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ICC
2009
IEEE
14 years 3 months ago
2009
IEEE
—A major performance-limiting factor in terrestrial optical wireless (OW) systems is turbulence-induced fading. Exploiting the additional degrees of freedom in the spatial dimens...
VLSISP
2002
13 years 8 months ago
2002
Until recently, the theory of noncoherent communications was premised on the use of orthogonal multi-pulse modulation such as frequency shift keying. The main drawback of this modu...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— The main task in OFDM downlink scheduling design is to maximize some kind of utility considering user specific as well as system induced constraints. A typical example is the ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Multi-carrier modulations (MCM) and especially orthogonal schemes such as orthogonal frequency division multiplexing (OFDM) are currently used in many radio transmission standa...
GLOBECOM
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— In this paper, we answer the question that “Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency ...