2897 search results - page 516 / 580 » Mobile Code Security |
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
— A CP-assisted (Cyclic Prefix) block transmission is widely accepted as a good choice for future mobile systems, taking advantage of low-cost, flexible, FFT-based (Fast Fourie...
VTC
2007
IEEE
14 years 4 months ago
2007
IEEE
Abstract-In this paper, a Q-learning-based hybrid automatic repeat request (Q-HARQ) scheme is proposed to achieve efficient resource utilization for high speed downlink packet acc...
ICC
2007
IEEE
14 years 4 months ago
2007
IEEE
— Current OFDM systems assume the channel is not time varying within one OFDM frame, and use channel estimates obtained from preamble or pilots for data symbols within the same f...
CAISE
2007
Springer
14 years 4 months ago
2007
Springer
Radio frequency identification (RFID), and more recently the development of Near Field Communication (NFC) technology, have popularized the idea of linking real-world products wit...