Dynamic Resource Allocation in Wireless Fading Channels

ISBN-13: 9783836470537 / Angielski / Miękka / 2008 / 144 str.

Rui Zhang

Opis

This dissertation looks at the problem of dynamic resource allocation (DRA) in both single-user and multi-user wireless fading channels. This dissertation investigates various key issues on implementation of DRA in wireless systems, such as delay constraint, algorithm complexity, feedback overhead, transceiver structure, and fairness between users, among others. This dissertation demonstrates the usefulness of convex optimization techniques for solving DRA problems in wireless fading channels. First, this dissertation studies the capacity limits and power-control policies for the single-user fading channel. Second, for the MIMO-OFDM channel, this dissertation presents a closed-loop extension of the well-known vertical Bell Labs layered space-time (V-BLAST) architecture whereby the receiver jointly optimizes the power and rate assignments for transmit antennas and then returns them to the transmitter. Third, this dissertation investigates the information-theo­retic limits of multiuser, fading, multiple-access channel (MAC). This dissertation draws an interesting dual relationship between power and capacity regions of Gaussian MAC.

O autorze

Zhang Rui Rui Zhang received the B.S. and M.S. degrees in electrical and computer engineering from National University of Singapore in 2000 and 2001, respectively, and the Ph.D. degree in electrical engineering from Stanford University, Stanford, CA, in 2007. Since 2007, he has been a Research Fellow with the Institute for Infocomm Research, Singapore.