Krishna Nehra

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We consider a dynamic spectrum sharing system consisting of a primary user, whose licensed spectrum is allowed to be accessed by a secondary user as long as it does not violate the prescribed interference limit inflicted on the primary user. Assuming the Nakagami-m block-fading environment, we aim at maximizing the performance of secondary user's link in(More)
Link adaptation using adaptive modulation and coding (AMC) is a popular physical layer technique for efficient use of time-varying fading channel. In this paper, using a cross-layer approach, we analyze the spectral efficiency of a variable rate transmission scheme in a convolutionally-coded M-ary quadrature amplitude modulation (M-QAM) system under block(More)
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