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http://dx.doi.org/10.7840/kics.2013.38A.10.898

Resource Allocation Scheme Based on Spectrum Sensing for Device-to-Device Communications Underlaying Cellular Networks  

Kang, Gil-Mo (숭실대학교 대학원 전자공학과)
Shin, Oh-Soon (숭실대학교 정보통신전자공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38A, no.10, 2013 , pp. 898-907 More about this Journal
Abstract
For D2D communications underlaying cellular networks, it is essential to consider the mutual interference between the existing cellular communications and D2D communications as well as the spectral efficiency, as they need to share the same frequency. Accordingly, a resource allocation scheme should be designed in such a way that minimizes the mutual interference and maximizes the spectrum utilization efficiency at the same time. In this paper, we propose a resource allocation scheme based on cooperation of the base station and D2D terminals. Specifically, a D2D terminal senses the cellular spectrum to recognize the interference condition, chooses the best cellular resource, and reports the information to the base station. The base station allocates D2D resource such that the corresponding D2D link and cellular link share the same resource. The performance of the proposed resource allocation scheme is ated through compu under 3GPP LTE-Advanced scenarios.
Keywords
Device-to-Device (D2D); Resource Allocation; Spectrum Sensing; Spectrum Sharing; 3GPP LTE-Advanced;
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