Design of an Optimum Channel Sensing Mechanism for Cognitive Radios

Authors

  • J Divya Lakshmi, Rangaiah L, Mallikarjun P Y

Abstract

The radio wave frequency spectrum demanded bands for a large number of users. The limited availability of the spectrum does not allow new users to transmit information. Cognitive radio systems use signal processing and networking techniques to use the unused/unoccupied spaces in the spectrum to accommodate new users in the form of secondary users. Channel sensing mechanism is the first step in implementing cognitive radio systems in which the primary users and the details of their operations are sensed before using the unused spaces. This paper surveys some of the efficient channel sensing mechanisms and proposes a novel method in which the bandwidth and packet drop ratio are used as parameters for transmission by secondary users.

Keywords:Cognitive Radio systems, Channel sensing, Bandwidth allocation, Packet drop ratio.

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Published

2020-05-12

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Section

Articles