Spectrum sensing scheme for overlay cognitive radio networks

Wen Long Chin, Jia Ming Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)


Considering the effects of primary user traffic, timing misalignment and multiple arrival and departure issues in a sensing period should be addressed for spectrum sensing in future overlay cognitive radio (CR) networks, such as femtocell networks. To achieve this goal, division of the whole sensing duration into multiple windows is proposed. For each window, a two-step detection scheme, i.e. coarse and fine detection, is proposed to improve the performance of the conventional energy detector (ED) in the overlay CR scenario.

Original languageEnglish
Pages (from-to)1552-1554
Number of pages3
JournalElectronics Letters
Issue number19
Publication statusPublished - 2015 Sep 17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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