Power optimization in sensor networks for passive radar applications

Alirezaei, Gholamreza; Mathar, Rudolf; Ghofrani, Pouya

doi:10.1109/wisee.2013.6737565

Cited by 9 publications

(2 citation statements)

References 6 publications

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“…The power allocation for sensor networks is also the topic of many papers, usually aiming at minimizing the detection error with respect to a global or local power budget [3], [4]. A WSN deployed for target detection might also be interpreted as a localization system, where the location of the sensors and their coverage areas are known.…”

Section: R L S Imentioning

confidence: 99%

A fast energy-aware multi-target detection technique using binary wireless sensors

Ghofrani

Schmeink

2017

2017 International Symposium on Wireless Communication Systems (ISWCS)

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Abstract-The paper proposes a fast multi-target detection technique based on simultaneous sensor data fusion for a binary wireless sensor network in a pre-deployed configuration. The synchronous binary sensors are circularly arranged in an area with the sink node on the central axis such that the line-ofsight communication dominates. All the binary sensors employed for detecting rapidly changing targets are similar, transmit simultaneously and operate on the same narrow frequency band without any specific ID assigned by a central control unit or the sink node, where the latter is affected by additive white Gaussian noise (AWGN). Each sensor is assumed to cover a previously known zone for target detection and it has no cooperation with other sensors. The proposed communication model including the channel estimation process and the devised distributed power allocation method, is mathematically described and the conducted simulations comprehensively confirm the good performance of the model with respect to the channel estimation and equalization errors at the transmitter and the AWGN power at the receiver.

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Section: R L S Imentioning

confidence: 99%

A fast energy-aware multi-target detection technique using binary wireless sensors

Ghofrani

Schmeink

2017

2017 International Symposium on Wireless Communication Systems (ISWCS)

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“…The optimal power allocation for sensor networks, which are used for passive radar applications, has been recently investigated analytically in [1] and subsequently extended in [16] with joint power constraints. This solution includes a total power limitation for the entire sensor network as well as an individual maximum-power limitation for each SN.…”

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confidence: 99%

Optimum Power Allocation With Sensitivity Analysis for Passive Radar Applications

2014

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In this paper, we investigate the power allocation problem in distributed sensor networks and give a sensitivity analysis for perfect and imperfect knowledge of system parameters. As it is common for sensors with weak power-supplies, constraints by sum and individual power-range limitations are imposed. The power allocation problem leads to a signomial program, and is analytically solved by a Lagrangian setup. Typical examples of such networks are passive radar systems with multiple nodes, whose aim is to detect and classify target signals. For each sensor node, an amplify-and-forward strategy for the received target signal is proposed. This per-node information is transmitted over a communication channel and combined at a fusion center. The fusion center carries out the final decision about the type of the target signal by a best linear unbiased estimator and a subsequent classification. In contrast to approaches in the literature, which combine discrete local decisions into a single global one, the approach in this paper offers many advantages, ranging from the simplicity of its implementation to the achievement of an optimal solution in closed-form. In addition, it allows for a sensitivity analysis of the whole sensor network under variations of different system parameters.Index Terms-Closed-form optimization, energy-efficient system-design, distributed radar, network resource management, information fusion.

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Optimizing Lifetime and Power Consumption for Sensing Applications in Extreme Environments

Alirezaei

Mathar

Taghizadeh

2017

Wireless Sensor Systems for Extreme Environments

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Power optimization in sensor networks for passive radar applications

Cited by 9 publications

References 6 publications

A fast energy-aware multi-target detection technique using binary wireless sensors

A fast energy-aware multi-target detection technique using binary wireless sensors

Optimum Power Allocation With Sensitivity Analysis for Passive Radar Applications

Optimizing Lifetime and Power Consumption for Sensing Applications in Extreme Environments

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