2 research outputs found
Realistic Indoor Path Loss Modeling for Regular WiFi Operations in India
Indoor wireless communication using Wireless Fidelity (WiFi) is becoming a
major need for the success of Internet of Things (IoT) and cloud robotics in
both developed and developing countries. With different operating conditions,
interference, obstacles and type of building materials used, it is difficult to
predict the path loss components in an indoor environment, which are crucial
for the network design. It has been observed that the indoor path loss models
proposed for western countries cannot be directly used in Indian scenarios due
to variations in building materials utilized, floor plans, etc. In this paper,
we have proposed a non-deterministic statistical indoor path loss model- Tata
Indoor Path Loss Model (T-IPLM) which can be used for the 2.4 - 2.5 GHz,
Industrial Scientific and Medical (ISM) band. To propose and validate, we have
conducted several drive tests with different conditions such as busy office
premise with obstacles, open office premise, corridor, canteen, and
multi-storey office locations, etc. We have also compared T-IPLM with popular
path loss models such as ITU-R and Log-distance; T-IPLM matches closely with
the drive test results as compared to other models. We believe that T-IPLM
model can be used extensively to design accurate indoor communication networks
required for regular WiFi communications and deployment and operations of IoT
and cloud robotics.Comment: Published in 23rd National Conference on Communications, NCC 2017,
IEE
Measurement, Characterization and Modeling of LoRa Technology in Multi-floor Buildings
In recent years, we have witnessed the rapid development of LoRa technology,
together with extensive studies trying to understand its performance in various
application settings. In contrast to measurements performed in large outdoor
areas, limited number of attempts have been made to understand the
characterization and performance of LoRa technology in indoor environments. In
this paper, we present a comprehensive study of LoRa technology in multi-floor
buildings. Specifically, we investigate the large-scale fading characteristic,
temporal fading characteristic, coverage and energy consumption of LoRa
technology in four different types of buildings. Moreover, we find that the
energy consumption using different parameter settings can vary up to 145 times.
These results indicate the importance of parameter selection and enabling LoRa
adaptive data rate feature in energy-limited applications. We hope the results
in this paper can help both academia and industry understand the performance of
LoRa technology in multi-floor buildings to facilitate developing practical
indoor applications.Comment: 10 pages, 9 figure