This paper investigates the performance of MC-CDMA with link adaptation in the uplink of a wireless communication system. Two types of link adaptation approaches can be distinguished: 1) Exploitation of channel state information (CSI) at the transmitter and 2) exploitation of CSI at both the transmitter and the receiver. Based on the theoretical lower bounds for the different approaches we desi...

Alomouti’s space-time coding scheme for Multi-Input Multi-Output (MIMO) system has drawn much attention in 4G wireless technologies. Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and enhance the system capacity on time variant ...

Alamouti’s space-time coding scheme for Multi-Input Multi-Output (MIMO) system has drawn much attention in 4G wireless technologies. Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and enhance the system capacity on time variant ...

Target reader group are engineering students who want to perform tests using pulsed or chirped signals. Current Radar development is focusing the area of signal processing. This is taken into account by this educational note, where the R&S® SMW / SMBV instruments on the transmitter side and R&S®FSW / FSV instruments on the receiver side are combined to a closed loop Radar system, performing rad...

For a multiple-input multiple-output (MIMO) radar system adopting the Neyman-Pearson (NP) criterion, a detection algorithm for MIMO radar with arbitrarily correlated observation channels in the presence of possible Non-Gaussian clutter-plusnoise is analyzed. Simulation results show that both the correlation of the observation channels and the correlation of the clutter-plus-noise will reduce th...

Researchers have recently proposed a widely separated multiple-input multiple-output (MIMO) radar using monopulse angle estimation techniques for target tracking. The widely separated antennas provide improved tracking performance by mitigating complex target radar cross-section fades and angle scintillation. An adaptive array is necessary in this paradigm because the direct path from any trans...

This thesis concerns the design of transmitter-receiver chains for wideband radar systems. The transmitter side employs one, or several, highly flexible signal generators, which are able to generate signals with a large bandwidth. At the receiver side, when we are are able to select receiver filters, we have the freedom to optimize also the receiver filters. Herein, the transmit waveforms and r...

In High Speed Downlink Packet Access (HSDPA), the majority of results assumes that perfect channel estimation is available and does not consider a suitable method of channel estimation or its effect on system performance. In this paper, we present a channel estimation based on a simple pilot scheme with space time rake receiver taking into account the speed of User Equipment (UE) in HARQ contex...