1512 search results - page 109 / 303 » Principles of IEEE 802.11s |
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—In this paper a spatial phase coding (SPC) scheme is investigated for its application in OFDM systems. With SPC the phase relation of the signals between multiple transmit anten...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— We propose a hybrid ARQ scheme using recursive convolutional codes and the turbo principle. In the first transmission the system encodes the data through a systematic ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— We describe a decentralized learning-based activation algorithm for a ZigBee-enabled unattended ground sensor network. Sensor nodes learn to monitor their environment i...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract—In this paper, a new variant of the McEliece cryptosystem, based on Quasi-Cyclic Low-Density Parity-Check (QCLDPC) codes, is studied. In principle, such codes can substi...
ICDM
2007
IEEE
14 years 3 months ago
2007
IEEE
This paper proposes an optimisation to the UK-means algorithm, which generalises the k-means algorithm to handle objects whose locations are uncertain. The location of each object...