Abstract
Satisfying the exponential data growth is one of the main challenges for the design of future wireless networks. Given the abundant spectrum availability at millimeter-wave bands, exploiting these frequencies is a natural choice. WiGig (also known as 60 GHz WiFi) allows multi-gigabit transmissions in short range wireless links. The maximum data transfer rates occur in line of sight (LOS) connections. Given the small operating wavelength, obstructing the LOS causes significant power losses, severely impacting the attainable throughput of each user. This article presents empirical results to parameterize typical small-scale fades caused by pedestrians when blocking the LOS, in areas where a WiGig access point serves indoor users. Our results show that fades can be as large as 21 dB, in average. Furthermore, burst of fades are common, lasting up to 5200 ms in 90% of the observed cases.
Highlights
WiGig, known as 60 GHz Wi-Fi, allows devices to communicate, without wires, at multi-gigabit speeds within the mm-wave band
Given that we aim to report the general performance of the channel when pedestrians exist within a room, moving freely, the following analysis will not consider the exact position where a pedestrian crossed the line of sight (LOS) as a parameter
CASE 1: SYNCHRONIZED MOVEMENT OF PEDESTRIANS We will first report the results for the scenario where groups of 1−7 pedestrians followed a predefined trajectory, crossing the LOS simultaneously
Summary
WiGig, known as 60 GHz Wi-Fi, allows devices to communicate, without wires, at multi-gigabit speeds within the mm-wave band. It enables high-speed wireless data transfer, high resolution multimedia transmissions, among many other services. Performing empirical studies for 60 GHz mm-wave wireless channels is relevant for the design of high-speed wireless technologies, as those in [1]. In this frequency band, wireless links suffer severe losses and shadowing due to pedestrian movement. The use of highly directional antennas is often considered as a solution to overcome such adverse channel impairments
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