—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...
Abstract—The problem of joint transmitter and receiver beamforming in the downlink DS-CDMA over multipath fading channels is considered in this paper. The proposed investigation ...
— We provide achievability as well as converse results for the degrees of freedom region of a MIMO X channel, i.e., a system with two transmitters, two receivers, each equipped w...
Abstract— Nowadays a lot of effort is spent on developing OFDMbased inexpensive wireless transceivers. Direct-conversion radio frequency transceivers are appealing because they a...
Eduardo Lopez-Estraviz, Stefaan De Rore, Fran&cced...
—For the uplink of the E–UTRA Long Term Evolution (LTE) system, single–carrier frequency–division multiple access (SC–FDMA) transmission has been selected. Frequency–do...
Wolfgang H. Gerstacker, Patrick Nickel, Frank Ober...