OFDM
Relay
Cognitive Radio
Multiple Antennas
Resource Allocation
Full Duplex
Spectrum Sensing
Synchronization
Spectrum Sharing
Channel Estimation
Interference Cancellation
Stochastic Geometry
Energy Harvesting
Feedback
Bi-directional
Heterogeneous Networks
Equalization
HetNet
relay networks
FBMC
Ultra Low Power
SC-FDMA
TVWS
Duplex
Reliability
CDMA
MIMO
interference
channel capacity
in-band full-duplex system
interference suppression
5G
C-V2V
reinforcement learning
RSRP weighting
non-orthogonal multiple access (NOMA)
health care
5G mobile communication
indoor positioning
Vehicle-to-vehicle communication
estimated position overlapping
Resource sharing
Power allocation
multi-access edge computing
control overhead
hybrid
Rat-dependent positioning
NR positioning
smart factory
UFMC
Handoff
Femtocell
QAM
CoMP
power uncertainty
- Computation offloading
amplify and forward communication
Zigbee
body area networks
resource block management
frame structure
WVAN
inter user interference
GFDM
mode selection
antenna arrays
partial overlap
LTE-based V2V
resource selection
maximum likelihood method
Communication range
Number of training blocks
Vehicular communication
Uplink SCMA system
Dynamic TDD
QR Factorization
Metaheuristics
FS-NOMA
cross-link interference
user fairness
Multi-user Receiver
Mode 3
V2X
P-NOMA
dynamic HetNet
spectrum partitioning
DQN
D-TDD
CLI
massive connectivity
and 5G networks.
OTDOA
estimated position updating
distributed mode
non-orthogonal multiple access
Spatial capacity
LTE-TDD
—Device-to-device (D2D)
Location-based
overloading
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Sungwoo Weon, Seokwon Lee, Sooyong Choi, Jang-Won Lee, and Daesik Hong, "Impacts of Sub Hub on Connectivity of IEEE 802.15.4 in Healthcare Environments", IEEE WCN 2015
[IEEE WCNC]
조회 36510
Status : | Presented |
---|---|
Date : | 2015-03 |
Title : | Impacts of Sub Hub on Connectivity of IEEE 802.15.4 in Healthcare Environments |
Authors : | Sungwoo Weon, Seokwon Lee, Sooyong Choi, Jang-Won Lee, and Daesik Hong |
Conference : | WCNC 2015 |
Abstract : | In this paper, we consider IEEE 802.15.4 based wireless body area sensor networks (WBASN) in the healthcare environment. Connectivity is a critical constraint in the healthcare environment. In particular, disconnection from a sensor hub is a significant problem that leads to sensor node orphaning. To address this, we propose to use a sub hub designed to enhance WBASN connectivity. The sub hub understudies the original (main) sensor hub and acts to resolve the problems associated with disconnection. We also propose two protocols for use in operating the sub hub. Each protocol prevents the sensor nodes from being orphaned, and forwards data from the sensor nodes to the original sensor hub. In addition, we evaluate the connectivity performance of our proposed protocols and analyze the disconnection tolerance and the number of packet drops. To demonstrate the performances of the proposed protocols, we developed an IEEE 802.15.4 compliant system level simulator with an OPNET Modeler. Simulation results show the individual merits and the demerits of each of the protocols in terms of connectivity. In addition, the energy efficiency of our proposed protocol is evaluated. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=7127613 |
Download : | http://mirinae.yonsei.ac.kr/?module=file...le_srl=343 |
Weon, Sungwoo; Lee, Seokwon; Choi, Sooyong; Lee, Jang-Won; Hong, Daesik, "Impacts of sub hub on connectivity of IEEE 802.15.4 in healthcare environments," Wireless Communications and Networking Conference (WCNC), 2015 IEEE , vol., no., pp.1042,1047, 9-12 March 2015
doi: 10.1109/WCNC.2015.7127613
keywords: {Handover;IEEE 802.15 Standards;Measurement;Medical services;Power demand;Protocols},
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7127613&isnumber=7127309
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