SDR-Based Experiments for LTE-LAA Based Coexistence Systems with Improved Design

Ma, Yao; Jacobs, Ryan T.; Kuester, Daniel G.; Coder, Jason B.; Young, William F.

doi:10.1109/glocom.2017.8254615

Cited by 11 publications

(1 citation statement)

References 15 publications

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“…It relies on different channel access procedures based on sensing the channel before transmissions. In fact, this mechanism known as listen-before-talk (LBT) is studied and validated on a SDR platform addressing the coexistence between LTE-LAA systems and wireless local area networks (WLAN) [5]. Moreover, it is also considered for 5G services such as the ultra-reliable and low latency communication (URLLC) [6], thus the incorporation of more advanced features to the current SDR-based platforms is required for the adoption and standardization of unlicensed communication systems.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Sensing Using Software Defined Radio for Cognitive Radio Networks: A Survey

Manco

Dayoub

Nafkha³

et al. 2022

IEEE Access

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Cognitive radio (CR) network has emerged as a potential solution to the under-utilization problem of the allocated radio spectrum, where spectrum sensing (SS) plays a key role to enable the coexistence between primary and secondary users. It has attracted research interests, and several works have been reported in the literature. Nevertheless, the assumptions and simplifications introduced during the modeling of the communication system often yield misleading conclusions each time relevant aspects of their implementation on a testbed are omitted. Hence, prototypes are built to study their behaviour under real-world conditions, therefore software defined radio (SDR) has emerged as an ideal vehicle to allow researchers to experiment with prototypes of these CR approaches. In this survey, we provide an overview of the latest works in CR networks related to the spectrum awareness approaches and taking into account their implementation on testbeds. These approaches are classified from a practical point of view, where a detailed review of the existing works for each category is provided. A review of the existing SDR platforms is also exposed highlighting the main components and features of current architectures employed for experimental evaluation of CR approaches. Next, the challenges to implement current spectrum awareness approaches on SDR platforms are detailed. Finally, at the light of these reviews, research challenges and open issues are identified for future research directions. INDEX TERMSCognitive radio, spectrum sensing, SDR platforms, hardware impairments.

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Section: Introductionmentioning

confidence: 99%

Spectrum Sensing Using Software Defined Radio for Cognitive Radio Networks: A Survey

Manco

Dayoub

Nafkha³

et al. 2022

IEEE Access

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Wi-Fi/LTE-U Coexistence: Real-Time Issues and Solutions

et al. 2020

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Coexistence of small-cell LTE-U and Wi-Fi networks in unlicensed bands at 5 GHz is a topic of active interest, primarily driven by industry groups affiliated with the two (cellular and Wi-Fi) segments. Our focus in this work is on real-time deployment aspects of such coexisting networks, a topic which has seen little traction in the existing literature. The aim is to explore the following questions: (1) How do Wi-Fi clients associate with a Wi-Fi access point (AP) when a LTE-U base station is active with its maximum duty cycle, (2) How is the latency of Wi-Fi connection affected (in terms of association and data transmission) during coexistence with LTE-U, and (3) How does the energy sensing threshold of Wi-Fi affect the latency and throughput performance of Wi-Fi and LTE-U?

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Analysis of Generalized CCA Errors and Mitigation in LTE-LAA Spectrum Sharing System

Coder

2019

2019 IEEE Global Communications Conference (GLOBECOM)

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SDR-Based Experiments for LTE-LAA Based Coexistence Systems with Improved Design

Cited by 11 publications

References 15 publications

Spectrum Sensing Using Software Defined Radio for Cognitive Radio Networks: A Survey

Spectrum Sensing Using Software Defined Radio for Cognitive Radio Networks: A Survey

Wi-Fi/LTE-U Coexistence: Real-Time Issues and Solutions

Analysis of Generalized CCA Errors and Mitigation in LTE-LAA Spectrum Sharing System

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