Optimization method for smart antenna use in WiMAX vehicular communications

Constantinescu, Mihai; Borcoci, Eugen

doi:10.1109/iccomm.2012.6262555

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…In this work, the experiment results are consolidated in multidimensional graphs, named decision spaces [18]. These decision spaces present in aggregated form the performance obtained in a target tracking scenario, related on a specific situation.…”

Section: Proposed Approach Related To Optimum Operability Of a Target...mentioning

confidence: 99%

Comparative studies for YOLOv4 target tracking algorithm performance

Constantinescu¹,

Constantinescu²,

Constantinescu³

2023

Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI

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This paper presents a detailed experimental study on operability of a target tracking system based on YOLOv4 for target detection. This work aimed to determine multi-dimensional regions where the two parameters of YOLOv4 algorithm, detection threshold and IOU threshold, allow obtaining the maximum of performance from the detection algorithm, represented by 100% detection for the overall possible detected targets. Low values of these parameters allow more detections, but also increased the number of misclassifications, counted as wrong detections. On contrast, high values of these parameters increase the detection accuracy, but on the cost of total number of detected targets. Considering that each of these parameters can have at least 9 values, 0.1 to 0.9, resulting in 81 combinations, the identification of local and global maxima and minima and of an operational zone, in which the system performance is stable, could be considered as priorities on context of optimal use of the overall target tracking system. Given the high diversity of graphics representation for the system performance in respect with the variance of these two parameters, each of them influencing in an inter-dependent mode the overall performance of the system, the authors propose that the results of each experimental complex scenario to be consolidated in 3D graph, named decision space, one for each environmental context, in which each point is the result of system efficiency reported to a specific pair of values of the mentioned algorithm parameters. These decision spaces present in aggregated form the performance obtained in a target tracking scenario, related on a specific environment, but considered all possible parameter values. The results can be used as a method of pre calibrating the target tracking system prior of effectively using it for its main purpose.

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Section: Proposed Approach Related To Optimum Operability Of a Target...mentioning

confidence: 99%

Comparative studies for YOLOv4 target tracking algorithm performance

Constantinescu¹,

Constantinescu²,

Constantinescu³

2023

Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies XI

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“…In order improve the QoS in vehicular communication by smart antennas optimization method is proposed in Constantinescu and Borcoci [21]. Author is focused on the issues related to the mobility management, scheduling tasks, neighbor discovery and interference range and also the base station issues like availability of bandwidth and coverage, velocity Vs throughput, availability/continuity of service.…”

Section: Research In Qos Of Smart Antennamentioning

confidence: 99%

Review of Research Techniques to Improve System Performance of Smart Antenna

Shivapanchakshari¹,

Aravinda²

2017

OJAPr

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Today, the significance of the wireless communication is known all over the world. In order to achieve the better communication, many techniques and methods have been introduced. Among these techniques, smart/adaptive antennas are trending topic in the research domain. The smart antennas consist of various antennas arrays and have the ability to optimize the radiation and reception of the desired signals dynamically. Also, in order to avoid or mitigate the interferences, smart antennas can introduce nulls in the interferers direction by adaptive updating of the weights linked at every antenna element. The smart antennas can also enhance the quality of reception and reduce the dropped calls. This paper discusses the various survey topics related to smart antennas, Adaptive Beam Forming (ABF) algorithm etc. Also the various existing researches are discussed to know the research gap for future research scope.

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“…The handover is key feature and unique feature of the cellular mobile communication system [1][2][3]. The handover means the process of a call from one cell to another cell when the user moves in the cellular coverage area.…”

Section: Introductionmentioning

confidence: 99%