Results 241 to 250 of about 3,179,942 (294)

Position aware communication with noisy position measurements

2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, 2010
This paper presents capacity limits of novel position aware adaptive cellular communication systems exploiting channel state information (CSI) at the transmitter (CSIT). The position aware adaptive communication systems are benchmarked against state-of-the-art adaptive modulation and coding (AMC) systems that use only feedback or predict CSIT in ...
Sand, Stephan   +3 more
openaire   +2 more sources

Position Measurement using Bluetooth

IEEE Transactions on Consumer Electronics, 2006
A Bluetooth wireless indoor position-measurement system is described. Normal Bluetooth operation uses receiver signal strength indicator (RSSI) for automatic transmitter power control to ensure satisfactory received signal-to-noise ratio. This feedback system was disabled and a novel use of RSSI allowed a series of measurements to be made. The distance
Sheng Zhou, John K. Pollard
openaire   +1 more source

Measurements of shoulder prosthesis positioning

International Congress Series, 2004
Introduction One of the most difficult aspects of shoulder arthroplasty is retroversion. The ideal angle is about 30 of posterior rotation of humeral head with regard to the frontal plane so that the humeral head squarely faces the glenoid surface in the resting position.
S. Abrassart, C. Barea, Pierre Hoffmeyer
openaire   +1 more source

Measuring positive emotions.

2003
When researchers want to assess positive feelings, they need to understand the various definitions and models of emotion. The current chapter describes the theories and various measures that derive from them, and reviews the strenghts and weaknesses of different measures of positive emotions.
Richard E. Lucas   +2 more
openaire   +1 more source

Exploring the dynamic measurement of position

Proceedings. Sixth International Symposium on Wearable Computers,, 2003
This paper describes the development of several methods for the dynamic measurement of error distribution for positioning systems. When a user moves along a path at an unknown speed, it is no longer feasible to calculate the distance between the measured and real positions. We outline three applications using different positioning systems and apply our
Randell, CN, Muller, HL
openaire   +2 more sources

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