Open AccessEnergy‐efficient reporting scheme for cognitive radio networks
Author(s) -
Chilakala Sudhamani,
Saxena Ashutosh,
Vunnava Aswini
Publication year - 2021
Publication title -
iet networks
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 21
eISSN - 2047-4962
pISSN - 2047-4954
DOI - 10.1049/ntw2.12019
Subject(s) - cognitive radio , energy (signal processing) , energy consumption , scheme (mathematics) , computer science , efficient energy use , signal (programming language) , telecommunications , fusion center , computer network , node (physics) , channel (broadcasting) , real time computing , spectrum (functional analysis) , engineering , electrical engineering , wireless , statistics , mathematics , physics , mathematical analysis , structural engineering , quantum mechanics , programming language
Cooperative spectrum sensing in cognitive radio network consumes a large amount of energy during spectrum sensing and reporting. An energy‐efficient reporting scheme called the reduced energy consumption scheme for reporting has been proposed to reduce energy consumption. In this scheme, all secondary users will sense the channel and make a local decision about the spectrum. All these local decisions are forwarded to a common node known as the fusion centre. This counts the presence or absence of the primary user based on the secondary user's local decisions. Whenever the counters count is greater than or equal to the threshold then the fusion centre sends a stop reporting feedback signal to the secondary users. In this way the energy consumption is reduced by diminishing the reporting secondary users and the energy efficiency is improved. The simulation and numerical results show a notable improvement in the energy efficiency of a reduced spectrum sensing scheme compared to the conventional spectrum sensing method.