: Related Workmentioning

confidence: 99%

Interference mitigation in wireless sensor networks using dual heterogeneous radios

2011

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Scalability is one of the most important features that future wireless sensor networks (WSNs) should provide, and clustering is widely considered as a viable approach for high scalability. In the cluster-based architecture, the cluster heads play a key role in relaying messages between the sensor nodes and the sink. While the cluster heads are involved in both intra-cluster and intercluster communication, the latter typically requires transmission over much longer distance than the former. In this paper, we consider a scenario in which each cluster head is equipped with dual radios: IEEE 802.15.4 and IEEE 802.11 for intra-cluster and inter-cluster communication, respectively. IEEE 802.11 links between the cluster heads and the sink provide a high capacity backbone for large-scale WSNs. IEEE 802.15.4 and IEEE 802.11 share a lot of similarities including CSMA/CA MAC. Their operating spectrum also overlaps at the 2.4 GHz ISM band, and this may cause interference. We first experimentally measure how severe the interference can be, when two radios are concurrently used in a WSN. We, then, propose an interference mitigation solution which relies on adaptive aggregation of packets and adaptive transmission scheduling. Through prototyping and experimental evaluation, we show that the proposed scheme significantly reduces the interferences between the two types of radios.

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Section: Related Workmentioning

confidence: 99%

Interference mitigation in wireless sensor networks using dual heterogeneous radios

2011

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“…In dual-radio wireless sensor networks [10], [11], [12], each sensor is equipped with two radios, including smallrange radio and large-range radio. The transmission ranges of small-range radio and large-range radio are denoted by r and R, respectively.…”

Section: System Modelmentioning

confidence: 99%

A Virtual Backbone Construction Heuristic for Maximizing the Lifetime of Dual-Radio Wireless Sensor Networks

Liu

Pham

Nguyen

2015

2015 International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP)

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Recently, the major challenge in the design of wireless sensor networks is to enhance the network lifetime. Many researchers have studied the problem of constructing virtual backbones, which are the backbones used for different time periods, in order to prolong the network lifetime. In this paper, we study the problem of constructing virtual backbones in dual-radio wireless sensor networks to maximize the network lifetime, where each sensor is equipped with two radio interfaces, including small-range and large-range radio. In addition, the backbone nodes can use small-range or largerange radio to maintain the backbone, and the remaining nodes use small-range radio to connect to the backbone to transmit the sensed data. Simulation results show that the proposed method provides good performance.

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“…In dual-radio wireless sensor networks [21][22][23], each sensor is equipped with two radios whose ranges are and , respectively, where < . Each sensor can use only one of the radios at the same time.…”

Section: System Modelmentioning

confidence: 99%

An Efficient Algorithm of Constructing Virtual Backbone Scheduling for Maximizing the Lifetime of Dual-Radio Wireless Sensor Networks

Liu

Pham

Nguyen

2015

International Journal of Distributed Sensor Networks

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Wireless sensor networks have often been used to monitor environmental conditions, such as temperature, sound, and pressure. Because the sensors are expected to work on batteries for a long time without charging their batteries, the major challenge in the design of wireless sensor networks is to enhance the network lifetime. Recently, many researchers have studied the problem of constructing virtual backbones, which are backbones used for different time periods, to prolong the network lifetime. In this paper, we study the problem of constructing virtual backbones in dual-radio wireless sensor networks to maximize the network lifetime, called the Maximum Lifetime Backbone Scheduling for Dual-Radio Wireless Sensor Network problem, where each sensor is equipped with two radio interfaces. The problem is shown to be NP-complete here. In addition, rather than proposing a centralized algorithm, a distributed algorithm, called a Dominating-Set-Based Algorithm (DSBA), is proposed for a wide range of wireless sensor networks to find a backbone when a new one is required. Simulation results show that the proposed algorithm outperforms some existing algorithms.

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Experimental Analysis of Interference in Dual-Radio Wireless Sensor Networks

Cited by 3 publications

References 4 publications

Interference mitigation in wireless sensor networks using dual heterogeneous radios

Interference mitigation in wireless sensor networks using dual heterogeneous radios

A Virtual Backbone Construction Heuristic for Maximizing the Lifetime of Dual-Radio Wireless Sensor Networks

An Efficient Algorithm of Constructing Virtual Backbone Scheduling for Maximizing the Lifetime of Dual-Radio Wireless Sensor Networks

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