Outage Constrained Multi-hope Spectrum Sharing System with Co-Channel Interference
- سال انتشار: 1394
- محل انتشار: دومین کنفرانس بین المللی مهندسی دانش بنیان و نوآوری
- کد COI اختصاصی: KBEI02_236
- زبان مقاله: انگلیسی
- تعداد مشاهده: 502
نویسندگان
Department of Electrical and Computer Engineering Babol Noshirvani University of Science and Technology Babol, Iran
Seyed Mehdi Hosseini Andargoli
Department of Electrical and Computer Engineering Babol Noshirvani University of Science and Technology Babol, Iran
چکیده
in this paper, we study power consumption in a multi-hop spectrum sharing system (MHSSS) with the presence of co-channel interference and under constraint of the outage probability (OP). Considering imperfect channel state (CSI) information, we investigate power consumption and propose an algorithm which jointly performs relay selection and power allocation. Convex optimization framework is used to minimize power consumption of the secondary system and determine powers for the relays. Furthermore, we derive an upper band and a lower band for the optimal transmit power. Numerical simulations are made and results verify theoretical analysis and demonstrate power efficiency of the proposed algorithmکلیدواژه ها
multi-hope; spectrum sharing; co-channel interference; power allocation; outage probabilityمقالات مرتبط جدید
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