In this paper, a parametric directional-based MIMO channel model is presented which takes multipath clustering into account. The directional propagation path parameters include azimuth of arrival (AoA), azimuth of departure (AoD), delay, and power. MIMO measurements are carried out in an indoor office environment using the virtual antenna array method with a vector network analyzer. Propagation...

Powerful applications such as Microsoft Office’s Excel and Word are widely used to perform common tasks in the workplace and in education. Scripting within these applications allows unanticipated user requirements to be addressed. We show that such extensibility, intended to support office automation-type applications, is well suited to the creation of learning activities and learning environme...

† Supported in parts by the Alberta Informatics Circle of Research Excellence (iCORE), the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Canadian Foundation for Innovation (CFI) and the National Sciences Foundation (NSF) under grant ECS 9979323. Abstract A mobile 4x4 multiple input multiple output (MIMO) system has been constructed and used to perform wireless measure...

OBJECTIVE To evaluate the effect of humidification on the odour, acceptability, and stuffiness of indoor air. METHODS In a six period cross over trial at the Pasila Office Center, Helsinki, the air of two wings of the building in turn were ventilated with air of 30%-40% humidity. A third wing served as a non-humidified control area. The quality of indoor air was assessed weekly by a panel con...

This study investigated whether positive human emotion can be set as a goal through the lighting design process. The first used model of – circumplex affect to characterise four different states (liveliness, relaxation, tense and gloom). Second, five professional designers were recruited asked devise concepts each lively relaxing workspace lit environment. A total fifteen scenarios with intenti...

Abstract Often the criteria for designing office lighting is to increase efficiency through a bright and evenly distributed lighting. Yet, research has found that this static leads an unstimulating, boring, dull luminous environment supports neither task focus, nor pleasant atmosphere. The goal of paper create closer connection natural light by inspired as phenomenon creates lively more nature-...