Emerging Commercial Applications Using the 60 GHz Unlicensed Band: Opportunities and Challenges

Bosco, B.; Emrick, R.; Franson, S.; Holmes, John; Rockwell, S.

doi:10.1109/wamicon.2006.351908

Cited by 17 publications

(6 citation statements)

References 4 publications

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“…The purpose here is to demonstrate the capabilities of the proposed technique to handle complex equivalent circuit configurations that contain a large number of components. It can open the door to the modeling of potential complex equivalent circuits suitable for emerging technologies (e.g., GaN) and/or for specific operating frequency bands such as the unlicensed 60-GHz band [34][35][36][37], while the selected HBT topologies are:…”

Section: A Transistor Equivalent Circuit Librarymentioning

confidence: 99%

Fuzzy neural-based approaches for efficient RF/microwave transistor modeling

Gaoua

Cheng

et al. 2009

Int J RF and Microwave Comp Aid Eng

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In today's RF and microwave circuits, there is an ever-increasing demand for higher level of system integration that leads to massive computational tasks during simulation, optimization, and statistical analyses, requiring efficient modeling methods so that the whole process can be achieved reliably. Since active devices such as transistors are the core of modern RF/microwave systems, the way they are modeled in terms of accuracy and flexibility will critically influence the system design, and thus, the overall system performance. In this article, the authors present neural-and fuzzy neural-based computer-aided design techniques that can efficiently characterize and model RF/microwave transistors such as field-effect transistors and heterojunction bipolar transistors. The proposed techniques based on multilayer perceptrons neural networks and c-means clustering algorithms are demonstrated through examples.

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Section: A Transistor Equivalent Circuit Librarymentioning

confidence: 99%

Fuzzy neural-based approaches for efficient RF/microwave transistor modeling

Gaoua

Cheng

et al. 2009

Int J RF and Microwave Comp Aid Eng

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“…Within this wide frequency range, several frequency bands are free for public use, which has made them more popular among others. Such a popular frequency is 60 GHz within the V-band spectrum, which was assigned as unlicensed by the FCC [9,10]. But, there are certain challenges while using this frequency for communication, which is the high attenuation for atmospheric absorption.…”

Section: Introductionmentioning

confidence: 99%

A Novel Design and Study of a Self-Complimentary Miniaturized Millimeter Wave Antenna for Body-Centric Networks

Alanazi

Khan

Rahman

et al. 2022

Wireless Communications and Mobile Computing

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A new self-complimentary compact antenna operating at 60 GHz within the millimeter wave frequency range has been presented in this paper. The design is intended for the wireless body-centric network (WBCN). The proposed compact design has a dimension of 4.5 × 6.03 × 1.59 mm3. The antenna was designed with multiple geometrical structures held upon a narrow feed line with a rectangular slot and parasitic elements to increase bandwidth. Free space simulations of the antenna produced optimistic results in terms of gain, radiation efficiency, and bandwidth; a maximum gain of 6.7 dB was achieved with an efficiency of 84.5%. Parametric studies were carried out to better understand its nature by modifying the key design aspects and comparing the outcomes. A 3D human torso phantom was virtually created with natural human body properties, and the on-body performance of the design was tested by placing the antenna in its near field. With some slight deviation from their peak performance, on-body simulations displayed better results in most of the cases. The antenna was positioned five different gaps from the torso for future investigations. The result of the distance-based study was amazingly good as the antenna performance was consistent throughout all distances. 10.77 GHz of bandwidth is found for the closest distance to the human torso, while the on-body radiation efficiency is also outstanding; the minimum radiation efficiency recorded is 73.78 when the antenna is just a couple of millimeters away. Overall, the comparison shows that the antenna worked best when it was placed only 2 mm apart from the body. Investigation indicates the antenna is a promising candidate for BCN applications because of its wider bandwidth and better on-body efficiency.

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“…By using higher frequency bands, such as the millimeter wave (mmWave) bands between 30 and 300 GHz, and bringing the network closer to users by a dense deployment of small cells [4], [5], HCNs can significantly boost the overall network capacity due to less interference and higher data rates. With huge bandwidth available in the mmWave band, small cells at mmWave frequencies are able to provide multi-gigabit communication services, such as uncompressed and high-definition video transmission, high speed Internet access, and wireless gigabit Ethernet for laptops and desktops, and have attracted considerable interest from academia, industry, and standards bodies [6], [7]. Rapid development in complementary metaloxide-semiconductor radio frequency integrated circuits [8], [9], [10] accelerates the industrialization of mmWave communications.…”

Section: Introductionmentioning

confidence: 99%

Exploiting Device-to-Device Communications in Joint Scheduling of Access and Backhaul for mmWave Small Cells

Niu

Gao

et al. 2015

IEEE J. Select. Areas Commun.

142

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With the explosive growth of mobile data demand, there has been an increasing interest in deploying small cells of higher frequency bands underlying the conventional homogeneous macrocell network, which is usually referred to as heterogeneous cellular networks, to significantly boost the overall network capacity. With vast amounts of spectrum available in the millimeter wave (mmWave) band, small cells at mmWave frequencies are able to provide multi-gigabit access data rates, while the wireless backhaul in the mmWave band is emerging as a cost-effective solution to provide high backhaul capacity to connect access points (APs) of the small cells. In order to operate the mobile network optimally, it is necessary to jointly design the radio access and backhaul networks. Meanwhile, direct transmissions between devices should also be considered to improve system performance and enhance the user experience. In this paper, we propose a joint transmission scheduling scheme for the radio access and backhaul of small cells in the mmWave band, termed D2DMAC, where a path selection criterion is designed to enable device-to-device transmissions for performance improvement. In D2DMAC, a concurrent transmission scheduling algorithm is proposed to fully exploit spatial reuse in mmWave networks. Through extensive simulations under various traffic patterns and user deployments, we demonstrate D2DMAC achieves near-optimal performance in some cases, and outperforms other protocols significantly in terms of delay and throughput. Furthermore, we also analyze the impact of path selection on the performance improvement of D2DMAC under different selected parameters.

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Emerging Commercial Applications Using the 60 GHz Unlicensed Band: Opportunities and Challenges

Cited by 17 publications

References 4 publications

Fuzzy neural-based approaches for efficient RF/microwave transistor modeling

Fuzzy neural-based approaches for efficient RF/microwave transistor modeling

A Novel Design and Study of a Self-Complimentary Miniaturized Millimeter Wave Antenna for Body-Centric Networks

Exploiting Device-to-Device Communications in Joint Scheduling of Access and Backhaul for mmWave Small Cells

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