Results 151 to 160 of about 2,949 (169)

Throughput evaluation for a bluetooth piconet with link adaptation

14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003., 2004
In this paper a link adaptation (LA) strategy to be implemented in a Bluetooth piconet is investigated: the performance level that can be achieved is derived and the comparison with the case of no LA is performed. Suitable definitions of the performance figures are given and starting from the knowledge of the physical level performance obtained via ...
G Pasolini, M De Troia, R Verdone
openaire   +3 more sources

Load and QoS-adaptive scheduling in Bluetooth piconets

37th Annual Hawaii International Conference on System Sciences, 2004. Proceedings of the, 2004
A novel polling scheme for intra-piconet scheduling in Bluetooth piconets, dubbed adaptive cycle-limited scheduling, is described. The scheme allocates the time to each slave according to its current traffic, whilst trying to limit the maximum piconet cycle time. This approach makes scheduling of mixed asynchronous and CBR traffic much easier than with
V.B. Misic, E.W.S. Ko, J. Misic
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A practical approach to multicasting in Bluetooth piconets

IEEE Wireless Communications and Networking Conference, 2006. WCNC 2006., 2006
This work studies a special multicasting problem in Bluetooth networks supporting point-to-point connections and piconets. The reason for the topic choice relies in the fact that Bluetooth, a de-facto proximity communication technique widely available in smart phones today, supports piconets, but sending content to more than 7 nodes is cumbersome.
L. Farkas, B. Bakos, P. Spanyi
openaire   +1 more source

Mitigation of Co-Channel Interference in Bluetooth Piconets

IEEE Transactions on Wireless Communications, 2012
In this letter, we consider the mitigation of co-channel interference in Bluetooth piconets. Prior to sending packets, the proposed scheme checks whether the next channel for the frequency hopping (FH) is in use by other signals or not. Then, it periodically detects busy channels subject to WLAN interference based on the packet error rate and ...
Seung-Hwan Lee, Hyung-Sin Kim, Yong-Hwan Lee   +2 more
openaire   +1 more source

WIRELESS EARPHONE FOR USE IN BLUETOOTH PICONETS

The Journal of the Acoustical Society of America, 2013
An audio device includes a Bluetooth receiver, a Bluetooth transmitter, a speaker and a housing. The Bluetooth receiver is capable of wirelessly receiving signals in at least two audio channels. The Bluetooth transmitter is capable of wirelessly retransmitting at least a first one of the two audio channels.
openaire   +1 more source

Study of Piconet Auto-Configuration for WPAN

Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2005
If the PNC is shutting down or wants to leave the WPAN, it uses the handover process to give control to another device in the piconet. However when the PNC is selected, only the device capability information is checked in the WPAN standard specification and no detail criteria is described.
openaire   +1 more source

A new efficient scheduling algorithm in bluetooth piconet

IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005
Bluetooth is a system for providing short-range, small size, low-power and low-cost connectivity operating in the ISM (industrial scientific medicine) band at 2.4 GHz (http://www.bluetooth.com). Bluetooth has been seen as a promising candidate for ad-hoc wireless networking and wireless personal area networks (WPAN).
null Bong-Soo Lee, null Hyo-Won Kim, null Tae-Uk Yang, null Yong-Seok Park, null Byeong-Ho Ahn, null Joung-Chul Ahn   +5 more
openaire   +1 more source

Analytical Investigation on the Coexistence of Bluetooth Piconets

IEEE Communications Letters, 2004
In this letter, we address the issue of Bluetooth (BT) piconets coexistence by analytically deriving a lower bound on the aggregated throughput offered by BT piconets deployed in the same region and by evaluating the optimal number of piconets as a function of the region dimension.
openaire   +4 more sources

Innovation on Bluetooth intra-piconet scheduling algorithms

2014
Intra-piconet scheduling is one of the factors that affect performance of Bluetooth networks. In this thesis, we present two new intra-piconet scheduling algorithms that offer better performance than the existing ones. In case Bluetooth is used to carry voice traffic using the SCO packet types proposed in the official standard, the performance of ...
openaire   +2 more sources

Secure Bluetooth Piconet Using Non-anonymous Group Key

2002
In accordance with the changes in the wireless communication environment, there has been a great need to satisfy the demand for diverse modes of information exchange. However, Bluetooth has weaknesses in its security features when its in -house security services are applied to networks.
Dae-Hee Seo, Im-Yeong Lee, Dong-ik Oh, Doo-soon Park   +3 more
openaire   +1 more source