Decoding Performance in Low-Power Wide Area Networks With Packet Collisions

Lieske, Hendrik; Kilian, Gerd; Breiling, Marco; Rauh, Sebastian; Robert, Jörg; Heuberger, Albert

doi:10.1109/twc.2016.2613079

Cited by 16 publications

(12 citation statements)

References 16 publications

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“…LPWA technologies deploy modulation (such as UNB) and spread-spectrum techniques (such as CSS and DSSS) that are resilient to interference. The analysis by [96] showed a low error probability for coded time-hopping spread spectrum systems, even under strong interference. LoRa modulation exhibits good resistance to interference [11].…”

Section: Challenges and Future Research Directionsmentioning

confidence: 97%

Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

et al. 2018

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Low power wide area (LPWA) technologies are strongly recommended as the underlying networks for Internet of things (IoT) applications. They offer attractive features, including wide-range coverage, long battery life and low data rates. This paper reviews the current trends in this technology, with an emphasis on the services it provides and the challenges it faces. The industrial paradigms for LPWA implementation are presented. Compared with other work in the field, this survey focuses on the need for integration among different LPWA technologies and recommends the appropriate LPWA solutions for a wide range of IoT application and service use-cases. Opportunities created by these technologies in the market are also analyzed. The latest research efforts to investigate and improve the operation of LPWA networks are also compared and classified to enable researchers to quickly get up to speed on the current status of this technology. Finally, challenges facing LPWA are identified and directions for future research are recommended.

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Section: Challenges and Future Research Directionsmentioning

confidence: 97%

Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

et al. 2018

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“…Alternatively, random medium access (RMA) can be used, which usually has a much shorter duty cycle. For RMA, the transmissions from individual nodes are not jointly scheduled in time, but occur with a typically known probability, which can be exploited in order to improve the reliability of signal detection [5], [6]. Hence, a distinct advantage of the RMA is high flexibility of the system.…”

Section: A Motivationmentioning

confidence: 99%

“…In presence of external interference from other communication systems, the total disturbance variance, which consists of both noise and interference variance, should be employed instead of σ 2 . 5 In the following, we consider the process of packet arrival and its implications for energy harvesting and symbol detection.…”

Section: System Modelmentioning

confidence: 99%

“…Hence, the goal is to find a good sequence ρ[m], ∀m. In this paper, we focus on the average harvested power P harv (ρ[m]) as a performance metric, which is obtained by taking into account the time-varying PSF in (5). Here, P harv (ρ[m]) indicates that the choice of the sequence ρ[m] heavily affects the average harvested power.…”

Section: A Prediction Problemmentioning

confidence: 99%

“…However, the methods proposed in this paper are applicable to other kinds of modulation including amplitude-shift keying (ASK), higher-order phaseshift keying (PSK) and quadrature amplitude modulation (QAM) as well 4. Since we consider a discontinuous transmission, we define the data of each packet in the range 0 < m ≤ Ln and set c n,k [m] = 0 otherwise 5. This suggestion is valid in case of continuous signal transmission with a constant variance of disturbance.…”

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confidence: 99%

See 2 more Smart Citations

Random Access based Reliable Uplink Communication and Power Transfer using Dynamic Power Splitting

Kisseleff¹,

Chatzinotas²,

Ottersten³

2020

Preprint

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Large communication networks, e.g. Internet of Things (IoT), are known to be vulnerable to co-channel interference. One possibility to address this issue is the use of orthogonal multiple access (OMA) techniques. However, due to a potentially very long duty cycle, OMA is not well suited for such schemes. Instead, random medium access (RMA) appears more promising. An RMA scheme is based on transmission of short data packets with random scheduling, which is typically unknown to the receiver. The received signal, which consists of the overlapping packets, can be used for energy harvesting and powering of a relay device. Such an energy harvesting relay may utilize the energy for further information processing and uplink transmission. In this paper, we address the design of a simultaneous information and power transfer scheme based on randomly scheduled packet transmissions and reliable symbol detection. We formulate a prediction problem with the goal to maximize the harvested power for an RMA scenario. In order to solve this problem, we propose a new prediction method, which shows a significant performance improvement compared to the straightforward baseline scheme. Furthermore, we investigate the complexity of the proposed method and its vulnerability to imperfect channel state information.

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Practical Residual Interference After Cancellation for Constant Envelope Modulation With Data-Aided Synchronization

Lin

Weitnauer

2018

IEEE Access

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Decoding Performance in Low-Power Wide Area Networks With Packet Collisions

Cited by 16 publications

References 16 publications

Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

Random Access based Reliable Uplink Communication and Power Transfer using Dynamic Power Splitting

Practical Residual Interference After Cancellation for Constant Envelope Modulation With Data-Aided Synchronization

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