MIMO System Prototyping Prototyping is key to understanding the operation of real-world wireless systems. It provides access to real propagation channels and better simulations impairments such as amplifier nonlinear, gain/phase offset, quantization effects, and timing jitter that are often overlooked in simulations. To obtain the benefits from studying these effects, we have built several prototypes to study topics such as MIMO-OFDM communication and MIMO ad hoc networking. Click on the … Continue reading →

Limited Feedback Wireless communication systems have improved efficiency in several dimensions in the past decade. One prominent change is the sweeping incorporation of multiple antennas, at both the transmitter and receiver, to achieve higher capacity, better quality, and resilience to interference through new modes of operation. A corresponding advance, resulting from increasing flexibility in the transmitter configuration, is algorithms that adapt the transmit strategy to the dynamic propagation environment. The … Continue reading →