Bit-Error Rate and Link Margin of In-Room NLOS Communications via Peak Millimetre Wave Beams

Emmanuel Trinidad; Lawrence Materum

doi:10.37934/araset.57.2.194203

Authors

Emmanuel Trinidad Department of Electronics Engineering, Don Honorio Ventura State University, Bacolor, 2001 Pampanga, Philippines
Lawrence Materum Department of Electronics and Computer Engineering, De La Salle University, Manila, 1004 Metro Manila, Philippines

DOI:

https://doi.org/10.37934/araset.57.2.194203

Keywords:

Channel models, indoor radio communications, millimeter wave propagation, multipath channels, non-line-of-sight propagation, single-carrier systems

Abstract

The 60 GHz frequency band supports gigabit-per-second (Gbps) communication but suffers greatly from line-of-sight obstruction. To address this issue and obtain the performance, the non-line-of-sight (NLOS) paths are investigated using six (6) antenna beamwidth pairs for beamforming emulation. This work utilizes the channel impulse response obtained from measurements and the resulting channel models. Based on the bit error rate performance evaluation, the results indicate that the system could achieve the target bit error rate of 10^(-4). As a result, not only are the channel models verified, but the results also show that complex equalization methods are unnecessary to achieve reliable communication in indoor 60 GHz scenarios. Hence, the beam steering-based model could replicate the measured channel with narrow antenna beamwidth together with beam tracking and switching. The low delay spread performance could lead to low-power consuming devices and multi-Gbps transmission by a single carrier with simple convolutional forward error-correcting codes (FEC). Furthermore, the narrow beamwidth pair of antennas can provide up to 4 to 9 dB link margins and a 10 to 15 m achievable communication range.