A Survey on Multipath Routing Protocols for QoS Assurances in Real-Time Wireless Multimedia Sensor Networks

Hasan, Mohammed Zaki; Al‐Rizzo, Hussain M.; Al‐Turjman, Fadi

doi:10.1109/comst.2017.2661201

Cited by 193 publications

(83 citation statements)

References 129 publications

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“…They presented a layer-based overview of such protocols highlighting their key benefits, challenges, and drawbacks and discussing related open research issues. In [28], the authors presented a new taxonomy for Multipath Routing Protocols in Real-Time Wireless Multimedia Sensor Networks (WMSNs) highlighting their advantages and disadvantages. They pointed out that multi-constraint multi-path routing in WMSNs is still an open issue that needs to be addressed by future research efforts.…”

Section: B Overview Of Related Survey Articlesmentioning

confidence: 99%

A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-Power and Lossy Networks: A Focus on Core Operations

Ghaleb

Al‐Dubai

Ekonomou

et al. 2019

IEEE Commun. Surv. Tutorials

106

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Driven by the special requirements of the Lowpower and Lossy Networks (LLNs), the IPv6 Routing Protocol for LLNs (RPL) was standardized by the IETF some six years ago to tackle the routing issue in such networks. Since its introduction, however, numerous studies have pointed out that, in its current form, RPL suffers from issues that limit its efficiency and domain of applicability. Thus, several solutions have been proposed in the literature in an attempt to overcome these identified limitations. In this survey, we aim mainly to provide a comprehensive review of these research proposals assessing whether such proposals have succeeded in overcoming the standard reported limitations related to its core operations. Although some of RPL's weaknesses have been addressed successfully, the study found that the proposed solutions remain deficient in overcoming several others. Hence, the study investigates where such proposals still fall short, the challenges and pitfalls to avoid, thus would help researchers formulate a clear foundation for the development of further successful extensions in future allowing the protocol to be applied more widely.

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Section: B Overview Of Related Survey Articlesmentioning

confidence: 99%

A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-Power and Lossy Networks: A Focus on Core Operations

Ghaleb

Al‐Dubai

Ekonomou

et al. 2019

IEEE Commun. Surv. Tutorials

106

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“…For instance, detecting active devices shall enhance data transmission efficiency in dynamic IoT networks [43] and wireless sensor networks. The proposed computation-estimation trade-off techniques are particularly suitable for real-time wireless IoT networks, e.g., vehicular networks [44], as well as providing fault-tolerance communication and supporting high QoS and QoE requirements [45] with low estimation errors. While the lower computational complexity comes at the cost of relatively high estimation errors, it shall reduce energy consumption significantly, and thus is suitable for energy sensitive applications [46].…”

Section: B Applications In Iot Systemsmentioning

confidence: 99%

Joint Activity Detection and Channel Estimation for IoT Networks: Phase Transition and Computation-Estimation Tradeoff

Jiang

Shi

Zhang

et al. 2019

IEEE Internet Things J.

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Massive device connectivity is a crucial communication challenge for Internet of Things (IoT) networks, which consist of a large number of devices with sporadic traffic. In each coherence block, the serving base station needs to identify the active devices and estimate their channel state information for effective communication. By exploiting the sparsity pattern of data transmission, we develop a structured group sparsity estimation method to simultaneously detect the active devices and estimate the corresponding channels. This method significantly reduces the signature sequence length while supporting massive IoT access. To determine the optimal signature sequence length, we study the phase transition behavior of the group sparsity estimation problem. Specifically, user activity can be successfully estimated with a high probability when the signature sequence length exceeds a threshold; otherwise, it fails with a high probability. The location and width of the phase transition region are characterized via the theory of conic integral geometry. We further develop a smoothing method to solve the highdimensional structured estimation problem with a given limited time budget. This is achieved by sharply characterizing the convergence rate in terms of the smoothing parameter, signature sequence length and estimation accuracy, yielding a tradeoff between the estimation accuracy and computational cost. Numerical results are provided to illustrate the accuracy of our theoretical results and the benefits of smoothing techniques.

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“…where j = i and j ∈ [1,2]. Note that the path loss law for the pico tier L 2 (r) has a step character.…”

Section: ) Maximum Received Power Schemementioning

confidence: 99%

Cache-Enabled HetNets With Millimeter Wave Small Cells

Liu

Nallanathan

2018

IEEE Trans. Commun.

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In this paper, we consider a novel cache-enabled heterogeneous network (HetNet), where macro base stations (BSs) with traditional sub-6 GHz are overlaid by dense millimeter wave (mmWave) pico BSs. These two-tier BSs, which are modeled as two independent homogeneous Poisson Point Processes, cache multimedia contents following the popularity rank. High-capacity backhauls are utilized between macro BSs and the core server. In contrast to the simplified flat-top antenna pattern analyzed in previous articles, we employ an actual antenna model with the uniform linear array at all mmWave BSs. To evaluate the performance of our system, we introduce two distinctive user association strategies: 1) maximum received power (Max-RP) scheme; and 2) maximum rate (Max-Rate) scheme. With the aid of these two schemes, we deduce new theoretical equations for success probabilities and area spectral efficiencies (ASEs). Considering a special case with practical path loss laws, several closed-form expressions for coverage probabilities are derived to gain several insights. Monte Carlo simulations are presented to verify the analytical conclusions. We show that: 1) the proposed HetNet is an interference-limited system and it outperforms the traditional HetNets in terms of the success probability; 2) there exists an optimal pre-decided rate threshold that contributes to the maximum ASE; and 3) Max-Rate achieves higher success probability and ASE than Max-RP but it needs the extra information of the interference effect.Index Terms-Caching, heterogeneous networks, millimeter wave, stochastic geometry, user association • The success probability and area spectral efficiency (ASE) of our hybrid cache-enabled HetNets are discussed under two user association strategies: 1) Maximum Received Power (Max-RP), where the requesting user

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A Survey on Multipath Routing Protocols for QoS Assurances in Real-Time Wireless Multimedia Sensor Networks

Cited by 193 publications

References 129 publications

A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-Power and Lossy Networks: A Focus on Core Operations

A Survey of Limitations and Enhancements of the IPv6 Routing Protocol for Low-Power and Lossy Networks: A Focus on Core Operations

Joint Activity Detection and Channel Estimation for IoT Networks: Phase Transition and Computation-Estimation Tradeoff

Cache-Enabled HetNets With Millimeter Wave Small Cells

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