Measurement and Simulation for Improving Indoor Wireless Communication System Performance at 2.4 GHz by Modifying the Environment

Abstract

Interest is rising in improving efficiency and productivity by increasing the received signal power, which is driven by the proliferation of wireless local area networks and the increasing use of portable computing devices such as laptops and PDAs. Waveguides comprising frequency selective surfaces are suggested for use in indoor wireless environments, and their impact on the propagation of radio waves is examined in this paper. Additional battery power and a link budget buffer are required for the obstructed (OBS) path because the received power is more attenuated than the line-of-sight path. Additionally, this study proposes a novel model for selectively improving radio propagation in confined spaces under OBS circumstances by reflecting channel radio waves into target regions, thus avoiding significant propagation loss. Finally, a small-scale interior environment has been built and tested in a half-wave chamber and a real room to demonstrate the idea in practice using ray tracing techniques.

Keywords

• Buildings
• frequency selective surface
• indoor radio propagation
• power
• waveguides