Novel Cognitive Radio Network Setup Mechanism Using Underlay as Control Channel to Enhance Efficiency
Interest in Dynamic Spectrum Access (DSA) remains powerful as the communications community efforts to solve the spectrum congestion problem. However, the basic problem of control channel is one that impediment the deployment of such dynamic networks. Now many studies of control channel have shown that using spectrum holes to transmit control information is a common rule. While such rule is lacking in aspects below. Firstly, Second Users (SU) can not have a common spectrum hole as control channel which leads to low link of Second Users. Secondly, the arrival of Primary User (PU) is unknown which causes interruption on the use of control channel. In this paper, we identify and discuss the way to begin the initial communication and setup a Cognitive Radio network with no need of using spectrum holes to convey control information in multi-hop scenarios. Simulations and derivations can show the change of the performance on the front aspects.
KeywordsDynamic Spectrum Access Control channel Multi-hop scenarios Spectrum underlay
This work was supported by the Key Development Program of Basic Research of China(JCKY2013604B001), the Nation Nature Science Foundation of China (61301095), Nature Science Foundation of Heilongjiang Province of China (F201408).
This paper is funded by the International Exchange Program of Harbin Engineering University for Innovation-oriented Talents Cultivation.
Meantime, all the authors declare that there is no conflict of interests regarding the publication of this article.
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