Results 41 to 50 of about 2,949 (169)

Achievable rate regions for Bluetooth piconets in fading channels [PDF]

open access: yes2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514), 2005
We investigate the stability of a Bluetooth piconet operating in fading (Rice, Rayleigh or Nakagami) channels. By taking into account many protocol details, such as modulation scheme and packet formats, we provide an analytical characterization of the achievable rate regions, which, for a network of N nodes, turns out to be the interior of a convex ...
D. MIORANDI, ZANELLA, ANDREA
openaire   +2 more sources

Capacity Enhancement in 60 GHz Based D2D Networks by Relay Selection and Scheduling

open access: yesInternational Journal of Antennas and Propagation, Volume 2015, Issue 1, 2015., 2015
Millimeter‐wave or 60 GHz communication is a promising technology that enables data rates in multigigabits. However, its tremendous propagation loss and signal blockage may severely affect the network throughput. In current data‐centric device‐to‐device (D2D) communication networks, the devices with intended data communications usually lay in close ...
Waheed ur Rehman   +4 more
wiley   +1 more source

BGN: A Novel Scatternet Formation Algorithm for Bluetooth‐Based Sensor Networks

open access: yesMobile Information Systems, Volume 7, Issue 2, Page 93-106, 2011., 2011
To address the unreliability and inefficiency of the existing algorithms for Bluetooth scatternet formation, this paper proposes a new efficient algorithm, Bluetooth Growing Network (BGN) algorithm, which constructs Bluetooth scatternet by adding reserve links among its branch nodes so that the resulting scatternet can maintain a high degree of ...
Yongjun Li   +3 more
wiley   +1 more source

Improving Sensing Accuracy in Cognitive PANs through Modulation of Sensing Probability

open access: yesMobile Information Systems, Volume 5, Issue 2, Page 177-193, 2009., 2009
Cognitive radio technology necessitates accurate and timely sensing of primary users′ activity on the chosen set of channels. The simplest selection procedure is a simple random choice of channels to be sensed, but the impact of sensing errors with respect to primary user activity or inactivity differs considerably. In order to improve sensing accuracy
Vojislav B. Mišić, Jelena Mišić
wiley   +1 more source

GUARANTEEING QoS IN BLUETOOTH SCATTERNET SENSOR NETWORK [PDF]

open access: yesICTACT Journal on Communication Technology, 2011
Bluetooth is a low power and cost-effective short range wireless network technology working in 2.4GHz ISM band. Bluetooth can be implemented either in piconet or Scatternet.
R. Dhaya, V. Sadasivam, R. Kanthavel
doaj  

60 GHz MAC Standardization: Progress and Way Forward

open access: yes, 2015
Communication at mmWave frequencies has been the focus in the recent years. In this paper, we discuss standardization efforts in 60 GHz short range communication and the progress therein.
Cao, Zizheng   +4 more
core   +1 more source

Enabling Cognitive Load‐Aware AR with Rateless Coding on a Wearable Network

open access: yesAdvances in Multimedia, Volume 2008, Issue 1, 2008., 2008
Augmented reality (AR) on a head‐mounted display is conveniently supported by a wearable wireless network. If, in addition, the AR display is moderated to take account of the cognitive load of the wearer, then additional biosensors form part of the network. In this paper, the impact of these additional traffic sources is assessed.
R. Razavi   +3 more
wiley   +1 more source

Throughput Limits of IEEE 802.11 and IEEE 802.15.3

open access: yes, 2009
IEEE 802.11 and IEEE 802.15.3 are wireless standards originally designed for wireless local area network (WLAN) and wireless personal area network (WPAN). This paper studies MAC throughput analysis of both standards.
Islam, S. M. Riazul   +4 more
core   +1 more source

Fuzzy Logic Control of Adaptive ARQ for Video Distribution over a Bluetooth Wireless Link

open access: yesAdvances in Multimedia, Volume 2007, Issue 1, 2007., 2007
Bluetooth′s default automatic repeat request (ARQ) scheme is not suited to video distribution resulting in missed display and decoded deadlines. Adaptive ARQ with active discard of expired packets from the send buffer is an alternative approach. However, even with the addition of cross‐layer adaptation to picture‐type packet importance, ARQ is not ...
R. Razavi   +3 more
wiley   +1 more source

Bluetooth: Opening a Blue Sky for Healthcare

open access: yesMobile Information Systems, Volume 2, Issue 2-3, Page 151-167, 2006., 2006
Over the last few years, there has been a blossoming of developing mobile healthcare programs. Bluetooth technology, which has the advantages of being low‐power and inexpensive, whilst being able to transfer moderate amounts of data over a versatile, robust and secure radio link, has been widely applied in mobile healthcare as a replacement for cables.
X. H. Wang, M. Iqbal
wiley   +1 more source

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