Realization of Public M-Health Service in License-Free Spectrum

Torabi, Narjes; Leung, Victor C. M.

doi:10.1109/titb.2012.2227117

Cited by 18 publications

(6 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although this scheme protects the beacon from WLAN interference, interference from IEEE 802.15.1 or other IEEE 802.15.4 WPANs may still exist. However, as the WPANs are generally operated at a lower transmission power, interference with these systems is negligible [ 25 ]. Channel selection schemes are not within the scope of this paper.…”

Section: Priority-based Adaptive Mac (Pa-mac)mentioning

confidence: 99%

A Priority-Based Adaptive MAC Protocol for Wireless Body Area Networks

Bhandari

Moh

2016

Sensors

View full text Add to dashboard Cite

In wireless body area networks (WBANs), various sensors and actuators are placed on/inside the human body and connected wirelessly. WBANs have specific requirements for healthcare and medical applications, hence, standard protocols like the IEEE 802.15.4 cannot fulfill all the requirements. Consequently, many medium access control (MAC) protocols, mostly derived from the IEEE 802.15.4 superframe structure, have been studied. Nevertheless, they do not support a differentiated quality of service (QoS) for the various forms of traffic coexisting in a WBAN. In particular, a QoS-aware MAC protocol is essential for WBANs operating in the unlicensed Industrial, Scientific, and Medical (ISM) bands, because different wireless services like Bluetooth, WiFi, and Zigbee may coexist there and cause severe interference. In this paper, we propose a priority-based adaptive MAC (PA-MAC) protocol for WBANs in unlicensed bands, which allocates time slots dynamically, based on the traffic priority. Further, multiple channels are effectively utilized to reduce access delays in a WBAN, in the presence of coexisting systems. Our performance evaluation results show that the proposed PA-MAC outperforms the IEEE 802.15.4 MAC and the conventional priority-based MAC in terms of the average transmission time, throughput, energy consumption, and data collision ratio.

show abstract

Section: Priority-based Adaptive Mac (Pa-mac)mentioning

confidence: 99%

A Priority-Based Adaptive MAC Protocol for Wireless Body Area Networks

Bhandari

Moh

2016

Sensors

View full text Add to dashboard Cite

show abstract

“…For the cross-layer scheme in [31], the MAC proposal of CBAS [30], is modified to achieve a dynamic scheduling scheme in order to improve the Packet Delivery Ratio (PDR) observed in statically scheduled WBANs. The exploitation of flat fading and symmetric characteristics of the channel permits to derive the power needed to perform a successful transmission to the sink node.…”

Section: Table 4 Delay Experienced By Two Nodes In Cicada Testing Netmentioning

confidence: 99%

“…A good example is the approach presented in [29], which proposes a cross-layer strategy aware of communication interferences and changes in network topology in a joint manner to fulfill the data reliability requirements of the WBAN. The strategy is conceived as an improvement of a previous one developed by the authors called CBAS (centralized body area network access scheme) [30]. The aforementioned improvement consists of the incorporation of a network layer strategy to enhance the packet delivery ratio (PDR), exploiting information gathered at the link layer about the quality of the links in the WBAN in such a way that the most reliable links can be identified in a distributed manner, adding an approach of an adaptive duty-cycle in the nodes to increase energy savings.…”

Section: Table 4 Delay Experienced By Two Nodes In Cicada Testing Netmentioning

confidence: 99%

Cross-layer designs for energy efficient wireless body area networks: a review

Cañizo

Gómez²,

Hernandez

et al. 2016

Rev. Fac. Ing. Antioquia

View full text Add to dashboard Cite

An efficient cross-layer approach should provide schemes to avoid all the aforementioned sources of energy waste by promoting novel trade-offs between layers to enhance the wireless communication process and simultaneously extend the network lifetime. Taxonomy: cross-layer approaches for WBANsIn this section, the different studies are classified by the communication layers involved in each cross-layer strategy. This survey details how each approach works (as described by the authors in the original paper), its main problems and shortcomings that represent open issues for future research, and a critical analysis of the performance results as originally presented by the authors.

show abstract

“…QoS is another issue in WBANs communication that must be satisfied where best effort service is not acceptable given the sensitivity of their applications and the nature of the transported data [20,56,94]. For example, when WBAN is used to monitor a patient's health condition, information have to be delivered instantly.…”

Section: Wbans Design Challengesmentioning

confidence: 99%

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

et al. 2014

View full text Add to dashboard Cite

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.

show abstract

Realization of Public M-Health Service in License-Free Spectrum

Cited by 18 publications

References 26 publications

A Priority-Based Adaptive MAC Protocol for Wireless Body Area Networks

A Priority-Based Adaptive MAC Protocol for Wireless Body Area Networks

Cross-layer designs for energy efficient wireless body area networks: a review

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

Contact Info

Product

Resources

About