Proceedings ArticleDOI
Enabling coexistence of heterogeneous wireless systems: case for ZigBee and WiFi
Xinyu Zhang,Kang G. Shin +1 more
- pp 6
TLDR
An analytical framework is established that relates its key design parameters to performance and cost and demonstrates CBT's significant throughput improvement over the legacy ZigBee protocol, with negligible performance loss to WiFi.Abstract:
The ISM spectrum is becoming increasingly populated by emerging wireless networks. Spectrum sharing among the same network of devices can be arbitrated by MAC protocols (e.g., CSMA), but the coexistence between heterogeneous networks remains a challenge. The disparate power levels, asynchronous time slots, and incompatible PHY layers of heterogeneous networks severely degrade the effectiveness of traditional MAC. In this paper, we propose a new mechanism, called the Cooperative Busy Tone (CBT), that enables the reliable coexistence between two such networks, ZigBee and WiFi. CBT allows a separate ZigBee node to schedule a busy tone concurrently with the desired transmission, thereby improving the visibility of ZigBee devices to WiFi. Its core components include a frequency flip scheme that prevents the mutual interference between cooperative ZigBee nodes, and a busy tone scheduler that minimizes the interference to WiFi, for both CSMA and TDMA packets. To optimize CBT, we establish an analytical framework that relates its key design parameters to performance and cost. Both the analytical and detailed simulation results demonstrate CBT's significant throughput improvement over the legacy ZigBee protocol, with negligible performance loss to WiFi. The results are validated further by implementing CBT on sensor motes and software radios.read more
Citations
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Journal ArticleDOI
Wi-Fi Fingerprint-Based Indoor Positioning: Recent Advances and Comparisons
Suining He,S.-H. Gary Chan +1 more
TL;DR: This survey overviews recent advances on two major areas of Wi-Fi fingerprint localization: advanced localization techniques and efficient system deployment.
Proceedings ArticleDOI
Performance Evaluation of LTE and Wi-Fi Coexistence in Unlicensed Bands
Andre Mendes Cavalcante,Erika Portela Lopes de Almeida,Robson D. Vieira,Fabiano Chaves,Rafael C. D. Paiva,Fuad Mousse Abinader,Sayantan Choudhury,Esa Tuomaala,Klaus Doppler +8 more
TL;DR: A simulator-based system- level analysis in order to assess the network performance in an office scenario shows that LTE system performance is slightly affected by coexistence whereas Wi-Fi is significantly impacted by LTE transmissions.
Journal ArticleDOI
A Critical Analysis of Research Potential, Challenges, and Future Directives in Industrial Wireless Sensor Networks
TL;DR: A thorough review of the existing standards and industrial protocols is presented and a critical evaluation of potential of these standards and protocols are given along with a detailed discussion on available hardware platforms, specific industrial energy harvesting techniques and their capabilities.
Proceedings ArticleDOI
FreeBee: Cross-technology Communication via Free Side-channel
Song Min Kim,Tian He +1 more
TL;DR: FreeBee is presented, which enables direct unicast as well as cross-technology/channel broadcast among three popular wireless technologies: WiFi, ZigBee, and Bluetooth and a new \emph{interval multiplexing} technique is proposed to enable concurrent broadcasts from multiple senders or boost the transmission rate of a single sender.
Proceedings ArticleDOI
Demo: WEBee: Physical-Layer Cross-Technology Communication via Emulation
TL;DR: The comprehensive evaluation reveals that WEBee can achieve a more than 99% reliable parallel CTC between WiFi and ZigBee with 126 Kbps in noisy environments, a throughput about 16,000x faster than current state-of-the-art CTCs.
References
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Book
Discrete Stochastic Processes
TL;DR: This chapter discusses Markov Chains with Countably Infinite State Spaces, Random Walks and Martingales, and Discrete State Markov Processes, all of which apply to the Renewal Processes.
Journal ArticleDOI
New insights from a fixed-point analysis of single cell IEEE 802.11 WLANs
TL;DR: A fixed-point formalization of the well-known analysis of Bianchi is studied, and it is shown how the saturated network analysis can be used to obtain TCP transfer throughputs in some cases.
Proceedings ArticleDOI
Understanding and mitigating the impact of RF interference on 802.11 networks
TL;DR: A channel hopping design is prototype using PRISM NICs, and it is found that it can sustain throughput at levels of RF interference well above that needed to disrupt unmodified links, and at a reasonable cost in terms of switching overheads.
Proceedings ArticleDOI
Beyond co-existence: Exploiting WiFi white space for Zigbee performance assurance
TL;DR: A novel approach that enables ZigBee links to achieve assured performance in the presence of heavy WiFi interference is proposed and a new ZigBee frame control protocol called WISE is developed, which can achieve desired trade-offs between link throughput and delivery ratio.
Journal Article
Universal Software Radio Peripheral
TL;DR: The necessity of using SDR technology was presented, the USRP hardware and GNU Radio software architecture were introduced, and potential applications of USRP were summarized.