Full duplex cognitive radio: a new design paradigm for enhancing spectrum usage
نویسندگان
چکیده
منابع مشابه
Full-Duplex Cooperative Sensing for Spectrum-Heterogeneous Cognitive Radio Networks
In cognitive radio networks (CRNs), spectrum sensing is critical for guaranteeing that the opportunistic spectrum access by secondary users (SUs) will not interrupt legitimate primary users (PUs). The application of full-duplex radio to spectrum sensing enables SU to carry out sensing and transmission simultaneously, improving both spectrum awareness and CRN throughput. However, the issue of sp...
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According to the Federal Communications Commission (FCC) [1–3], the typical radio channel occupancy is less than 15%. The Dynamic Spectral Access has been proposed as a solution to increase the spectrum usage, and to solve the problem of the scarcity in the frequency resources due to the increasing in the demand on the wireless technologies. The Cognitive Radio (CR) technology is presented as a...
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Inspired by recent developments in full-duplex (FD) communications, we consider an opportunistic spectrum access (OSA) network in which secondary users (SUs) are capable of partial/complete self-interference suppression (SIS). This enables them to operate in either simultaneous transmit-and-sense (TS) or simultaneous transmit-and-receive (TR) modes, with the goal of achieving improved primary u...
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In Full-d uplex Cognitiv e Radios, the silen t period of the Secondary User (SU) during the Spectrum Sensing can be elimina ted by appl ying the Self -Interf erence Cancella tion (SIC). Due to the channel estima tion error and the hardw are imperf ections (the Phase Noise and the Non-Linear Distortion (NLD)) SIC is not perf ectl y perf ormed and resul ts in the Resid ual Self -Interf erence (RS...
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ژورنال
عنوان ژورنال: IEEE Communications Magazine
سال: 2015
ISSN: 0163-6804
DOI: 10.1109/mcom.2015.7105652