Ultra high speed wireless communication with low complexity transceiver

Abstract

Parallel Sequence Spread Spectrum (PSSS) is a physical layer (PHY) base band technology. It was selected for the wireless sensor network standard IEEE802.15.4-2006, in order to increase data rate and radio performance in fading channels for frequency bands below 1GHz. In the work presented in this paper PSSS is used for the first time in the 60 GHz ISM Band to achieve ultra-high transmission speed similar to IEEE802.11ad but at lower receiver complexity. A different encoding scheme than for IEEE802.15.4-2006 has been applied to improve the coverage range of the 60 GHz radio. Using an available 60GHz heterodyne radio we achieved a measured data rate of 4Gb/s at a distance of 3 m using a simple Vivaldi antenna. The signal processing was performed off-line using a Matlab implementation in a “Hardware in the Loop” approach. Furthermore we will outline the architecture of a mixed-signal (analog/digital) baseband processor that reduces the implementation complexity by at least one order of magnitude. This will result both in lower power dissipation as well as lower Silicon area consumption.