The 2.5 GHz LTE auction in Brazil came to an end last week with total proceedings of 2.96 Billion Real ($1.42 Billion). The spectrum included a sliver of 450 MHz spectrum for rural access which regulator Anatel was not able to auction independently and was later included with the 2.5 GHz licenses.
Photon Orbital Angular Momentum (OAM) is a new technique to increase wireless channel capacity. However, not everyone agrees that this is a conceptually new area in radio communication and they make the case that OAM is a special mode of MIMO communications. This view was presented in a recent IEEE Transactions on Antennas & Propagation paper. The argument… Read More »