
In this paper, we investigate various methods to combat packet loss in a residential communication system based on the Bluetooth Low Energy (BLE) standard, focusing on BLE's connectionless mode (undirected advertising) in which no retransmissions are possible. We start by introducing two orthogonally polarised antennas at the receiver, thus improving the probability of successful reception. This is followed by enabling error correction using redundancy introduced by the Cyclic Redundancy Check (CRC) code of BLE. The CRC error correction is based on a novel approach of applying iterative decoding algorithms. We then consider a BLE system deployed in a residential environment and utilise the presence of multiple receivers that are necessary to provide coverage. These three techniques come at no cost for the transmitter, thus preserving its energy efficiency. The final technique deals with error control coding in the application layer, in which some redundancy is added at the transmitter before data is sent to the physical layer. By combining all four methods, a distributed error correction algorithm is developed. Using real BLE packets collected in a typical 2-storey house, it is shown that the designed system can correct 80% of all corrupted packets.
error correction, /dk/atira/pure/core/keywords/digital_health; name=Digital Health, /dk/atira/pure/core/keywords/digital_health, name=Digital Health, name=SPHERE, 004, /dk/atira/pure/core/keywords/eng_sphere, Bluetooth Low Energy, packet loss, /dk/atira/pure/core/keywords/eng_sphere; name=SPHERE
error correction, /dk/atira/pure/core/keywords/digital_health; name=Digital Health, /dk/atira/pure/core/keywords/digital_health, name=Digital Health, name=SPHERE, 004, /dk/atira/pure/core/keywords/eng_sphere, Bluetooth Low Energy, packet loss, /dk/atira/pure/core/keywords/eng_sphere; name=SPHERE
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 12 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
