WiCop: Engineering WiFi Temporal White-Spaces for Safe Operations of Wireless Body Area Networks in Medical Applications

Wang, Yufei; Wang, Qixin; Zeng, Zheng; Zheng, Guanbo; Zheng, Rong

doi:10.1109/rtss.2011.23

Cited by 45 publications

(24 citation statements)

References 24 publications

(23 reference statements)

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“…For example, some solutions modeled the white spaces in WiFi networks and exploited them for WBAN data transmission [50]. Others, send fake WiFi data packets with preamble duration sufficient for WBAN nodes transmission [106] or by sending fake RTS packets to reserve the medium and avoid nearby WiFi networks from interfering [47]. The latter assumed that the interfering network can hear WBAN transmission which is not realistic, especially with the low transmission power level used by WBANs.…”

Section: Standards Adaptationmentioning

confidence: 99%

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A survey of wireless technologies coexistence in WBAN: analysis and open research issues

et al. 2014

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Wireless Body Area Network (WBAN) is the most convenient, cost-effective, accurate, and non-invasive technology for e-health monitoring. The performance of WBAN may be disturbed when coexisting with other wireless networks. Accordingly, this paper provides a comprehensive study and in-depth analysis of coexistence issues and interference mitigation solutions in WBAN technologies. A thorough survey of state-of-the art research in WBAN coexistence issues is conducted. The survey classified, discussed, and compared the studies according to the parameters used to analyze the coexistence problem. Solutions suggested by the studies are then classified according to the followed techniques and concomitant shortcomings are identified. Moreover, the coexistence problem in WBAN technologies is mathematically analyzed and formulas are derived for the probability of successful channel access for different wireless technologies with the coexistence of an interfering network. Finally, extensive simulations are conducted using OPNET with several real-life scenarios to evaluate the impact of coexistence interference on different WBAN technologies. In particular, three main WBAN wireless technologies are considered: IEEE 802.15.6, IEEE 802.15.4, and low-power WiFi. The mathematical analysis and the simulation results are discussed and the impact of interfering network on the different wireless technologies is compared and analyzed. The results show that an interfering network (e.g., standard WiFi) has an impact on the performance of WBAN and may disrupt its operation. In addition, using low-power WiFi for WBANs is investigated and proved to be a feasible option compared to other wireless technologies.

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Section: Standards Adaptationmentioning

confidence: 99%

“…The standard adaptation techniques seem to be flexible and support contention based MAC protocols, thus many solutions appear to be promising such as those presented in: [47,50,62,106]. Beside studying the coexistence problem between WBAN and WiFi networks, Hou et al [47] proposed a solution to solve this issue.…”

Section: Standards Adaptationmentioning

confidence: 99%

A survey of wireless technologies coexistence in WBAN: analysis and open research issues

et al. 2014

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“…Besides that, by exploring CCA mechanism, [74] develops a management framework, WiCop, which can effectively control the temporal white spaces between Wi-Fi transmissions. Specifically, the WiCop employs a fake Wi-Fi preambleheader broadcast into the physical layer to mute other WiFi interferers for the duration of wireless body area networks (WBAN) devices' active interval.…”

Section: Spectral Interference Avoidancementioning

confidence: 99%

A Survey on Spectrum Utilization in Wireless Sensor Networks

2015

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In recent years, the industrial, scientific, and medical (ISM) bands have been intensively shared with unlicensed wireless communications applications such as wireless sensor networks (WSNs). With flourishing popularity of sensor devices and increasing installation of wireless sensor nodes, the cross technology interference (CTI) has become a considerable realworld problem. Because of CTI, wireless devices suffer significant communication dilemma. Moreover, ISM band, as the main communication medium of WSN, should be reasonably utilized in an efficient and effective manner. Extensive approaches have been proposed to explore spectrum utilization in WSN. However, there is no such one, which systematically organizes these works. In this paper, we present a comprehensive survey on spectrum utilization in WSNs. To achieve this goal, We first illustrate the background of WSN and spectrum utilization. Our concern on CTI is then noted. Later we demonstrate the importance of efficient spectrum utilization. Eventually, through classification and summary of recent related works, we provide an essential structure of research in titled field and detailed intellectual merits of published works. Our survey covers more than 80 studies in the scope of spectrum utilization in WSN.

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“…A wireless communication link from the base station to a remote entity is called a downlink; and a wireless communication link from a remote entity to the base station is called an uplink. We assume that there is no direct wireless communication links between any two remote entities (such practice is desirable for wireless applications with high dependability requirements [17], [18]). …”

Section: B System and Fault Modelmentioning

confidence: 99%

Guaranteeing Proper-Temporal-Embedding safety rules in wireless CPS: A hybrid formal modeling approach

Tan

Wang

et al. 2013

2013 43rd Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)

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Abstract-Cyber-Physical Systems (CPS) integrate discretetime computing and continuous-time physical-world entities, which are often wirelessly interlinked. The use of wireless safety critical CPS (control, healthcare etc.) requires safety guarantees despite communication faults. This paper focuses on one important set of such safety rules: Proper-Temporal-Embedding (PTE). Our solution introduces hybrid automata to formally describe and analyze CPS design patterns. We propose a novel lease based design pattern, along with closed-form configuration constraints, to guarantee PTE safety rules under arbitrary wireless communication faults. We propose a formal methodology to transform the design pattern hybrid automata into specific wireless CPS designs. This methodology can effectively isolate physical world parameters from affecting the PTE safety of the resultant specific designs. We conduct a case study on laser tracheotomy wireless CPS to show that the resulting system is safe and can withstand communication disruptions.

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WiCop: Engineering WiFi Temporal White-Spaces for Safe Operations of Wireless Body Area Networks in Medical Applications

Abstract: Abstract-ZigBee

Cited by 45 publications

References 24 publications

A survey of wireless technologies coexistence in WBAN: analysis and open research issues

A survey of wireless technologies coexistence in WBAN: analysis and open research issues

A Survey on Spectrum Utilization in Wireless Sensor Networks

Guaranteeing Proper-Temporal-Embedding safety rules in wireless CPS: A hybrid formal modeling approach

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