LTE eNB traffic analysis and key techniques towards 5G mobile networks

Iliev, Teodor; Mihaylov, Grigor; Bikov, T. D.; Ivanova, Elena P.; Stoyanov, Ivaylo; Radev, Dimitar

doi:10.23919/mipro.2017.7973476

Cited by 16 publications

(4 citation statements)

References 3 publications

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“…These results show that the average delay is higher in HTTP, either in the communication between OBU to RSU or between RSU to OBU. However, both cases remain in the expected range of average delay for vehicular applications [24]. With these results, it is possible to conclude that using CoAP in communication delivers better results than HTTP, with delays tending to be smaller and without being outside the expected range of average delay, satisfying this requirement.…”

Section: Execution and Resultsmentioning

confidence: 63%

See 1 more Smart Citation

Internet of Vehicles Interoperability using CoAP Protocol for Streaming Applications

Borges,

Valadares,

Santos

2023

Anais Do XLI Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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The Internet of Vehicles is widely applied in the context of connected systems nowadays. A vehicular network, a structure that provides vehicle-to-everything communication, can solve many issues in IoV. However, it deals with connectivity restrictions such as volatility, latency, bandwidth, and interoperability. To deal with these issues, applications can use lightweight IoT protocols such as the Constrained Application Protocol (CoAP). This paper presents a practical use case implemented using the CoAP protocol, considering a Multi-access Edge Computing (MEC) scenario, which runs cloud services at the network's edge and performs specific interoperable tasks. The evaluated scenario considers a V2X Streaming Service application that uses the V2X Information Service, an API to facilitate the interoperability between V2X communications and external applications. The study concludes that CoAP can fulfill the scenario's connectivity requirements and facilitate interoperability between IoT services.

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Section: Execution and Resultsmentioning

confidence: 63%

“…The API, in turn, requests information from the streaming service via a subscribe message and receives a return via a response message. It is important to note that the V2X Streaming Service can be on a 5G network, which favors MEC services such as the VIS API [21].…”

Section: Multi-access Edge Computing (Mec)mentioning

confidence: 99%

Internet of Vehicles Interoperability using CoAP Protocol for Streaming Applications

Borges,

Valadares,

Santos

2023

Anais Do XLI Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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“…In fact, the radio signal coverage of the GSM network, and the level of the LTE signal in particular, is not reliable, nor is it constantly stable enough in the areas of small villages where few people live, although the majority of those people also need a mobile service with the same excellent parameters as is delivered in the territories of the big cities [1,2]. Obviously, it is not profitable for the providers to develop the infrastructure in low-population areas, and this is a very unpleasant problem for the minority population who prefer to live in small towns and villages or much closer to wild nature [3].…”

Section: Introductionmentioning

confidence: 99%

Local Area Improvement of GSM Network Coverage

Tomov,

Kogias,

Malamatoudis

et al. 2024

The 4th International Conference on Communications, Information, Electronic and Energy Systems

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“…T HE fifth generation of cellular network (5G) is put forward to meet the ever-increasing demand of wireless communication. Enabling techniques of 5G include massive multiple-input multiple-output (MIMO), advanced coding, new multiple access (MA), full spectrum access, new network architectures, etc [1]. In the past decades, MAs such as time division multiple access (TDMA) [2], frequency division multiple access (FDMA) [3], and code division multiple access (CDMA) [4], became part of wireless standards.…”

Section: Introductionmentioning

confidence: 99%

Efficient Sparse Code Multiple Access Decoder Based on Deterministic Message Passing Algorithm

Zhang

Yang

Pang

et al. 2020

IEEE Trans. Veh. Technol.

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Being an effective non-orthogonal multiple access (NOMA) technique, sparse code multiple access (SCMA) is promising for future wireless communication. Compared with orthogonal techniques, SCMA enjoys higher overloading tolerance and lower complexity because of its sparsity. In this paper, based on deterministic message passing algorithm (DMPA), algorithmic simplifications such as domain changing and probability approximation are applied for SCMA decoding. Early termination, adaptive decoding, and initial noise reduction are also employed for faster convergence and better performance. Numerical results show that the proposed optimizations benefit both decoding complexity and speed. Furthermore, efficient hardware architectures based on folding and retiming are proposed. VLSI implementation is also given in this paper. Comparison with the state-of-the-art have shown the proposed decoder's advantages in both latency and throughput (multi-Gbps).Index Terms-Sparse code multiple access (SCMA), deterministic message passing algorithm (DMPA), folding, retiming, VLSI.• Error propagation: For SIC, if an error occurs, all users afterward are likely to be decoded incorrectly.• Decoding latency: User power sorting is involved in SIC, and causes good overhead latency compared to other methods. Since the data with the lowest power is decoded last, the latency will even higher. Therefore, SCMA employs MUD instead of SIC. Thanks to its sparsity, message passing algorithm (MPA) can be applied for better decoding performance. B. Sparse Code Multiple AccessSCMA was proposed in 2013 [15], trying to increase user scale via a new perspective: enabling more efficient multiple access by non-orthogonal sparse spreading codes of users.1) Properties of SCMA: As a promising MA, SCMA has the properties: i) multiplexing in frequency domain; ii) codebook based on both mapping and spreading; iii) multidimensional constellation for shaping gain and spectral efficiency; iv) non-orthogonality ensuring more accessed users; v) spreading which reduces noise interference and enhances system robustness; and vi) sparsity which reduces decoding complexity. Thanks to these properties, SCMA is more physically realizable and overloading tolerant, compared to other MAs [16]. Details of SCMA can be found in Section II.2) Challenges of SCMA:• Throughput: Though the throughput of SCMA outperforms other MAs, especially orthogonal ones, it is hard to

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LTE eNB traffic analysis and key techniques towards 5G mobile networks

Cited by 16 publications

References 3 publications

Internet of Vehicles Interoperability using CoAP Protocol for Streaming Applications

Internet of Vehicles Interoperability using CoAP Protocol for Streaming Applications

Local Area Improvement of GSM Network Coverage

Efficient Sparse Code Multiple Access Decoder Based on Deterministic Message Passing Algorithm

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