  Bumblebee is an innovative backscatter system that leverages productive
Bluetooth Low Energy (BLE) carriers to generate ZigBee transmissions. It
improves upon previous systems like FreeRider and Interscatter by eliminating
restrictions on exciters and receivers, resulting in reduced deployment costs
and increased throughput. To enable long-distance signal transmission, BLE
version 5 introduces LE Coded PHY. However, the paper proposing Bumblebee only
evaluates it with BLE version 4, which utilizes LE Uncoded PHY. In this paper,
we initially simulate Bumblebee using MATLAB to assess its design.
Subsequently, we extend Bumblebee to support LE Coded PHY in BLE version 5 and
conduct experiments to verify its performance.
