Results 21 to 30 of about 170 (142)

A Reconfigurable Mesh-Ring Topology for Bluetooth Sensor Networks

open access: yesEnergies, 2018
In this paper, a Reconfigurable Mesh-Ring (RMR) algorithm is proposed for Bluetooth sensor networks. The algorithm is designed in three stages to determine the optimal configuration of the mesh-ring network.
Ben-Yi Wang, Chih-Min Yu, Yao-Huang Kao
doaj   +1 more source

Wireless TDMA‐Based Body Area Network Platform Gathering Multibiosignals Synchronized with Patient’s Heartbeat

open access: yesWireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018
In the application of a body area network in medical healthcare, the process of receiving, archiving, and analyzing multibiosignals simultaneously from different devices for each body is very important. For example, to diagnose sleep apnea symptoms, a patient must sleep with dozens of devices, including electroencephalography (EEG), electrocardiogram ...
Tae Min Hwang   +3 more
wiley   +1 more source

Topology Configuration and Multihop Routing Protocol for Bluetooth Low Energy Networks

open access: yesIEEE Access, 2017
This paper proposes a new cluster-based on-demand routing protocol to support multihop communication in Bluetooth low energy ad hoc networks. The proposed scheme includes the topology configuration procedure, topology recovery scheme, and on-demand ...
Changsu Jung   +4 more
doaj   +1 more source

Maximum Power Plus RSSI Based Routing Protocol for Bluetooth Low Energy Ad Hoc Networks

open access: yesWireless Communications and Mobile Computing, Volume 2017, Issue 1, 2017., 2017
This paper proposes a novel energy‐conserving multihop routing protocol to maximize network lifetime and consume the battery in a distributed manner during route discovery in energy‐constrained Bluetooth Low Energy ad hoc networks. Furthermore, a flooding avoidance approach is adopted by the proposed scheme to minimize the number of route request ...
Changsu Jung, Kijun Han, Haiyu Huang
wiley   +1 more source

BGN: A Novel Scatternet Formation Algorithm for Bluetooth‐Based Sensor Networks

open access: yesMobile Information Systems, Volume 7, Issue 2, Page 93-106, 2011., 2011
To address the unreliability and inefficiency of the existing algorithms for Bluetooth scatternet formation, this paper proposes a new efficient algorithm, Bluetooth Growing Network (BGN) algorithm, which constructs Bluetooth scatternet by adding reserve links among its branch nodes so that the resulting scatternet can maintain a high degree of ...
Yongjun Li   +3 more
wiley   +1 more source

Improving Sensing Accuracy in Cognitive PANs through Modulation of Sensing Probability

open access: yesMobile Information Systems, Volume 5, Issue 2, Page 177-193, 2009., 2009
Cognitive radio technology necessitates accurate and timely sensing of primary users′ activity on the chosen set of channels. The simplest selection procedure is a simple random choice of channels to be sensed, but the impact of sensing errors with respect to primary user activity or inactivity differs considerably. In order to improve sensing accuracy
Vojislav B. Mišić, Jelena Mišić
wiley   +1 more source

Enabling Cognitive Load‐Aware AR with Rateless Coding on a Wearable Network

open access: yesAdvances in Multimedia, Volume 2008, Issue 1, 2008., 2008
Augmented reality (AR) on a head‐mounted display is conveniently supported by a wearable wireless network. If, in addition, the AR display is moderated to take account of the cognitive load of the wearer, then additional biosensors form part of the network. In this paper, the impact of these additional traffic sources is assessed.
R. Razavi   +3 more
wiley   +1 more source

Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link

open access: yesAdvances in Multimedia, Volume 2007, Issue 1, 2007., 2007
Bluetooth′s default automatic repeat request (ARQ) scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross‐layer adaptation to picture‐type packet importance, ARQ is not ...
R. Razavi   +3 more
wiley   +1 more source

Performance analysis of Bluetooth piconets with finite baseband buffers [PDF]

open access: yesWireless Communications and Mobile Computing, 2005
AbstractWe analyze the performance of Bluetooth piconets under bursty traffic and finite buffer sizes. We model the joint probability distributions of uplink and downlink queues using theM[x]/G/1/Kmodel with vacations and derive buffer blocking probabilities at slaves and at the master. The results, which are confirmed through simulations, provide some
Jelena V. Misic, Vojislav B. Misic
openaire   +1 more source

Bluetooth: Opening a Blue Sky for Healthcare

open access: yesMobile Information Systems, Volume 2, Issue 2-3, Page 151-167, 2006., 2006
Over the last few years, there has been a blossoming of developing mobile healthcare programs. Bluetooth technology, which has the advantages of being low‐power and inexpensive, whilst being able to transfer moderate amounts of data over a versatile, robust and secure radio link, has been widely applied in mobile healthcare as a replacement for cables.
X. H. Wang, M. Iqbal
wiley   +1 more source

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