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A modified energy detection based dynamic spectrum sharing technique and its real time implementation on wireless platform for cognitive radio networks

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Title A modified energy detection based dynamic spectrum sharing technique and its real time implementation on wireless platform for cognitive radio networks
 
Creator Bhandari, Shruti
Joshi, Sunil
 
Subject Cognitive radio
Dynamic spectrum access
Spectrum sharing
WARP
Cooperative game
Shapley values
VCG auction
 
Description 1043-1052
Cognitive radio offers a flexible and efficient utilization of radio frequency resources by dynamic spectrum sharing as required in next gen (5G) architecture of wireless communication. The channel allocation time, probability of false alarm detection and spectral efficiency are the major performance parameters to characterize a spectrum sharing technique. This paper presents modified energy detection based dynamic channel allocation technique based on sensing the power spectral density of idle spectrum bands i.e. spectrum hole. Receiver operating characteristics (ROC) curves have been used to analyze the detector performance of sensing with respect to probability false alarm at different values of SNR. Allocation of unoccupied bands to the SUs has been done by coalition based cooperative game, which provides SUs with an incentive to cooperate. Based on their worth, SUs get payoffs which have been computed using Shapely values as a one-point solution. Vickrey–Clarke–Groves (VCG) auction mechanism has been used to allocate the spectrum resources fairly to each user. On the basis of allocation time, the present model for dynamic spectrum access appears to be more efficient as compared to the conventional opportunistic spectrum access model.
 
Date 2021-02-05T06:11:57Z
2021-02-05T06:11:57Z
2020-10
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/56156
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJEMS Vol.27(5) [October 2020]