5G or Wi-Fi for HA/DR in the 60 GHz Band?

Kabir, Fahad; Kim, Seungmo

doi:10.1109/hst47167.2019.9032948

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…NR-U with the Listen-Before-Talk (LBT) channel access mechanism does not have any adverse impact on WiGig performance in terms of throughput and latency, which demonstrates that NR-U design fulfills the fairness coexistence objective. In a recent work [16], an author of this paper provided a preliminary analysis framework for calculation of the data rates achieved by 5G and Wi-Fi under coexistence with each other. Via extension of the framework, this paper focuses on finding the exact staitstical models for the downlink performance achieved under coexistence.…”

Section: Related Workmentioning

confidence: 99%

Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band

Verboom,

Kim

2020

Preprint

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The 60 GHz band (57-71 GHz) has been attracting considerable research interest thanks to the bandwidth abundance and ruling as an unlicensed band. The 60 GHz Wi-Fi (also known as WiGig) and 5G New Radio Unlicensed (NR-U) are among the key access technologies that will operate in the band. This paper inspects the downlink performance of the two technologies under inter-technology interference from each other in 60 GHz band. Based on a dense small-cell setting, this paper finds stochastic models for signal-to-interference-plusnoise ratio (SINR) and data rate. Via simulations, this paper discovers that the downlink SINR and data rate follow Gaussian mixture distributions with three modes representing (i) severely interfered, (ii) mildly interfered, and (iii) not interfered UEs.

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Section: Related Workmentioning

confidence: 99%

Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band

Verboom,

Kim

2020

Preprint

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“…Some works suggested that with the help of the relay nodes the success rate of transmission and the network lifetime can be increased in WBAN. To analyze the human RF exposure on the internet of battlefield things one comprehensive analysis framework was provided where operating frequency is used as 60 GHz with a more directive antenna radiation pattern [34] [35]. An extensive review of SAR for different commercial wearable devices was provided where SAR comparison for the devices were shown at different carrier frequencies [36].…”

Section: Multi-hop Communications For Emf Reductionmentioning

confidence: 99%

Mitigation of Human RF Exposure in Wearable Communications

Sharif¹,

Kim²

2020

Preprint

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A major concern regarding wearable communications is human biological safety under exposure to radio frequency (RF) radiation generated by wearable devices. The biggest challenge in the implementation of wearable devices is to reduce the usage of energy to minimize the harmful impacts of exposure to RF on human health. Power management is one of the key energy-saving strategies used in wearable networks. Signals enter the receiver (Rx) from a transmitter (Tx) through the human body in the form of electromagnetic field (EMF) radiation produced during the transmission of the packet. It may have a negative effect on human health as a result of specific absorption rate (SAR). SAR is the amount of radio frequency energy consumed by human tissue in mass units. The higher the body's absorption rate, the more radio frequency radiation. Therefore, SAR can be reduced by distributing the power over a greater mass or tissue volume equivalently larger. The Institute of Electrical and Electronics Engineers (IEEE) 802.15.6-supported multi-hop topology is particularly useful for low-power embedded devices that can reduce consumption of energy by communicating to the receiver (Rx) through nearby transmitted devices. In this paper, we suggest a relaying mechanism to minimize the transmitted power and, as a consequence, the power density (PD), a measure of SAR.Index Terms-Wearable communications; Human RF exposure; SAR; PD; WBAN; multi-hop communications; 2.4 GHz • Second, using multi-hop communication in IEEE 802.15.6 standard the power density reduction by using a relaying method has been depicted.• Third, a new protocol has been proposed where the relay transmission power has been reduced to a certain extent so that the data rate ultimately becomes almost similar to that of direct connection without relay. II. RELATED WORKHuman EMF exposure in wireless communications garnered significant interest in recent literature. This section describes the state-of-the-art on characterization and reduction of EMF exposure in recent communications technologies. A. EMF Exposure in Recent Wireless TechnologiesNot only in wearable communications, other recent wireless technologies were also discussed on the human EMF exposure such as 5G [24]- [27]. The key finding from the prior works is that not only the uplink, but the downlink can also cause higher human EMF exposure compared to previous-generation. The

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“…Not only that, the present work identifies three technical features adopted in 5G, which potentially increase the concern of human electromagnetic field (EMF) exposure further: (i) higher carrier frequencies (e.g., 28, 60, and 70 GHz [2][14] [15]); (ii) larger number of transmitters due to introduction of small cells [2]; (iii) higher concentration of EMF energy due to adoption of beamforming [2].…”

Section: A Backgroundmentioning

confidence: 99%

Analysis of Human Exposure to Electromagnetic Fields in 5G Uplink and Downlink

Kim¹

2020

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Concern has been widely acknowledged about human health-e.g., heating of the eyes and skin-from exposure to electromagnetic fields (EMF) produced by wireless transmitters. Mobile telecommunications rely on an extensive network of base stations (BSs) and handheld devices that transmit signals via EMF. There is chance of aggravation due to two important changes that will be seen in future cellular networks. First, the number of BSs will remarkably grow with the proliferation of small-cell networks, which will expose humans to EMF more often. Second, highly concentrated EMF beams will be generated by employing larger antenna arrays to overcome faster EMF energy attenuation in higher-frequency bands such as millimeter wave (mmW) spectrum, which will increase damage if the main beam points to the human body. However, the two changes can be exploited as leverages for (i) wider selection of alternative BSs and (ii) more precise beamforming to a desired user equipment (UE) with less EMF leakage to other directions, respectively. Harnessing the two changes, we have been investigating the human health impacts of 5G wireless systems. This extended abstract summarizes our findings thus far.

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5G or Wi-Fi for HA/DR in the 60 GHz Band?

Cited by 8 publications

References 11 publications

Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band

Stochastic Analysis on Downlink Performance of Coexistence between WiGig and NR-U in 60 GHz Band

Mitigation of Human RF Exposure in Wearable Communications

Analysis of Human Exposure to Electromagnetic Fields in 5G Uplink and Downlink

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