ALOHA-NOMA for Massive Machine-to-Machine IoT Communication

Balevi, Eren; Rabee, Faeik T. Al; Gitlin, Richard D.

doi:10.1109/icc.2018.8422892

Cited by 68 publications

(43 citation statements)

References 12 publications

(18 reference statements)

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“…Partindo para a comunicação a múltiplos saltos, o trabalho proposto em [11] estuda o desempenho da taxa de erro de bit (BER, do inglês Bit Error Rate) em uma rede aleatória Aloha. Em trabalhos mais recentes, como os apresentados em [7], [9] e [15], este protocolo também foi utilizado pois ainda possui aplicações práticas válidas por sua menor complexidade, se comparado a outros protocolos MAC mais novos.…”

Section: Trabalhos Relacionadosunclassified

“…todo, é importante considerar o protocolo de acesso ao meio (MAC, do inglês Medium Access Control) integrado com o consumo da camada física, assim como também o esquema de roteamento. Aqui, no caso do protocolo MAC, foi considerado o slotted Aloha [8] que, embora apresente baixa vazão, é amplamente utilizado devido a sua baixa complexidade que combinado com outras técnicas de comunicação como NOMA (do inglês Non-Ortoghonal Multiple Access) e SIC (do inglês Successive Interference Cancelation) pode melhorar substancialmente o desempenho de sistemas de comunicação sem fio [7], [9].…”

Section: Introductionunclassified

See 1 more Smart Citation

Consumo Ótimo de Energia em Redes Ad Hoc Aleatórias Aloha com Múltiplos Saltos

Silva¹,

Moraes²

2019

Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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Resumo-Este trabalho apresenta um estudo do consumo de energia em redes ad hoc slotted Aloha, em um cenário em que os nós estão distribuídos de maneira uniformemente aleatória na rede. A fim de obter redução no consumo de energia na comunicação entre os nós, um modelo é apresentado para obtenção da potência ótima de transmissão como função da taxa de transmissão de dados (R) e do tamanho do pacote (N b), considerando a realização de múltiplos saltos desde o nó fonte até o nó destino. Os resultados indicam que é possível se obter consumo ótimo mínimo de energia em função de R e N b , além de outros parâmetros de camada física e de enlace e também considerando o roteamento. Palavras-Chave-Comunicação por múltiplos saltos, consumo de energia, protocolo Aloha, redes ad hoc. Abstract-This paper presents a study of energy consumption in slotted Aloha ad hoc networks, in a scenario where the nodes are uniformly random distributed on the network. In order to obtain energy consumption reduction for communication among the nodes, a model is introduced to obtain the optimum transmission power as a function of the data transmission rate (R) and packet size (N b), considering multihop communication from source to destination. The results indicates that it is possible to obtain optimum energy consumption as a funtion of R and N b , as well as other physical and link layers parameters, also considering the routing scheme.

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Section: Trabalhos Relacionadosunclassified

Section: Introductionunclassified

Consumo Ótimo de Energia em Redes Ad Hoc Aleatórias Aloha com Múltiplos Saltos

Silva¹,

Moraes²

2019

Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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“…In this work, to obtain the proper power level set, the number of active devices is estimated by the gateway and then based on that the set is determined. In a similar approach, in [20], the estimated number of active devices is broadcasted to the devices, where using this information, each device adjusts its transmission power properly. In [22], the cell area is divided into different layers, where devices in different layers have different target received power.…”

Section: Related Workmentioning

confidence: 99%

A NOMA-Enhanced Reconfigurable Access Scheme With Device Pairing for M2M Networks

2019

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This paper aims to address the distinct requirements of machine-to-machine networks, particularly heterogeneity and massive transmissions. To this end, a reconfigurable medium access control with the ability to choose a proper access scheme with the optimal configuration for devices based on the network status is proposed. In this scheme, in each frame, a separate time duration is allocated for each of the non-orthogonal multiple access (NOMA)-based, orthogonal multiple access (OMA)-based, and random access-based segments, where the length of each segment can be optimized. To solve this optimization problem, an iterative algorithm consisting of two sub-problems is proposed. The first sub-problem deals with selecting devices for the NOMA-/OMA-based transmissions, while the second one optimizes the parameter of the random access scheme. To show the efficacy of the proposed scheme, the results are compared with the reconfigurable scheme which does not support NOMA. The results demonstrate that by using a proper device pairing scheme for the NOMA-based transmissions, the proposed reconfigurable scheme achieves better performance when NOMA is adopted.

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“…There are also spreading-based NOMA schemes which utilizes the user-specific low crosscorrelation real/complex-valued spreading sequences to enable non-orthogonal transmissions [10]. To support massive connectivity, many existing papers aim to incorporate code-domain NOMA [12]- [14], or power-domain NOMA [15]- [21] into contention-based random access schemes such as pure ALOHA and slotted ALOHA. In this article, we adopt power-domain NOMA 1 as an enabling technology to enhance the conventional slotted-ALOHA-based RA procedure in NB-IoT and LTE-M, by allowing multiple IoT devices to transmit messages using the same uplink resource [22].…”

Section: Introductionmentioning

confidence: 99%

“…Compared to the conventional RA schemes such as pure ALOHA and slotted ALOHA, this newly proposed NOMA-RA scheme is more spectrum-efficient. Focusing on the novel NOMA-RA scheme, some research papers have been published which evaluate the throughput performance, such as [15]- [21]. The combination of pure ALOHA and power-domain NOMA was considered in [15], which showed that the introduction of NOMA results in a higher throughput, compared to the conventional pure ALOHA.…”

Section: Introductionmentioning

confidence: 99%

Throughput Analysis and User Barring Design for Uplink NOMA-Enabled Random Access

Foh

Quddus

et al. 2021

IEEE Trans. Wireless Commun.

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Being able to accommodate multiple simultaneous transmissions on a single channel, non-orthogonal multiple access (NOMA) appears as an attractive solution to support massive machine type communication (mMTC) that faces a massive number of devices competing to access the limited number of shared radio resources. In this paper, we first analytically study the throughput performance of NOMA-based random access (RA), namely NOMA-RA. We show that while increasing the number of power levels in NOMA-RA leads to a further gain in maximum throughput, the growth of throughput gain is slower than linear. This is due to the higher-power dominance characteristic in power-domain NOMA known in the literature. We explicitly quantify the throughput gain for the very first time in this paper. With our analytical model, we verify the performance advantage of NOMA-RA scheme by comparing with the baseline multi-channel slotted ALOHA (MS-ALOHA), with and without capture effect. Despite the higher-power dominance effect, the maximum throughput of NOMA-RA with four power levels achieves over three times that of the MS-ALOHA. However, our analytical results also reveal the sensitivity of load on the throughput of NOMA-RA. To cope with the potential bursty traffic in mMTC scenarios, we propose adaptive load regulation through a practical user barring algorithm. By estimating the current load based on the observable channel feedback, the algorithm adaptively controls user access to maintain the optimal loading of channels to achieve maximum throughput. When the proposed user barring algorithm is applied, simulations demonstrate that the instantaneous throughput of NOMA-RA always remains close to the maximum throughput confirming the effectiveness of our load regulation.Index Terms-Massive machine type communication (mMTC), NOMA, random access, user barring.

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ALOHA-NOMA for Massive Machine-to-Machine IoT Communication

Cited by 68 publications

References 12 publications

Consumo Ótimo de Energia em Redes Ad Hoc Aleatórias Aloha com Múltiplos Saltos

Consumo Ótimo de Energia em Redes Ad Hoc Aleatórias Aloha com Múltiplos Saltos

A NOMA-Enhanced Reconfigurable Access Scheme With Device Pairing for M2M Networks

Throughput Analysis and User Barring Design for Uplink NOMA-Enabled Random Access

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