LDPC Over Multihop LoRa Nodes with Peeling Decoder

Wireless radio communication is expected to reach long distances and be of good quality. To achieve long-distance radio communication, relay stations can be added between the source to the destination points as needed. The utilization of wireless radio introduces vulnerabilities to the quality of communication due to noise and interference. In this research a multihop communications is created using four stationary LoRa nodes. Error correction and detection were added to the multihop communication. The Low-Density Parity Check (LDPC) regular binary 16x32 technique is used in this research for multihop communication at encoder node 1 and decoder node 4. Meanwhile, node 2 and node 3 serve as repeaters between node 1 and node 4. The type of LDPC used is binary encoder, and the decoder uses the peeling technique. Each node's implementation involves the use of hardware modules BeagleBone Black Industrial and LoRa Ebyte. The software utilized includes the debian console and Python programming. This multihop communication has undergone testing for parameters such as processing time, RSSI field test, and peeling error detection and correction ability.