Death by Starvation?: backhaul and 5G

IEEE CTN Issue: September 2015

The increasing data volume in mobile networks is a challenge not only for the radio access interface but also for the backhaul. Looking ahead to 5G there are different approaches being proposed to increase the network capacity, including massive MIMO, usage of larger spectrum bands and densification of the network. Regardless which of these solutions are used, the backhaul will need to transport more data; but from an economical and technical perspective, densification is more challenging as it requires the backhaul to reach more access node sites. For the access interface, the shorter distance between the mobile device and the ...

5G, Social Justice and the role of the IEEE ComSoc

IEEE CTN Issue: August 2015

A few weeks ago, for my sins, I was transportation and security for a crowd of high-spirited teenagers heading off to a youth gathering in Detroit. Each evening the event organizers had a big get-together in the Ford Center, where they packed 30 thousand kids and their adult chaperones in for an evening of unreasonable enthusiasm, unbearably loud music and a few quite interesting talks. There was a lot of talk of social justice at this event; and what all these young folk could, and should, do to help Detroit get back on its feet. In particular, one young lady told us of the Empowerment Plan:  a company she had created based on a class project...

The Death of 5G part 2: Will analog be the death of massive MIMO?

IEEE CTN Issue: June 2015

The exponential growth of data rate has led to the demand for 5G wireless systems with an expected data bandwidth of several GHz and carrier frequencies in the millimeter wave range (tens of GHz to 100GHz) [1-5].  Due to large propagation losses at this frequency range, beamforming with massive MIMO plays a central role in establishing reliable communication links. It is expected that the required number of antennas will be an order of magnitude larger than existing wireless systems. This presents significant challenges in the analog front end design.