Fatma A. Newagy

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— Spectrum sensing has been identified as a key enabling functionality to ensure that cognitive radios would not interfere with the primary users, by reliably detecting primary user signal. In this paper, the primary user signal is wireless microphone (WM) signal. The power of the WM signal is highly concentrated in the frequency domain. Due to this(More)
Motivated by the generalization of the α-μ distribution in describing the small-scale fading over wireless channels, in this paper, closed-form expressions for the Shannon capacity of the αμ fading channel operating under three adaptive transmission strategies are derived. These expressions are derived for the case of no diversity as well as for selection(More)
Spectrum Sensing is an important functionality of Cognitive Radio (CR). Accuracy and speed of estimation are the key indicators to select the appropriate spectrum sensing technique. In this paper, we focus on spectrum sensing of narrowband wireless microphone (WM) signals using the modified periodogram and Welch method for different window types. It is(More)
This paper introduces different construction techniques of parity-check matrix H for irregular LowDensity Parity-Check (LDPC) codes. The first one is the proposed Accurate Random Construction Technique (ARCT) which is an improvement of the Random Construction Technique (RCT) to satisfy an accurate profile. The second technique, Speed Up Technique (SUT),(More)
Multicarrier modulation (MCM) have become a fast developing area in wireless communication system. The filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) system may be the most popular multicarrier modulation technique used for next generation wireless communication technology 5G. It has several advantages such as supporting(More)
Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) may be one of the best waveform used in the next generation wireless communication system (5G system). Moreover, The FBMC/OQAM system supports high data rate, low impulse noise and high bandwidth efficiency. However, Similar to Orthogonal frequency-division multiplexing OFDM(More)
In single carrier frequency division multiple access (SC-FDMA) systems, frequency domain equalisers suffer performance degradation due to several channel impairments such as inter-symbol interference, inter-carrier interference (ICI), especially in multiple access/multiple input multiple output (MIMO) systems. This study presents a joint complex regularised(More)