Design and Performance Analysis of a Novel Distributed Queue Access Protocol for Cellular-Based Massive M2M Communications

Bui, Anh-Tuan H.; Nguyen, Chuyen T.; Thang, Truong Cong; Pham, Anh T.

doi:10.1109/access.2017.2786678

Cited by 22 publications

(9 citation statements)

References 17 publications

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“…Each mcMTD and SBS then randomly chooses an Msg1 queue to associate with upon entering the system. This multi-queue concept has been mentioned in our previous works [30].…”

Section: Interworking Between Dq and Modified Rapmentioning

confidence: 98%

Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis

et al. 2021

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Long-Term Evolution cellular networks are the main enabler for the massive Machine-Type Communications service and therefore must handle a large number of Machine-Type Devices (MTDs). To control the number of devices allowed to contend on the Physical Random Access Channel (PRACH), the group paging scheme that divides the MTDs into smaller groups and lets the network sequentially trigger the groups has been studied. However, as the number of PRACH preambles is limited, a group's size must be kept relatively small compared to the MTD population. This paper exploits the possibility that a significant portion of the MTDs is also covered by densely deployed small-cells such that a Small-cell Base Station (SBS) may act as a representative for its MTDs during the preamble transmission step to reduce the load on PRACH. Once the SBS succeeds, its MTDs then contend locally to send their own signaling messages on the corresponding reserved uplink resources. Computer simulations show that the manageable group size can be significantly increased at a reasonable cost on the Physical Uplink Shared Channel. A theoretical model to quickly predict the effect of the ratio of MTDs that are under the coverage of the SBSs is also derived and verified.

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“…Each mcMTD and SBS then randomly chooses an Msg1 queue to associate with upon entering the system. This multi-queue concept has been mentioned in our previous works [30].…”

Section: Interworking Between Dq and Modified Rapmentioning

confidence: 98%

Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis

et al. 2021

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“…As an alternative to S-ALOHA system, distributed queueing random access (DQRA) scheme [14], [15] has been applied to LTE in [16], [17]. In Xu's original DQRA scheme [14], a slot is divided into mini-slots and one data transmission part.…”

Section: B Related Workmentioning

confidence: 99%

Exploiting in-Slot Micro-Synchronism for S-ALOHA

Seo

Jin

2022

IEEE Trans. Wireless Commun.

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Proliferation of the urban Internet-of-Things (IoTs) for smart cities has fuelled massive amounts of data over wireless cellular networks. Random access (RA) system of wireless cellular networks, e.g., 5G New Radio (NR), based on S-ALOHA system should cope with ever-growing IoT traffic. This work proposes S-ALOHA system with time offsets (TOs), where one slot consists of K TOs and one packet transmission time. The length of the overall TOs is a fraction of a packet transmission time. In the system users (re)transmit to the boundary of a TO randomly selected. This enables the base station (BS) to inform the users of who transmits the first and the last packets in the slot with collision so that the two users can retransmit successfully in the following two slots respectively. Our throughput analysis compared to simulations shows that adopting even with three and four TOs surpasses the throughput limit of S-ALOHA system without TOs. Additionally, we propose two Bayesian-optimized backoff algorithms for S-ALOHA system with TOs, with which users can apply throughput-optimal (re)transmission probability or uniform backoff window even in unsaturated traffic scenarios. Numerical results demonstrate that the proposed backoff algorithms can achieve the throughput close to an ideal system and drastically reduce the access delay compared to S-ALOHA system.

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“…In their study, Bui et al 14 propose an adaptive division method aided by a physical layer (PHY‐layer) estimation strategy to resolve up to ten thousand simultaneous M2M devices with acceptable access delay. Bui et al 1 propose a new scheme that uses the distributed queuing (DQ).…”

Section: Related Workmentioning

confidence: 99%

Traffic load access barring scheme for random‐access channel in massive machine‐to‐machine and human‐to‐human devices coexistence in LTE‐A

Shukry

Fahmy

2021

Int J Communication

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Summary A major challenge for the development of the upcoming generations of wireless systems is to match the massive expansion of the Internet of things (IoT) applications along with the traditional human communication. Recently, 3rd Generation Partnership Project (3GPP) has suggested the use of LTE‐A to support machine‐to‐machine (M2M) communications to realize the IoT applications. One of the key concerns is the random‐access procedure in LTE‐A, the existence of a massive number of M2M devices results in system overload and congestion in the random‐access channel (RACH). In this paper, we present a new extension to the active barring‐based random‐access scheme. The proposed traffic load access barring (TLAB) RACH access scheme considers the dynamic changes in system traffic when setting the barring information. At the same time, the proposed scheme avoids unnecessary barring of some M2M devices. Our scheme improves the access delay that results from the barring of M2M devices by applying a new rule in the selection of classes to bar and classes to unbar. The simulation results show the superiority of our scheme in terms of success probability, average access delay, and average power consumption.

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Design and Performance Analysis of a Novel Distributed Queue Access Protocol for Cellular-Based Massive M2M Communications

Cited by 22 publications

References 17 publications

Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis

Small-Cell Assisted Group Paging for Massive MTC in LTE Networks: Design and Analysis

Exploiting in-Slot Micro-Synchronism for S-ALOHA

Traffic load access barring scheme for random‐access channel in massive machine‐to‐machine and human‐to‐human devices coexistence in LTE‐A

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