Internet-of-Things Communication Protocol for Low-Cost Devices in Heterogeneous Wireless Networks

2017 ◽  
Author(s):  
Svetozar Ilchev ◽  
Zlatoliliya Ilcheva
Keyword(s):  
Wireless Networks ◽  
Internet Of Things ◽  
Communication Protocol ◽  
Low Cost ◽  
Heterogeneous Wireless Networks

scholarly journals Narrowband Internet of Things (NB-IoT): From Physical (PHY) and Media Access Control (MAC) Layers Perspectives

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2613 ◽  
Author(s):  
Collins Burton Mwakwata ◽  
Hassan Malik ◽  
Muhammad Mahtab Alam ◽  
Yannick Le Moullec ◽  
Sven Parand ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Access Control ◽  
Low Power ◽  
Low Cost ◽  
Heterogeneous Wireless Networks ◽  
Future Research ◽  
Media Access Control ◽  
Comprehensive Overview ◽  
Mac Layers ◽  
Research Activities

Narrowband internet of things (NB-IoT) is a recent cellular radio access technology based on Long-Term Evolution (LTE) introduced by Third-Generation Partnership Project (3GPP) for Low-Power Wide-Area Networks (LPWAN). The main aim of NB-IoT is to support massive machine-type communication (mMTC) and enable low-power, low-cost, and low-data-rate communication. NB-IoT is based on LTE design with some changes to meet the mMTC requirements. For example, in the physical (PHY) layer only single-antenna and low-order modulations are supported, and in the Medium Access Control (MAC) layers only one physical resource block is allocated for resource scheduling. The aim of this survey is to provide a comprehensive overview of the design changes brought in the NB-IoT standardization along with the detailed research developments from the perspectives of Physical and MAC layers. The survey also includes an overview of Evolved Packet Core (EPC) changes to support the Service Capability Exposure Function (SCEF) to manage both IP and non-IP data packets through Control Plane (CP) and User Plane (UP), the possible deployment scenarios of NB-IoT in future Heterogeneous Wireless Networks (HetNet). Finally, existing and emerging research challenges in this direction are presented to motivate future research activities.

scholarly journals Comparative study between metaheuristic algorithms for internet of things wireless nodes localization

2022 ◽  
Vol 12 (1) ◽  
pp. 660
Author(s):  
Rana Jassim Mohammed ◽  
Enas Abbas Abed ◽  
Mostafa Mahmoud El-gayar
Keyword(s):  
Wireless Networks ◽  
Internet Of Things ◽  
Heuristic Algorithms ◽  
Narrow Range ◽  
Low Cost ◽  
Grey Wolf ◽  
Grey Wolf Optimization ◽  
Wide Range ◽  
Limited Power ◽  
Metaheuristic Optimization Algorithms

<p>Wireless networks are currently used in a wide range of healthcare, military, or environmental applications. Wireless networks contain many nodes and sensors that have many limitations, including limited power, limited processing, and narrow range. Therefore, determining the coordinates of the location of a node of the unknown location at a low cost and a limited treatment is one of the most important challenges facing this field. There are many meta-heuristic algorithms that help in identifying unknown nodes for some known nodes. In this manuscript, hybrid metaheuristic optimization algorithms such as grey wolf optimization and salp swarm algorithm are used to solve localization problem of internet of things (IoT) sensors. Several experiments are conducted on every meta-heuristic optimization algorithm to compare them with the proposed method. The proposed algorithm achieved high accuracy with low error rate (0.001) and low power <br />consumption.</p>

scholarly journals A Novel Handoff Necessity Estimation Approach Based on Travelling Distance

2018 ◽  
Vol 7 (2) ◽  
pp. 105
Author(s):  
Jyoti Madaan ◽  
Indu Kashyap
Keyword(s):  
Wireless Networks ◽  
Mobile Communications ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Low Cost ◽  
Heterogeneous Wireless Networks ◽  
Threshold Value ◽  
Local Area ◽  
Considerable Proportion ◽  
Area Network

<p><em>Mobility management is one of the most important challenges in Next Generation Wireless Networks (NGWNs) as it enables users to move across geographic boundaries of wireless networks. Nowadays, mobile communications have heterogeneous wireless networks offering variable coverage and Quality of Service (QoS). The availability of alternatives generates a problem of occurrence of unnecessary handoff that results in wastage of network resources. To avoid this, an efficient algorithm needs to be developed to minimize the unnecessary handoffs. Conventionally, whenever  Wireless Local Area Network (WLAN) connectivity is available, the mobile node switch from cellular network to wireless local area network  to gain maximum use of high bandwidth and low cost of wireless local area network as much as possible. But to maintain call quality and minimum number of call failure, a considerable proportion of these handovers should be determined. Our algorithm makes the handoff to wireless local area network only when the Predicted Received Signal Strength (PRSS) falls below a threshold value and travelling distance inside the wireless local area network is larger than a threshold distance.Through MATLAB simulation, we show that our algorithm is able to improve handover performance.<strong> </strong></em></p>

Enabling multimedia aware vertical handover Management in Internet of Things based heterogeneous wireless networks

2017 ◽  
Vol 76 (24) ◽  
pp. 25919-25941 ◽  
Author(s):  
Murad Khan ◽  
Sadia Din ◽  
Moneeb Gohar ◽  
Awais Ahmad ◽  
Salvatore Cuomo ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Internet Of Things ◽  
Heterogeneous Wireless Networks ◽  
Vertical Handover ◽  
Handover Management

Application of MADM Method VIKOR for Vertical Handoff in Heterogeneous Wireless Networks

2012 ◽  
Vol E95-B (2) ◽  
pp. 599-602 ◽  
Author(s):  
Enrique STEVENS-NAVARRO ◽  
Rubén GALLARDO-MEDINA ◽  
Ulises PINEDA-RICO ◽  
Jesús ACOSTA-ELIAS
Keyword(s):  
Wireless Networks ◽  
Heterogeneous Wireless Networks ◽  
Vertical Handoff

Bringing Security to The Smallest Embedded Systems

2017 ◽  
Author(s):  
JOSEPH YIU
Keyword(s):  
Internet Of Things ◽  
Embedded Systems ◽  
Low Cost ◽  
Security Requirements ◽  
The Internet ◽  
Security Measures ◽  
Significant Challenge ◽  
Iot Devices

The increasing need for security in microcontrollers Security has long been a significant challenge in microcontroller applications(MCUs). Traditionally, many microcontroller systems did not have strong security measures against remote attacks as most of them are not connected to the Internet, and many microcontrollers are deemed to be cheap and simple. With the growth of IoT (Internet of Things), security in low cost microcontrollers moved toward the spotlight and the security requirements of these IoT devices are now just as critical as high-end systems due to:

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