Coexistence of Wi-Fi and LAA-LTE: Experimental evaluation, analysis and insights

Jian, Yubing; Shih, Chao-Fang; Krishnaswamy, Bhuvana; Sivakumar, R.

doi:10.1109/iccw.2015.7247528

Cited by 78 publications

(44 citation statements)

References 4 publications

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“…Their investigation revealed that coexistence fairness is impacted by multiple factors -the contention parameters for channel access, as well as the sensing threshold and transmission duration. [11] also explored the relative issue of differing channelizations (i.e. channel bandwidth asymmetry) between LTE and Wi-Fi.…”

Section: Related Workmentioning

confidence: 99%

Analytical Modeling of Wi-Fi and LTE-LAA Coexistence: Throughput and Impact of Energy Detection Threshold

Mehrnoush

Sathya

Roy

et al. 2018

IEEE/ACM Trans. Networking

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With both small-cell LTE and Wi-Fi networks available as alternatives for deployment in unlicensed bands (notably 5 GHz), the investigation into their coexistence is a topic of active interest, primarily driven by industry groups. 3GPP has recently standardized LTE Licensed Assisted Access (LTE-LAA) that seeks to make LTE more co-existence friendly with Wi-Fi by incorporating similar sensing and back-off features. Nonetheless, the results presented by industry groups offer little consensus on important issues like respective network parameter settings that promote "fair access" as required by 3GPP. Answers to such key system deployment aspects, in turn, require credible analytical models, on which there has been little progress to date. Accordingly, in one of the first work of its kind, we develop a new framework for estimating the throughput of Wi-Fi and LTE-LAA in coexistence scenarios via suitable modifications to the celebrated Bianchi [1] model. The impact of various network parameters such as energy detection (ED) threshold on Wi-Fi and LTE-LAA coexistence is explored as a byproduct and corroborated via a National Instrument (NI) experimental testbed that validates the results for LTE-LAA access priority class 1 and 3.Index Terms-Wi-Fi, LTE-LAA, 5GHz Unlicensed band Coexistence.

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Section: Related Workmentioning

confidence: 99%

Analytical Modeling of Wi-Fi and LTE-LAA Coexistence: Throughput and Impact of Energy Detection Threshold

Mehrnoush

Sathya

Roy

et al. 2018

IEEE/ACM Trans. Networking

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“…Wi-Fi/LTE [119]- [141] Impact of coexistence with unmodified LTE on Wi-Fi −no baseline [119], [126], [134]; −vs. standalone [120]- [125], [127]- [131], [135];…”

Section: -30 Stations Of Each Technologymentioning

confidence: 99%

Survey of Spectrum Sharing for Inter-Technology Coexistence

Voicu

Simić

Petrova

2019

IEEE Commun. Surv. Tutorials

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Increasing capacity demands in emerging wireless technologies are expected to be met by network densification and spectrum bands open to multiple technologies. These will, in turn, increase the level of interference and also result in more complex inter-technology interactions, which will need to be managed through spectrum sharing mechanisms. Consequently, novel spectrum sharing mechanisms should be designed to allow spectrum access for multiple technologies, while efficiently utilizing the spectrum resources overall. Importantly, it is not trivial to design such efficient mechanisms, not only due to technical aspects, but also due to regulatory and business model constraints. In this survey we address spectrum sharing mechanisms for wireless inter-technology coexistence by means of a technology circle that incorporates in a unified, system-level view the technical and nontechnical aspects. We thus systematically explore the spectrum sharing design space consisting of parameters at different layers. Using this framework, we present a literature review on intertechnology coexistence with a focus on wireless technologies with equal spectrum access rights, i.e. (i) primary/primary, (ii) secondary/secondary, and (iii) technologies operating in a spectrum commons. Moreover, we reflect on our literature review to identify possible spectrum sharing design solutions and performance evaluation approaches useful for future coexistence cases. Finally, we discuss spectrum sharing design challenges and suggest future research directions.

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“…Also, other prior work studied coexistence of Wi-Fi and cellular in lower-frequency bands. The coexistence of LAA-LTE and Wi-Fi in indoor environments was studied [7]. This experimental study performed implementation of LAA-LTE and Wi-Fi.…”

Section: Related Workmentioning

confidence: 99%

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

Kabir

Kim

2019

2019 IEEE International Symposium on Technologies for Homeland Security (HST)

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This paper studies the feasibility of Wi-Fi and 5G technologies in the unlicensed 60 GHz band for humanitarian assistance and disaster relief (HA/DR) operations. Building a wireless communications system in the 60 GHz band can benefit HA/DR activities for two reasons: (i) no license is needed; (ii) a wide bandwidth is available. Our simulation results show that both of Wi-Fi and 5G can achieve data rates exceeding the requirements for most of the HA/DR missions, which proves the feasibility of the two wireless technologies for operation of highdata-rate HA/DR activities such as real-time video streaming.

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Coexistence of Wi-Fi and LAA-LTE: Experimental evaluation, analysis and insights

Cited by 78 publications

References 4 publications

Analytical Modeling of Wi-Fi and LTE-LAA Coexistence: Throughput and Impact of Energy Detection Threshold

Analytical Modeling of Wi-Fi and LTE-LAA Coexistence: Throughput and Impact of Energy Detection Threshold

Survey of Spectrum Sharing for Inter-Technology Coexistence

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

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