Performance of Two-Hop Links With an Energy Buffer-Aided IoT Source and a Data Buffer-Aided Relay

Bapatla, Dileep; Prakriya, Shankar

doi:10.1109/jiot.2020.3036130

Cited by 11 publications

(9 citation statements)

References 37 publications

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“…Focusing on the resource allocation in the downlink of wireless relay networks, Hajipour et al [22] designed a stochastic network optimization scheme with the aid of buffers to maximize the system energy efficiency while maintaining the queue stability. In [23], an MC-based framework was developed to evaluate the throughput performance of twohop links with an energy buffer-aided IoT source and a data buffer-aided relay. The performance evaluation of buffer-aided cooperative nonorthogonal multiple access in IoT was recently investigated in [24] and [25], where the expressions of system throughput and average delay were derived theoretically based on the buffer state analysis.…”

Section: Related Workmentioning

confidence: 99%

Buffer Space Management in Intermittently Connected Internet of Things: Sharing or Allocation?

Liu

Shen

et al. 2022

IEEE Internet Things J.

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The efficient buffer space management in intermittently connected Internet of Things (IC-IoT) is of great importance for data delivery performance guarantee in such networks. This article considers two typical buffer space management policies for IC-IoT, i.e., buffer-space sharing (BS) and buffer-space allocation (BA). The BS policy allows the buffer space of each device to be fully shared by the exogenous packets and the packets from other devices, while the BA policy divides the buffer space into the source buffer and relay buffer for storing the two kinds of packets separately. With the help of the queueing theory and Markov chain theory, we develop a theoretical framework to capture the sophisticated queueing processes for the buffer space under either BS or BA policy, which enables the limiting distribution of the buffer occupation state to be determined. We then provide theoretical modeling for throughput and expected end-to-end delay to evaluate the fundamental performance of the IC-IoT under the BS and BA policies. Finally, extensive simulation and numerical results are presented to validate theoretical models and to demonstrate the effects of BS and BA policies on the IC-IoT performance.

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Section: Related Workmentioning

confidence: 99%

Buffer Space Management in Intermittently Connected Internet of Things: Sharing or Allocation?

Liu

Shen

et al. 2022

IEEE Internet Things J.

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“…According to DTMC theory, the parameter values of the time and state processes are all discrete Markov processes, and the transition of the state is only related to the state before and after the transition. Therefore, most of the literatures established the DTMC models for discrete buffer data queue lengths and used the DTMC model to analyze the performance of the system [20][21][22][23][24]. Bapatla and Prakriya [23] modeled the energy buffer using the discrete-time continuous-state DTMC model to analyze the outage and throughput performance of the system.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, most of the literatures established the DTMC models for discrete buffer data queue lengths and used the DTMC model to analyze the performance of the system [20][21][22][23][24]. Bapatla and Prakriya [23] modeled the energy buffer using the discrete-time continuous-state DTMC model to analyze the outage and throughput performance of the system. Based on the buffer state information, [24] used the Markov reward process to minimize the average queuing delay, thus overcoming the delay challenge posed in two-hop buffer-aided relay networks.…”

Section: Introductionmentioning

confidence: 99%

Performance Modeling and Analysis of BASUR-CARQ Protocol Based on Interrelay Interference Cancellation

Zhou

Qian

Song

2023

Wireless Communications and Mobile Computing

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To recover the performance loss of nodes in half-duplex mode, this paper proposes a buffer-aided successive relay protocol based on cooperative automatic repeat request mechanism (BASUR-CARQ). Based on the fact that interrelay interference (IRI) will occur when relay nodes transmit or receive simultaneously, an interference cancellation operator is proposed to determine whether the interference is eliminated to reduce the outage probability. Moreover, a delay model for data frame transmission is proposed based on CARQ mechanism, and a closed-form expression for the average delay is derived. A 6-state discrete-time Markov chain (DTMC) model is developed to obtain the system throughput, and a closed-form expression for the system energy efficiency under M-ary modulation is derived. Finally, the simulation results show that with the setting of parameters that can balance the main performance, the delay performance of BASUR-CARQ protocol is significantly enhanced compared to the traditional protocols, and the throughput of BASUR-CARQ protocol is also optimized at high signal-to-noise ratio (SNR). Meanwhile, the energy efficiency of BASUR-CARQ protocol is significantly improved for the successive relay communication system without interference cancellation technique.

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“…Different from [14], both a self-sustaining source and a self-sustaining relay are introduced into the two-hop relay networks with a direct link in [16], where both the source and the relay harvest energy from the ambience. In [17], the performance of two-hop relay network with a self-sustaining source harvesting energy from the ambience and a data bufferaided relay is analysed, where three simple link selection schemes considering buffer status or channel knowledge are adopted to maximize the throughput of the relay network.…”

Section: Introductionmentioning

confidence: 99%

Opportunistic Routing Aided Cooperative Communication Network with Energy-Harvesting

An¹,

Chen²,

Xu³

et al. 2022

Preprint

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In this paper, a cooperative communication network based on two energy-harvesting (EH) decode-and-forward (DF) relays which harvest energy from the ambience using buffers with harvest-store-use (HSU) architecture is considered. For improving the data delivery in this network, an opportunistic routing (OR) algorithm considering channel status information (CSI), location and energy buffer status of relays is proposed. For the sake of deriving the theoretical expressions for limiting distribution of energy stored in buffers with discrete-time continuousstate space Markov chain (DCSMC) model, the probabilities that the packet to be forwarded exists in one and more transmitting nodes are obtained based on the state transition matrix (STM). Moreover, the closed-form expressions for outage probability and throughput of the network based on the CSI and the limiting distributions of energy stored in buffers are presented. Numerous experiments have been performed to verify the derived theoretical expressions.

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Performance of Two-Hop Links With an Energy Buffer-Aided IoT Source and a Data Buffer-Aided Relay

Cited by 11 publications

References 37 publications

Buffer Space Management in Intermittently Connected Internet of Things: Sharing or Allocation?

Buffer Space Management in Intermittently Connected Internet of Things: Sharing or Allocation?

Performance Modeling and Analysis of BASUR-CARQ Protocol Based on Interrelay Interference Cancellation

Opportunistic Routing Aided Cooperative Communication Network with Energy-Harvesting

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