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Spatial Modulation (SM) is a recently developed transmit technique, and it has attracted wide interests for it gains higher transmit rate than single-input-single-output (SISO) system and provides simpler transceiver structure and lower power consumption compared with traditional MIMO system. In this paper, we propose the spatial modulation systems with frequency and quadrature amplitude modulation...
In this paper, we propose an advanced automatic modulation classification (AMC) method for cognitive radio (CR). Conventional AMC algorithms employ some pattern recognition algorithms such as hidden markov model (HMM) and support vector machine (SVM) to recognize the signal modulations through the characters of spectral correlation, e.g., a-profile, f-profile, average value, and etc. However, these...
Secondary users (SUs) should have power constraints because primary users (PUs) should not be interfered by SUs in cognitive radio (CR) network. Therefore it is important for SUs to maximize throughput and ensure quality of service (QoS) on the premise of generating no interference to PUs. In this paper, SUs are equipped with multiple antennas. Multiple-input multiple-output (MIMO) wireless communication...
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