scholarly journals Energy-Efficient Protocol of Link Scheduling in Cognitive Radio Body Area Networks for Medical and Healthcare Applications

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1355
Author(s):  
Thien Thi Thanh Le ◽  
Sangman Moh
Keyword(s):  
Energy Consumption ◽  
Cognitive Radio ◽  
Energy Efficient ◽  
Body Area Networks ◽  
Link Scheduling ◽  
Delivery Ratio ◽  
New Paradigm ◽  
Body Area ◽  
Healthcare Applications ◽  
Common Control

Wireless body area networks (WBANs) have become a new paradigm for electronic healthcare applications; for instance, they are used to efficiently monitor patients in real-time. In this paper, an energy-efficient link scheduling (ELS) protocol for cognitive radio body area networks (CRBANs) is proposed, which aims to minimize energy consumption in CRBANs, while achieving higher probabilities of successful transmissions with multiple CRBANs. The proposed ELS transmits packets in the common control channel to control transmission links amongst CRBANs to the gateway and vice versa. The transmissions of CRBANs to the gateway are scheduled at a specific time by the gateway in different data channels, according to the traffic priority of CRBANs. Packet delivery ratio, delay, and energy consumption are evaluated for multiple CRBANs via extensive simulation.

scholarly journals A Spectrum-Aware Priority-Based Link Scheduling Algorithm for Cognitive Radio Body Area Networks

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1640 ◽  
Author(s):  
Thien Thi Thanh Le ◽  
Sangman Moh
Keyword(s):  
Cognitive Radio ◽  
High Efficiency ◽  
Scheduling Algorithm ◽  
Healthcare Services ◽  
Body Area Networks ◽  
System Throughput ◽  
Link Scheduling ◽  
Delivery Ratio ◽  
Body Area ◽  
Support Tool

With the development of wireless communication technology, wireless body area networks (WBANs) have become a fundamental support tool in medical applications. In a real hospital scenario, however, the interference between wireless medical devices and WBANs may cause a high packet drop rate and high latency, which is harmful to patients using healthcare services. Nonetheless, cognitive radio is a promising technology for sharing the precious spectrum, which has high efficiency of the wireless resource. Thus, WBANs with cognitive radio capability are also exploited. We propose a spectrum-aware priority-based link scheduling (SPLS) algorithm for cognitive radio body area networks (CRBANs) in a real hospital scenario. In SPLS, three channels are used: DataCh, EDataCh, and CtrlCh for normal data, emergency data, and control messages, respectively. To avoid collision during data transmission, neighboring CRBANs send messages regarding the channel state with CtrlCh before the scheduling. The CRBANs can share DataCh in the time domain for improving the throughput. The SPLS algorithm allows a CRBAN to access idle channels on the licensed and unlicensed spectrum according to the CRBAN traffic. Our simulation results show that the proposed SPLS outperformed the conventional scheme in terms of packet delivery ratio, system throughput, latency, and energy efficiency.

scholarly journals Data Forwarding in Wireless Body Area Networks

2020 ◽  
Vol 2 (2) ◽  
pp. 80-87
Author(s):  
Dr. Joy Iong Zong Chen ◽  
Lu-Tsou Yeh
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Research Work ◽  
Energy Resource ◽  
Body Area Networks ◽  
Wireless Body Area Networks ◽  
Physiological Data ◽  
Data Forwarding ◽  
Body Area ◽  
Healthcare Applications

One of the most crucial application of Wireless Body Area Networks in healthcare applications is the process of monitoring human bodies and gather physiological data. Network performance degradation in the form of energy efficiency and latency are caused because of energy depletions which arises due to limited energy resource availability. The heterogeneity of body sensors will lead to variation in the rate of energy consumption. Based on this, a novel Data Forwarding Strategy is presented in this research work to enhance collaborative WBAN operations, improve network lifetime and restrict energy consumption of the sensors. In this paper, we have contributed towards reducing the size of data to be transmitted by compressed sensing and selection of relay sensor based on sampling frequency, energy levels and sensor importance. Using the proposed methodology, it is possible to improve both reliability and energy-efficiency of WBAN data transmission. moreover, it is also possible to adapt to the changing WBAN topologies when the proposed methodology is used, balancing energy efficiency and consumption.

Performance Analysis of Energy Efficient Opportunistic Routing Protocols in Wireless Sensor Network

2019 ◽  
Vol 09 ◽  
Author(s):  
Premkumar Chithaluru ◽  
Rajeev Tiwari ◽  
Kamal Kumar
Keyword(s):  
Energy Consumption ◽  
Routing Protocols ◽  
Energy Efficient ◽  
Data Communication ◽  
Opportunistic Routing ◽  
Link Quality ◽  
Delivery Ratio ◽  
Performance Parameters ◽  
Wireless Medium ◽  
Reduce Energy Consumption

Background: Energy Efficient wireless routing has been an area of research particularly to mitigate challenges surrounding performance in category of Wireless Networks. Objectives: The Opportunistic Routing (OR) technique was explored in recent times and exhibits benefits over many existing protocols and can significantly reduce energy consumption during data communication with very limited compromise on performance. Methods : Using broadcasting nature of the wireless medium, OR practices to discourse two foremost issues of variable link quality and unpredictable node agility in constrained WSNs. OR has a potential to reduce delay in order to increase the consistency of data delivery in network. Results : Various OR based routing protocols have shown varying performances. In this paper, a detailed conceptual and experimental analysis is carried out on different protocols that uses OR technique for providing more clear and definitive view on performance parameters like Message Success Rate, Packet Delivery Ratio and Energy Consumption.

scholarly journals A Survey of MAC Protocols for Cognitive Radio Body Area Networks

Sensors ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 9189-9209 ◽  
Author(s):  
Sabin Bhandari ◽  
Sangman Moh
Keyword(s):  
Cognitive Radio ◽  
Body Area Networks ◽  
Mac Protocols ◽  
Body Area
Sign in / Sign up

Export Citation Format

Share Document