66 search results - page 10 / 14 » Improving Wireless Access Control Schemes via Adaptive Power... |
TSP
2008
14 years 9 months ago
2008
We propose a wireless fading channel prediction algorithm for a pilot-symbol aided Orthogonal Frequency Division Multiplexing (OFDM) system. Assuming a doubly selective (time and ...
ETT
2006
14 years 9 months ago
2006
The popular IEEE 802.11 WLAN today does not provide any quality-of-service (QoS) because of its contention-based channel access nature of the medium access control (MAC). Therefore...
CORR
2010
Springer
14 years 9 months ago
2010
Springer
Adaptive orthogonal frequency division multiple access (OFDMA) has recently been recognized as a promising technique for providing high spectral efficiency in future broadband wire...
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UIC
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. Recent experimental studies have shown that radio links between low-power devices are extremely unreliable. In particular, the instability and unpredictability of low-pow...
ICC
2008
IEEE
15 years 3 months ago
2008
IEEE
— Rain, snow, gaseous, cloud, fog, scintillation and other atmospheric properties can have a distorting effect on signal fidelity of Ku and Ka bands, thus resulting in excessive ...