Collision Avoidance in Wireless Powered Sensor Networks with Backscatter Communications
| Main Authors: | Psomas, Constantinos, Krikidis, Ioannis |
|---|---|
| Format: | Proceeding Journal |
| Terbitan: |
, 2017
|
| Online Access: |
https://zenodo.org/record/1313830 |
Daftar Isi:
- Wireless powered communications is a promising technology for next-generation low-powered sensor networks such as the Internet of Things. This paper deals with backscatter communications in sensor networks, an ideal technology for low-powered battery-less devices. However, in contrast to conventional communications, backscattering suffers from collisions due to multiple concurrent transmissions and from a dyadic backscatter channel, which greatly attenuates the received signal at the reader. We study a wireless backscatter communication network from a large-scale point-of-view, and consider various techniques to overcome these limitations such as antenna directionality, ultra-narrow band transmissions and successive interference cancellation. Using stochastic geometry tools, we derive mathematical expressions for the decoding probability and present the significant gains, which can be achieved from these techniques.
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