B&amp;#x0B2;IRS: A Technique to Reduce BAN-BAN Interferences in Wireless Sensor Networks

Grassi, Paolo Roberto; Rana, Vincenzo; Beretta, Ivan; Sciuto, D.

doi:10.1109/bsn.2012.30

Cited by 21 publications

(23 citation statements)

References 14 publications

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“…In most cases, 2L-MAC guarantees the latency of less than 125ms. We also compare the proposed protocol with B 2 IRS [6] and the beacon shifting scheme presented in the IEEE standard [1]. By employing TDMA-based polling, there is no intra-BAN interference in 2L-MAC.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Although the protocol seems to alleviate the interference among BANs, it is impractical to be used in mobile BANs because the resource allocation may conflict whenever the BAN topology changes. In B 2 IRS [6], a hub keeps its radio on to detect the existence of other BANs. Once it receives a beacon from a neighboring BAN, it reschedules its active period after the end of the neighboring BAN's active period.…”

mentioning

confidence: 99%

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2L-MAC: A MAC protocol with two-layer interference mitigation in wireless body area networks for medical applications

Chen

Shen

2014

2014 IEEE International Conference on Communications (ICC)

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Abstract-This paper investigates the issue of interference mitigation in wireless body area networks (BANs). Although several approaches have been proposed in BAN standard IEEE 802.15.6, they increase transmission latency or energy cost, and do not mitigate interference effectively. In order to avoid both intra-and inter-BAN interference, we present a MAC protocol with two-layer interference mitigation (2L-MAC) for BANs. Considering the QoS requirements of BANs, the proposed protocol not only avoids packet collisions but also reduces transmission delay and energy consumption in sensors. Moreover, channel switching is triggered whenever a BAN needs to acquire more bandwidth. Simulation results show that our protocol outperforms other protocols in terms of delivery rate, latency and energy saving.

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Section: Simulation Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

2L-MAC: A MAC protocol with two-layer interference mitigation in wireless body area networks for medical applications

Chen

Shen

2014

2014 IEEE International Conference on Communications (ICC)

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“…When coexisting WBANs use the same channel, transmissions can conflict since the active periods will overlap [10]. Additionally, the increase in the density of coexisting WBANs can lead to performance degradation.…”

Section: B Inter-wban Interferencementioning

confidence: 97%

“…Thus, collisions never occur between one WBAN's control frame and another WBAN's data frame [10]. Interference may occur between coexisting WBAN's data frames in the Contention Free Periods (CFP) [58].…”

Section: System Architecturementioning

confidence: 99%

“…In interference avoidance techniques, the coordinators of different WBANs attempt to assign orthogonal channels to each device in the network, thus avoiding the interference with the cost of lower system throughput. In comparison, interference avoidance schemes [10][11][12] can achieve a higher signal-to-interference+noise ratio (SINR) level compared to interference reduction schemes, but their throughput is usually lower. Moreover, in terms of computational complexity, interference avoidance techniques requires less complex receivers but extra cooperation between coordinators is inevitable.…”

Section: Introductionmentioning

confidence: 98%

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Enabling interference-aware and energy-efficient coexistence of multiple wireless body area networks with unknown dynamics

et al. 2016

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This paper presents an adaptive interference mitigation scheme for multiple coexisting wireless body area networks (WBANs) based on social interaction. The proposed scheme considers the mobility of nodes within each WBAN as well as the relative movement of WBANs with respect to each other. With respect to this mobile scenario traffic load, signal strength and the density of sensors in a WBAN are incorporated to optimize transmission time with synchronous and parallel transmissions to significantly reduce the radio interference and energy consumption of nodes. This approach leads to higher packet delivery ratio (PDR) and longer network lifetime even with nodes dynamically moving into and out of each others interference region. We make channel assignment more energyefficient and further reduce power consumption using transmit power control with simple channel prediction. Simulation results show that our approach maintains optimum spatial reuse with a range of channel dynamics within and between coexisting BANs. This protocol based on social interaction is shown to mitigate interference and minimize power consumption, and increase the spatial reuse and PDR of each WBAN, while increasing network lifetime. In the context of the adaptive interference mitigation scheme proposed, this paper also reviews the state of art in literature on mobility, MAC layer and power control solutions for WBANs, as well as providing a summary of interference mitigation schemes previously applied in WBANs.

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