scholarly journals Next-generation UWB antennas gadgets for human health care using SAR

Author(s):  
Aysha Maryam Ali ◽  
Mohammed A. Al Ghamdi ◽  
Muhammad Munwar Iqbal ◽  
Shehzad Khalid ◽  
Hamza Aldabbas1 ◽  
...  

AbstractThe body area network is now the most challenging and most popular network for study and research. Communication about the body has undoubtedly taken its place due to a wide variety of applications in industry, health care, and everyday life in wireless network technologies. The body area network requires such smart antennas that can provide the best benefits and reduce interference with the same channel. The discovery of this type of antenna design is at the initiative of this research. In this work, to get a good variety, the emphasis is on examining different techniques. The ultra-wide band is designed, simulated, and manufactured because the ultra-wide band offers better performance compared to narrowband antennas. To analyze the specific absorption rate, we designed a multilayer model of human head and hand in the high-frequency structure simulator. In the final stage, we simulated our antennas designed with the head and hand model to calculate the results of the specific absorption rate. The analysis of the specific absorption rate for the head and hand was calculated by placing the antennas on the designed model.

Author(s):  
Diana Bri ◽  
Jaime Lloret ◽  
Carlos Turro ◽  
Miguel Garcia

Specific Absorption Rate (SAR) is used to measure the body tissue exposure to electromagnetic fields. This chapter describes how SAR values can be estimated from a deployed Wireless Local Area Network (WLAN). We carried out this work using the Received Signal Strength (RSS) obtained from the access points. This parameter is easily obtained by an ordinary wireless network scanner. RSS variations are measured for a different number of people in the same room and without people. It will allow us to estimate how much energy is absorbed by a group of people and by a single person on average. Moreover, we have included the weight of the people in order to know the RSS lost by kilogram. These measurements were taken at the Higher Polytechnic School of Gandia, Universitat Politècnica de València, Spain, in two placements: the library and inside an anechoic camera.


Author(s):  
Saranya Vasanthamani ◽  
S. Shankar

The wireless body area network (WBAN) consists of wearable or implantable sensor nodes, which is a technology that enables pervasive observing and delivery of health-related information and services. The network capability of body devices and integration with wireless infrastructure can result in pervasive environment deliver the information about the patients to health care service providers. WBAN has a major part in e-health observing system. Due to sensitivity and critical of the data carried and handled by WBAN, reliability becomes a critical issues. WBAN loads a high degree of reliability as it openly affects the quality of patient observing. A main requirement is that the health care professionals receive the monitored data correctly. Thus reliability can be measured to achieve reliable network are fault tolerance, QoS, and security. As WBAN is a special type of WSN. The objective is to achieve a reliable network with minimum delay and maximum throughput while considering power consumption by reducing unnecessary communication.


Author(s):  
Leonardo Betancur Agudelo ◽  
Andres Navarro Cadavid

Nowadays, wireless Body Area Networks (wBAN) have gained more relevance, in particular in the areas of health care, emergencies, ranging, location, domotics and entertainment applications. Regulations and several wireless protocols and standards have appeared in recent years. Some of them, like Bluetooth, ZigBee, Ultra Wide Band (UWB), ECMA368, WiFi, GPRS and mobile applications offer different kinds of solutions for personal area communications. In this chapter, body area network channel modelling will be described; also, a brief description of the applications and state-of-the-art of regulation and standardization processes pertaining to these kinds of networks will be presented. For each topic, the chapter shows not only the main technical characteristics, but also the technical problems and challenges in recent and future research. Finally, the chapter provides an analysis of Body Area Networks, opinions about the future and possible scenarios in the short- and medium-term for the development of standards and applications and their impacts on our daily lives.


2016 ◽  
Vol 13 (2) ◽  
pp. 1475-1478
Author(s):  
Yu Pang ◽  
Di-Hui Li ◽  
Jin-Zhao Lin ◽  
Guo-Quan Li ◽  
Zhang-Yong Li ◽  
...  

Wireless Body Area Network (WBAN) is a collection of miniaturized sensing nodes and coordinator nodes. These sensing nodes are placed in, on and around the body for uninterrupted monitoring of physiological data for medical applications. The main application carrier of WBAN is the human body and due to human body movement and physiological changes, the WBAN traffic fluctuates greatly. This network traffic fluctuation requires good network adaptability. In addition to traffic fluctuations, energy consumption is another key problem with WBANs as sensing nodes are very small in size. This paper design a reliable protocol by extending the MAC protocol for reducing energy consumption, PAP algorithm to decide data transmission rate and JOAR algorithm to select the optimize path for the data transmission. The performance of the algorithm outperforms other state of art algorithms to shows its significance.


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