One-Hop Out-of-Band Control Planes for Multi-Hop Wireless Sensor Networks

• DOI: 10.1145/3342100
• Publication Date: 2019-07-29T20:55:51Z
• Authors: Chaojie Gu; Rui Tan; Xin Lou
• Keywords: Control channel; LPWAN

Separation of Control and Data Planes (SCDP) is a desirable paradigm for low-power multi-hop wireless sensor networks requiring high network performance manageability. Existing SCDP generally adopt an in-band control plane scheme in that the control-plane messages are delivered by their data-plane networks. The physical coupling two planes may lead to undesirable consequences. Recently, multi-radio platforms (e.g., TI CC1350 OpenMote B) increasingly available, which make separation data possible. To advance architecture design, we propose leverage on long-range communication capability Low-Power Wide-Area Network (LPWAN) radios form one-hop out-of-band planes. LoRaWAN, open, inexpensive, ISM band based LPWAN radio, chosen prototype our called LoRaCP. Several characteristics LoRaWAN such as downlink-uplink asymmetry primitive ALOHA media access need be dealt with achieve reliability efficiency. address these challenges, TDMA-based multi-channel transmission designed, features urgent channel negative acknowledgment. On testbed 16 nodes, LoRaCP applied physically separate Collection Tree Protocol (CTP) from its Zigbee-based network. Extensive experiments show increases CTP’s packet delivery ratio 65% 80% presence external interference, while consuming per-node average radio power 2.97mW only.