Non‐stationarity of body area networks for sleep monitoring. Issue 15 (1st July 2013)

• Record Type: Journal Article
• Authors: Chaganti, V.; Hanlen, L.; Smith, D.
• Is Part Of: Electronics letters. Volume 49:Issue 15(2013)
• Page Start: 927
• Page End: 929
• Publication Date: 2013-07-01
• Subjects: biomedical telemetry -- patient monitoring -- probability -- sleep -- body area networks -- body sensor networks; body area networks -- sleep monitoring -- BAN -- channel gain -- first‐order distribution -- second‐order distribution -- data lengths -- stationarity; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2013.1511
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : The stationarity of the body area network (BAN) channel when the subject is sleeping is examined. The authors question the validity of first‐ and second‐order distribution fits to BAN channel gain. Wide sense stationarity tests have an upper bound at 70% probability for a maximum data length of 5 s. For data lengths greater than 5 s, the probability of stationarity rapidly diminishes. It is shown that the BAN channel is inherently non‐stationary, and independent of the subject, sensor location and activity.