scholarly journals A Dynamic Time-slot Assignment for Ground Wireless Sensor Network

Author(s):  
Gao Ren ◽  
Tang Long ◽  
Hu Wen
2019 ◽  
Vol 13 (18) ◽  
pp. 2932-2940 ◽  
Author(s):  
Ching-Lung Chang ◽  
Chuan-Yu Chang ◽  
Shuo-Tsung Chen ◽  
Shu-Yi Tu ◽  
Kuan-Yi Ho

2018 ◽  
Vol 14 (5) ◽  
pp. 155014771877400 ◽  
Author(s):  
Hassel Aurora Alcalá Garrido ◽  
Mario E Rivero-Angeles ◽  
Eleazar Aguirre Anaya ◽  
Felipe A Cruz-Perez ◽  
S Lirio Castellanos-Lopez ◽  
...  

This article studies the performance of a wireless sensor network with cognitive radio capabilities to gather information about structural health monitoring of buildings in case of seismic activity. Since the use of the local area network is intensive in office and home environments, we propose the use of empty cellular channels (primary system). As such, the structural health monitoring does not degrade the local communications. Thus, the wireless sensor network for structural health monitoring acts as secondary network. Two discrete-time analytical approaches are proposed and developed to evaluate the system performance in terms of both the average packet delay and average energy consumption. The first one is an approximation suitable for the case when the time slot duration is small relative to the mean call inter-arrival time. The second model is accurate for any time slot duration and inter-arrival times.


2010 ◽  
Vol 37-38 ◽  
pp. 1619-1624
Author(s):  
Jin Dong Zhao ◽  
Yao Lin ◽  
Jin Qin

In IEEE802.15.4 compatible network, TDMA mechanism was used to access the medium and all nodes communicate to each other within one superframe periodically. In order to use the time slot efficiently, graph coloring algorithms are used to schedule the time slots in wireless sensor network. In this paper, the impacts of different assignments on network performance were analyzed and the result was extended to mesh topology network. The proposed data delay model was used to design a PSO algorithm to optimize the assignment schema. Finally, simulation was carried out to verify the practicability of the algorithm and the optimization effect was shown.


Sign in / Sign up

Export Citation Format

Share Document