This project focuses on high throughput and lower complexity using MIMO SC-FDMA detectors. In LTE SC-FDMA is used in the uplink, which saves power in mobile devices. Beam forming is a technique that transmits the input at different angles. Diversity in the MIMO transmits the input signal and anyone of the output received which is more similar to the transmitted signal. Thus the quality of servi...

To meet the requirements of high data rate, third generation partnership project (3GPP) has come across the development of long term evolution (LTE). High data rate can be achieved with the help of an advanced modulation method. Orthogonal Frequency Division Multiple Access (OFDMA) was considered as a modulation method especially in the downlink of the communication systems. It gives many advan...

We consider transmit beamforming for single-carrier frequency-division multiple access (SC-FDMA) transmission over frequency-selective multiple-input multiple-output (MIMO) channels. The beamforming filters are optimized for minimization of the sum of the mean-squared errors (MSEs) of the transmitted data streams after MIMO minimum mean-squared error linear equalization (MMSE-LE), and for minim...

Non-linear amplifiers that are used near saturation in satellites, cause severe distortions of the transmitted signal. This dissertation proposes novel signal processing techniques that counteract these distortions to improve performance. Firstly, the fact that the non-linearities introduced by memoryless bandpass amplifiers preserve the symmetries of theM -ary Quadrature Amplitude Modulation (...

In this article, we investigate the issue of massive access in a beyond fifth-generation (B5G) multibeam low-Earth orbit (LEO) satellite Internet-of-Things (IoT) network presence channel phase uncertainty due to channel-state information (CSI) conveyance from devices via gateway. Rather than time-division multiple (TDMA) or frequency-division (FDMA) with multicolor pattern, new nonorthogonal (N...

Internet of Things, an increasing number of machine to machine (M2M) devices are being deployed. In particular, one of the M2M applications, video surveillance, has been widely discussed. Long Term Evolution (LTE), which can provide a high rate of data transmission and wide range of coverage, is a promising standard to serve as an M2M video surveillance system. In this paper, we studied a perfo...

Single Carrier Frequency Division Multiple Access (SC-FDMA) has been adopted for 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) uplink communication since it combines the low peak to average power ratio feature of single-carrier transmission systems with the multipath resistance and flexible frequency allocation of orthogonal frequency-division multiple access (OFDMA). Unfo...

A differential positioning technique is proposed that is capable of exploiting the many radio frequency (RF) signals that are transmitted using frequency division multiple access (FDMA). The technique is designed to operate on ‘signals of opportunity’ (signals that are designed for purposes other than navigation), and requires no knowledge of the modulation format or signal content. Example FDM...