—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
Abstract— In this paper, we develop and analyze a lowcomplexity cooperative protocol that significantly increases the average throughput of multi-hop upstream transmissions for ...
Alexandre de Baynast, Omer Gurewitz, Edward W. Kni...
—A key technology in cooperative communications is distributed space-time coding (DSTC) which achieves spatial diversity gain from multiple relays. A novel DSTC, called randomize...
Pei Liu, Chun Nie, Elza Erkip, Shivendra S. Panwar
Abstract— The use of multi-user detection (MUD) in a cooperative CDMA network is investigated for the uplink in synchronous CDMA systems. Suppose that, at any instant in time, pa...
— For a three user Gaussian multiple access channel (MAC), we propose a new superposition block Markov encoding based cooperation scheme. Our scheme allows the three users to sim...