Content distribution and protocol design issue for mobile social networks: a survey

Akhtar, Rizwan; Shengua, Yan; Zhu, Zhiyu; Khan, Zuhaib Ashfaq; Memon, Imran; Rehman, Saeed Ur; Awan, Saeed Ehsan

doi:10.1186/s13638-019-1458-5

Cited by 11 publications

(10 citation statements)

References 86 publications

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“…In the above formula, n reject t represents the number of rejected services at time t. Similarly, n total t represents the total number of requests at time t, n accept represents the number of services received and L buff t is the buffer size at time t. Area occupied t represents the area occupied by the two-dimensional time-frequency resource grid at time t. Formulas ( 7) and ( 8) describe the reject rate at time t and the performance of long-term service rejection respectively. The resource utility ratio and buffer size are then represented in Equations ( 9) and (10).…”

Section: Performance Indicators and Evaluation Environmentmentioning

confidence: 99%

A novel scheme of cross‐network radio resources scheduling in SAGN based on unified resources mapping and genetic algorithm

Lin

et al. 2021

Int J Communication

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To decrease human deaths in the disaster and ensure the efficiency of emergency aid, high accuracy logistics can play an important role. To achieve this target, anytime and anywhere communications would contribute to rapid information interaction on situation monitoring of logistics. Space-air-ground network (SAGN) is the network combined with satellite network, aerial network, and territorial network, which can achieve global communication coverage. That means it would be a heterogeneous network, in which each network providing with different radio communication resources. If we would like to exploit the SAGN to achieve reliable support of communication, we have to solve the problems of the unified mapping of different radio communication resources. Besides, we should further design the exact scheduling scheme for the communication service of emergency logistics with global heterogeneous networks. Therefore, we propose a novel scheme of cross-network radio resources scheduling in SAGN based on unified resources mapping and genetic algorithm. First, we build the system model for SAGN in the scenario of emergency logistics. Second, the unified resource mapping method is proposed, which achieves global cross-network resources virtualization by the quality of service (QoS) bearer matching. Third, the multi-population genetic algorithm is introduced to relate with each network resource to achieve available virtual global radio communication resource scheduling. The simulation results show that the resource efficiency of this proposed scheme has a better performance compared with the other resource scheduling method, which increased by 11.8% compared with bottom-left (BL) algorithm.

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Section: Performance Indicators and Evaluation Environmentmentioning

confidence: 99%

A novel scheme of cross‐network radio resources scheduling in SAGN based on unified resources mapping and genetic algorithm

Lin

et al. 2021

Int J Communication

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“…In addition to traditional password-based mechanisms, Two Factor Authentication (TFA) techniques adds a registered token in possession of the user to further enforce authentication and verify that the user credentials have not been leaked. Nowadays, TFA is successfully adopted in the context of online banking [46], enterprise access [47], and mobile social networks [48], resorting to dedicated private solutions or commercial services, such as Encap Security [49], Duo [50] and Google 2-step verification [51], to name a few.…”

Section: A Backgroundmentioning

confidence: 99%

Short-Range Audio Channels Security: Survey of Mechanisms, Applications, and Research Challenges

Caprolu

Sciancalepore

Pietro

2021

IEEE Commun. Surv. Tutorials

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Short-range audio channels have appealing distinguishing characteristics: ease of use, low deployment costs, and easy to tune frequencies, to cite a few. Moreover, thanks to their seamless adaptability to the security context, many techniques and tools based on audio signals have been recently proposed. However, while the most promising solutions are turning into valuable commercial products, acoustic channels are also increasingly used to launch attacks against systems and devices, leading to security concerns that could thwart their adoption. To provide a rigorous, scientific, security-oriented review of the field, in this paper we survey and classify methods, applications, and use-cases rooted on short-range audio channels for the provisioning of security services-including Two-Factor Authentication techniques, pairing solutions, device authorization strategies, defense methodologies, and attack schemes. Moreover, we also point out the strengths and weaknesses deriving from the use of short-range audio channels. Finally, we provide open research issues in the context of short-range audio channels security, calling for contributions from both academia and industry.

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“…In this technique, the authors divided the complete network field into two parts to reduce the transmission energy, direct and indirect communication parts. In [22], the unique characteristics of social relationship with MSN (mobile social network) give rise to different protocol design issues are explained. In [23], a new computing paradigm for the optimization of parameters in adaptive beamforming using fractional processing is given.…”

Section: Literature Reviewmentioning

confidence: 99%

RBM: Region‐Based Mobile Routing Protocol for Wireless Sensor Networks

Mukhtar

Shiraz

Shaheen

et al. 2021

Wireless Communications and Mobile Computing

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Wireless sensor networks (WSNs) are employed for different applications for the reason of small-sized and low-cost sensor nodes. However, several challenges that include a low powered battery of the sensor nodes restrict their functionality. Therefore, saving energy in the routing process to extend network life is a serious concern while deploying applications on WSN. To this end, the key technology is clustering, which helps maximize scalability and network lifecycle. Base station (BS) collects data, aggregates it, and extracts the required information. To obtain the maximum outcome, the lifetime of the network is maximized by the use of different techniques and protocols. Data transmissions consume most of the network energy, and the transmissions over normal ranges require less energy as compared to transmissions over long ranges. Moreover, the nodes closer to the BS deplete their energy faster as compared to distant nodes because of traffic overload. The proposed protocol is aimed at reducing energy consumption and increasing the network lifetime. For this purpose, the network is divided into two regions: region 1 closer to the BS communicating directly, whereas region 2 farther away from the BS having routing nodes to communicate with the BS. Routing nodes do not take part in sensing function but will only move in region 2 collecting data and forwarding it to BS. MATLAB is used as the simulation tool for evaluation, and the results are compared with the existing optimized region-based efficient routing (AORED) and low-energy adaptive clustering hierarchical protocol (LEACH) techniques. The comparison showed that energy conservation and lifetime increased by 15%, and throughput is increased by more than 5% approximately.

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Content distribution and protocol design issue for mobile social networks: a survey

Cited by 11 publications

References 86 publications

A novel scheme of cross‐network radio resources scheduling in SAGN based on unified resources mapping and genetic algorithm

A novel scheme of cross‐network radio resources scheduling in SAGN based on unified resources mapping and genetic algorithm

Short-Range Audio Channels Security: Survey of Mechanisms, Applications, and Research Challenges

RBM: Region‐Based Mobile Routing Protocol for Wireless Sensor Networks

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