Search results for "wireless coexistence"

showing 3 items of 3 documents

ErrorSense: Characterizing WiFi Error Patterns for Detecting ZigBee Interference

2014

Recent years have witnessed the increasing adoption of heterogeneous wireless networks working in unlicensed ISM bands, thus creating serious problems of spectrum overcrowding. Although ZigBee, Bluetooth and WiFi networks have been natively designed for working in presence of interference, it has been observed that several performance impairments may occur because of heterogeneous sensitivity to detect or react to the presence of other technologies. In this paper we focus on the WiFi capability to detect interfering ZigBee links. Despite of the narrowband transmissions performed by ZigBee, in emerging scenarios ZigBee interference can have a significant impact on WiFi performance. Therefore…

Computer scienceWireless networkbusiness.industrySettore ING-INF/03 - TelecomunicazioniComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSwlan 802.11 802.15.4 frame error detection wireless coexistenceInterference (wave propagation)law.inventionBluetoothNarrowbandlawSensitivity (control systems)businessHeterogeneous networkComputer networkNeuRFon
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Cross-Technology WiFi/ZigBee Communications: Dealing With Channel Insertions and Deletions

2016

In this letter, we show how cross-technology interference can be exploited to set up a low-rate bidirectional communication channel between heterogeneous WiFi and ZigBee networks. Because of the environment noise and receivers' implementation, the cross-technology channel can be severely affected by insertions and deletions of symbols, whose effects need to be taken into account by the coding scheme and communication protocol.

Settore ING-INF/03 - TelecomunicazioniComputer sciencebusiness.industryWiFichannelinterferencewireless coexistenceComputer Science Applications1707 Computer Vision and Pattern Recognition020206 networking & telecommunications020302 automobile design & engineeringinterference; wireless coexistence; WLAN; Modeling and Simulation; Computer Science Applications1707 Computer Vision and Pattern Recognition; Electrical and Electronic Engineering02 engineering and technologyComputer Science ApplicationsWLANZigBee0203 mechanical engineeringModeling and Simulation0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringbusinessCommunications protocolComputer networkCommunication channelIEEE Communications Letters
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Learning from Errors: Detecting ZigBee Interference in WiFi Networks

2014

In this work we show how to detect ZigBee interference on commodity WiFi cards by monitoring the reception errors, such as synchronization errors, invalid header formats, too long frames, etc., caused by ZigBee transmissions. Indeed, in presence of non-WiFi modulated signals, the occurrence of these types of errors follows statistics that can be easily recognized. Moreover, the duration of the error bursts depends on the transmission interval of the interference source, while the error spacing depends on the receiver implementation. On the basis of these considerations, we propose the adoption of hidden Markov chains for characterizing the behavior of WiFi receivers in presence of controlle…

business.industryComputer scienceSettore ING-INF/03 - TelecomunicazioniComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSReal-time computingwlan 802.11 802.15.4 frame error detection wireless coexistenceInterval (mathematics)Interference (wave propagation)SynchronizationLearning from errorsTransmission (telecommunications)HeaderbusinessHidden Markov modelComputer networkNeuRFon
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