scholarly journals An Efficient Algorithm for End-to-End Latency Optimization Over IEEE 802.15.4 Wireless Network for IoT Applications

2021 ◽  
Vol 14 (5) ◽  
pp. 336-347
Author(s):  
Imane Dbibih ◽  
Keyword(s):  
Wireless Network ◽  
Efficient Algorithm ◽  
Ieee 802.15.4 ◽  
Iot Applications ◽  
End To End

scholarly journals Evaluation of ZigBee Topology Effect on Throughput and End to End Delay Due to Different Transmission Bands for IoT Applications

2020 ◽  
Vol 16 (3) ◽  
pp. 254-259
Author(s):  
Yehia R. Hamdy ◽  
Ahmed I Alghannam
Keyword(s):  
Ieee 802.15.4 ◽  
Transmission Band ◽  
Maximum Throughput ◽  
Iot Applications ◽  
End To End Delay ◽  
Star Tree ◽  
Minimum Delay ◽  
End To End ◽  
Riverbed Modeler ◽  
Ieee 802.15.4 Standard

ZigBee is widely used in wireless network in Internet of Things (IoT) applications to remotely sensing and automation due to its unique characteristics compared to other wireless networks. According to ZigBee classification of IEEE 802.15.4 standard, the network consists of four layers. The ZigBee topology is represented in second layer. Furthermore, the ZigBee topology consists of three topologies, star, tree and mesh. Also there are many transmission bands allowed in physical layer, such as 2.4 GHz, 915 MHz, 868 MHz. The aim of this paper is to evaluate the effect of ZigBee topologies on End to End delay and throughput for different transmission bands. Riverbed Modeler is used to simulate multiple ZigBee proposed scenarios and collect the results. The results of the study recommend which topology should be used at each transmission band to provide lowest End to End delay or obtain maximum throughput, which is case sensitive in some IoT applications that required for example minimum delay time or sending high amount of data.

A Residual Phase Noise Compensation Method for IEEE 802.15.4 Compliant Dual-Mode Receiver for Diverse Low Power IoT Applications

2019 ◽  
Vol 6 (2) ◽  
pp. 3437-3447 ◽  
Author(s):  
Abdullah Zubair Mohammed ◽  
Ajay Kumar Nain ◽  
Jagadish Bandaru ◽  
Ajay Kumar ◽  
D. Santhosh Reddy ◽  
...  
Keyword(s):  
Low Power ◽  
Phase Noise ◽  
Ieee 802.15.4 ◽  
Compensation Method ◽  
Dual Mode ◽  
Noise Compensation ◽  
Iot Applications ◽  
Residual Phase

scholarly journals Payoff Optimization Through Wireless Network Virtualization for IoT Applications: A Three Layer Game Approach

2019 ◽  
Vol 6 (2) ◽  
pp. 2797-2805 ◽  
Author(s):  
Danda B. Rawat ◽  
Amani Alshaikhi ◽  
Abdullah Alshammari ◽  
Chandra Bajracharya ◽  
Min Song
Keyword(s):  
Wireless Network ◽  
Network Virtualization ◽  
Iot Applications ◽  
Wireless Network Virtualization

Benchmarks Comparing for IEEE 802.15.4 with Hidden Terminals

2011 ◽  
Vol 403-408 ◽  
pp. 1950-1955
Author(s):  
Zhen Hua Wu ◽  
Xiao Chuan Huang ◽  
Jian Shu
Keyword(s):  
Wireless Network ◽  
Network Performance ◽  
Ieee 802.15.4 ◽  
Performance Degradation ◽  
Data Generation ◽  
Main Research ◽  
Network Load ◽  
Hidden Terminals ◽  
Hidden Terminal ◽  
Packet Length

Hidden terminal problem (HTP) has been a main research aspect in the field of wireless network performance analyzing and testing since it was formulated in 1970s. This article conducts a relatively comprehensive testing on the performance degradation of IEEE 802.15.4 network, which is beacon enabled, star architecture and using slotted CSMA/CA algorithm, due to HTP. All simulate experiments are conducted in NS-2. The experiment results show that: data generation form has little impact on HTP; packet length has more effect on HTP than the number of packets; HTP is trivial when network load is lower than 10%; acknowledge mechanism enlarges extremely HTP; increasing the value of beacon order (BO) is help for alleviating HTP when BO value is small than 6. These conclusions are useful for understanding the features of HTP in IEEE 802.15.4 networks.

scholarly journals Competition of Duopoly MVNOs for IoT Applications through Wireless Network Virtualization

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Wanli Zhang ◽  
Xianwei Li ◽  
Liang Zhao ◽  
Xiaoying Yang
Keyword(s):  
Radio Frequency ◽  
Wireless Network ◽  
Network Performance ◽  
Stackelberg Game ◽  
Network Virtualization ◽  
Network Services ◽  
Network Service ◽  
Iot Applications ◽  
Wireless Network Virtualization ◽  
Iot Devices

Network performance is of great importance for processing Internet of Things (IoT) applications in the fifth-generation (5G) communication system. With the increasing number of the devices, how network services should be provided with better performances is becoming a pressing issue. The static resource allocation of wireless networks is becoming a bottleneck for the emerging IoT applications. As a potential solution, network virtualization is considered a promising approach to enhancing the network performance and solving the bottleneck issue. In this paper, the problem of wireless network virtualization is investigated where one wireless infrastructure provider (WIP), mobile virtual network operators (MVNOs), and IoT devices coexist. In the system model under consideration, with the help of a software-defined network (SDN) controller, the WIP can divide and reconfigure its radio frequency bands to radio frequency slices. Then, two MVNOs, MVNO1 and MVNO2, can lease these frequency slices from the WIP and then provide IoT network services to IoT users under competition. We apply a two-stage Stackelberg game to investigate and analyze the relationship between the two MVNOs and IoT users, where MVNO1 and MVNO2 firstly try to maximize their profits by setting the optimal network service prices. Then, IoT users make decisions on which network service they should select according to the performances and prices of network services. Two competition cases between MVNO1 and MVNO2 are considered, namely, Stackelberg game (SG) where MVNO1 is the leader whose price of network service is set firstly and MVNO2 is the follower whose network service price is set later and noncooperative strategic game (NSG) under which the service prices of MVNO1 and MVNO2 are simultaneously set. Each IoT user decides whether and which MVNO to select on the basis of the network service prices and qualities. The numerical results are provided to show the effectiveness of our game model and the proposed solution method.

scholarly journals Application-Driven End-to-End Slicing: When Wireless Network Virtualization Orchestrates With NFV-Based Mobile Edge Computing

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 26567-26577 ◽  
Author(s):  
Kai Han ◽  
Shengru Li ◽  
Shaofei Tang ◽  
Huibai Huang ◽  
Sicheng Zhao ◽  
...  
Keyword(s):  
Wireless Network ◽  
Network Virtualization ◽  
Edge Computing ◽  
Mobile Edge Computing ◽  
Wireless Network Virtualization ◽  
End To End

scholarly journals An Efficient Superframe Structure with Optimal Bandwidth Utilization and Reduced Delay for Internet of Things Based Wireless Sensor Networks

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 1971 ◽  
Author(s):  
Sangrez Khan ◽  
Ahmad Naseem Alvi ◽  
Muhammad Awais Javed ◽  
Byeong-hee Roh ◽  
Jehad Ali
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Internet Of Things ◽  
Large Scale ◽  
Ieee 802.15.4 ◽  
Fine Tuning ◽  
Wireless Sensor ◽  
Bandwidth Utilization ◽  
Iot Applications ◽  
Ieee 802.15.4 Standard

Internet of Things (IoT) is a promising technology that uses wireless sensor networks to enable data collection, monitoring, and transmission from the physical devices to the Internet. Due to its potential large scale usage, efficient routing and Medium Access Control (MAC) techniques are vital to meet various application requirements. Most of the IoT applications need low data rate and low powered wireless transmissions and IEEE 802.15.4 standard is mostly used in this regard which offers superframe structure at the MAC layer. However, for IoT applications where nodes have adaptive data traffic, the standard has some limitations such as bandwidth wastage and latency. In this paper, a new superframe structure is proposed that is backward compatible with the existing parameters of the standard. The proposed superframe overcomes limitations of the standard by fine-tuning its superframe structure and squeezing the size of its contention-free slots. Thus, the proposed superframe adjusts its duty cycle according to the traffic requirements and accommodates more nodes in a superframe structure. The analytical results show that our proposed superframe structure has almost 50% less delay, accommodate more nodes and has better link utilization in a superframe as compared to the IEEE 802.15.4 standard.

Perceptually Optimized UDP-Lite Protocol for 3D Model Streaming among Lossy Network

2010 ◽  
Vol 143-144 ◽  
pp. 533-537
Author(s):  
Bai Lin Yang
Keyword(s):  
Wireless Network ◽  
3D Model ◽  
Important Data ◽  
End To End Delay ◽  
Simulation Results ◽  
End To End

This paper proposes a perceptually optimized UDP-lite protocol for streaming the 3D model over lossy wireless network. Before the transmission, the model is divided into perceptually important data and less perceptually important data and constructed into a progressive representation. And then, the progressive model is streamed by the modified protocol based on the UDP_lite protocol. The simulation results demonstrate that end-to-end delay has significant improvement and the graphics quality has no apparent degradation.

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