43 search results - page 9 / 9 » Optimal and Suboptimal Power Allocation Schemes for OFDM-bas... |
TSP
2010
12 years 11 months ago
2010
Physical (PHY) layer security approaches for wireless communications can prevent eavesdropping without upper layer data encryption. However, they are hampered by wireless channel c...
MOBICOM
2009
ACM
13 years 11 months ago
2009
ACM
In November 2008, the FCC ruled that the digital TV whitespaces be used for unlicensed access. This is an exciting development because DTV whitespaces are in the low frequency ran...
CORR
2010
Springer
13 years 4 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...