Bluetooth adaptive frequency hopping and scheduling

Golmie, Nada; Rébala, O.; Chevrollier, Nicolas

doi:10.1109/milcom.2003.1290352

Cited by 48 publications

(31 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To achieve this exclusion of channels with interference, Bluetooth devices periodically estimate the channel usage and accordingly adapt their frequency hopping pattern. This technique is referred to as Adaptive Frequency Hopping (AFH) [13]. Figure 4 illustrates the operation of AFH mechanism in the presence of WiFi traffic on two different channels A and B.…”

Section: Robust Secret Key Extraction Methodsmentioning

confidence: 99%

Secret key extraction using Bluetooth wireless signal strength measurements

Premnath

Gowda

Kasera

et al. 2014

2014 Eleventh Annual IEEE International Conference on Sensing, Communication, and Networking (SECON)

View full text Add to dashboard Cite

Abstract-Bluetooth has found widespread adoption in phones, wireless headsets, stethoscopes, glucose monitors, and oximeters for communication of, at times, very critical information. However, the link keys and encryption keys in Bluetooth are ultimately generated from a short 4 digit PIN, which can be cracked off-line. We develop an alternative for secure communication between Bluetooth devices using the symmetric wireless channel characteristics. Existing approaches to secret key extraction primarily use measurements from a fixed, single channel (e.g., a 20 MHz WiFi channel); however in the presence of heavy WiFi traffic, the packet exchange rate in such approaches can reduce as much as 200×. We build and evaluate a new method, which is robust to heavy WiFi traffic, using a very wide bandwidth (B 20 MHz) in conjunction with random frequency hopping. We implement our secret key extraction on two Google Nexus One smartphones and conduct numerous experiments in indoor-hallway and outdoor settings. Using extensive real-world measurements, we show that outdoor settings are best suited for secret key extraction using Bluetooth. We also show that even in the absence of heavy WiFi traffic, the performance of secret key generation using Bluetooth is comparable to that of WiFi while using much lower transmit power.

show abstract

Section: Robust Secret Key Extraction Methodsmentioning

confidence: 99%

Secret key extraction using Bluetooth wireless signal strength measurements

Premnath

Gowda

Kasera

et al. 2014

2014 Eleventh Annual IEEE International Conference on Sensing, Communication, and Networking (SECON)

View full text Add to dashboard Cite

show abstract

“…Moreover, those metrices do not enable the analyses of interference coming from other systems. In [7], an original methodology and key metrices necessary for determination of interaction between Bluetooth scatternets and IEEE 802.11b network devices have been presented.…”

Section: Modeling the Ism Environmentmentioning

confidence: 99%

A new role-switching mechanism optimizing the coexistence of bluetooth and Wi-Fi networks

2010

View full text Add to dashboard Cite

Unlicensed ISM band is used by various wireless technologies. Therefore, issues related to ensuring the required efficiency and quality of operation of coexisting networks become essential. The paper addresses the problem of mutual interferences between IEEE 802.11b transmitters (commercially named Wi-Fi) and Bluetooth (BT) devices. An optimization approach to modeling the topology of BT scatternets is introduced, resulting in more efficient utilization of ISM environment consisting of BT and Wi-Fi networks. To achieve it, the Integer Linear Programming approach has been proposed. Example results presented in the paper illustrate significant benefits of using the proposed modeling strategy.

show abstract

“…IBLUEREA algorithm contains the following operations cycle, preceded by the use of a mechanism generating scatternet of a minimal number of piconets: 4 1. BT master devices control the usage of ISM band 5 and have information on the topology within a given scatternet, 2.…”

Section: Nature Of Ibluerea Algorithmmentioning

confidence: 99%

Interference aware Bluetooth scatternet (re)configuration algorithm IBLUEREA

Klajbor

Woźniak

2008

Telecommun Syst

View full text Add to dashboard Cite

The paper presents a new algorithm IBLUEREA, which enables reconfiguration of Bluetooth (BT) scatternet to reduce mutual interferences between BT and Wi-Fi (IEEE 802.11b) networks operating on the same area. IBLUEREA makes use of proposed procedure for modeling ISM environment around a given BT scatternet. The mechanism is based on estimation of the probabilities of successful (unsuccessful) frame transmissions. This determination is useful to take a decision concerning co-existence of technologies which operate in the same ISM band (here Bluetooth and IEEE 802.11b).

show abstract

Bluetooth adaptive frequency hopping and scheduling

Cited by 48 publications

References 2 publications

Secret key extraction using Bluetooth wireless signal strength measurements

Secret key extraction using Bluetooth wireless signal strength measurements

A new role-switching mechanism optimizing the coexistence of bluetooth and Wi-Fi networks

Interference aware Bluetooth scatternet (re)configuration algorithm IBLUEREA

Contact Info

Product

Resources

About