نتایج جستجو برای: sfbc
تعداد نتایج: 128 فیلتر نتایج به سال:
In this paper we consider the application issue of the Alamouti coding scheme in filter bank based multicarrier (FBMC) systems. The presence of the inherent interference prevents the use of Alamouti coding scheme with FBMC modulation. Receiver schemes with interference cancellation are not always effective due to the error propagation. In this work, we propose some arrangements in the space-tim...
In this letter, a switched transmission technique is presented that can provide the orthogonal frequency division multiplexing (OFDM) systems with additional diversity gain. The space-time block coding (STBC) and space-frequency block coding (SFBC) are considered for the transmission of the OFDM signals. A proper coding scheme is selected based on the estimated normalized delay spread and norma...
This paper propose two advanced space-frequency schemes with a pre-filtering technique for downlink time division duplex (TDD) MC-CDMA system. We consider the use of antenna arrays at the base station (BS) and a single antenna at the mobile terminal (MT). We derive a multi-user pre-filtering technique that allows to format the transmitted signals so that the multiple access interference at mobi...
In this paper, we focus on joint channel estimation (JCE) of multi-cell networks, which is the basis for application of multi-cell cooperative. For overcoming the weakness that the existing multi-cell JCEs need power delay profile (PDP) knowledge of all multiple cells remained the same and known by receiver or pilot sequence sets of all cells being identical and other limitations, the paper pre...
The high Peak to Average Power Ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) and MIMO-OFDM systems reduces the system efficiency. In this paper, an extension of Tone Reservation (TR) method is introduced for PAPR reduction in Space Frequency Block Coded OFDM (SFBC-OFDM) systems. The proposed algorithm is based on a time domain kernel which is added to the signal of the anten...
A high spectral efficient system is expected to meet the growing demands of multimedia applications through a wireless medium. In this paper, a low complex high spectral efficient Reduced Multiple Input Single Output (RMISO)-Orthogonal Frequency Division Multiplexing (OFDM) system is proposed. The proposed system exploits the benefits of Rate Adaptive Bit Loading (RABL), Transmit Antenna Select...
Research of new diagnosis or prognosis biomarkers is a major challenge for the management of patients with complex pathologies like cancer. Clinical proteomics is one of the recent approaches to identify these biomarkers in biological fluids. Over the last five years, many problems related to the variability and the quality control of these analyses have been observed. This was notably related ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید