Wireless Channel Condition Aware Scheduling Algorithm for Hybrid Optical/Wireless Networks

Author(s):  
Ying Yan ◽  
Hao Yu ◽  
Lars Dittmann
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ajay Sharma ◽  
Rajinder Singh Kaler

Abstract The optical wireless communication has been designed by developing a model with the support of MATLAB simulator using Simulink where channel considered to be a free space. In this model, Additive White Gaussian Noise (AWGN) channel has used to analyze bit error rate (BER) and power loss of optical wireless signal at receiver. The consequence due to turbulence in atmosphere of free space on transmitted signal has examined. The BER and signal power have extremely ruined on rigorous atmospheric unstable condition even for a short distance in an optical wireless channel. The BER of less than 10−3 has been achieved for free space optical communication considered to be an excellent BER for FSO.


2011 ◽  
Author(s):  
P. Sri Saini ◽  
Shanthi Prince ◽  
P. Predeep ◽  
Mrinal Thakur ◽  
M. K. Ravi Varma

2021 ◽  
Author(s):  
Baogui Huang ◽  
Jiguo Yu ◽  
Chunmei Ma ◽  
Fengyin Li ◽  
Guangshun Li

Abstract Many shortest link scheduling algorithms adopt non-fading SINR interference model, which assumes that the received signal power will always remain determinate as long as the transmission power of the corresponding sender is fixed. In fact, because environment always influences the propagation of radio signals, the received signal power is by no means a certain value. Rayleigh fading is a statistical model for radio signals propagation. It assumes that the strength of a signal on a receiver is a random variable, varying with the Rayleigh distribution. This paper proposes a shortest link scheduling algorithm under the Rayleigh fading model (SLSRF). The SLSRF partitions the wireless network area into hexagons and colors the hexagons with 3 different colors such that two neighboring hexagons have different colors. The senders of the links scheduled simultaneously are arranged in hexagons with the same color. The correctness of the SLSRF is proved through theoretical analysis, and the efficiency is illustrated by elaborate simulations. Our simulation results demonstrate that the schedule delay of SLSRF is less than that of some results under the non-fading SINR interference model. Furthermore, we extend the SLSRF to a distributed version, which is suitable for large wireless networks.


Author(s):  
Imran Raza ◽  
Sidra Jabeen ◽  
Fozia Shabbir ◽  
Mashood Abbasi ◽  
Saqib Chaudhry ◽  
...  

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