Trends in Broadband Cellular Communication Wireless communication is rapidly becoming the most popular solution to deliver voice and data services due to flexibility and mobility that can be offered at moderate infrastructure costs. Unfortunately, current wireless systems are unable to support some services offered by wireline systems (i.e., high quality video streaming) due to the limited data rates achievable over wireless links. At the same time, there is a growing … Continue reading →

MIMO Relay Channels Why study MIMO Relay Channels? Relay channels will play a central role in next-generation wireless systems. If a source wants to send a message to a distant sink in a relatively dense network, it can forward the message via several intermediate nodes. This would improve overall throughput and coverage. We can consider SISO relay channels, where each terminal employs a single antenna. Under this setup, though, there … Continue reading →