We develop and analyze low-complexity cooperative diversity protocols that combat fading
induced by multipath propagation in wireless networks. The underlying techniques exploit …

We consider three-node wireless relay channels in a Rayleigh-fading environment.
Assuming transmitter channel state information (CSI), we study upper bounds and lower …

To effectively combat multipath fading across multiple protocol layers in wireless networks,
this dissertation develops energy-efficient algorithms that employ certain kinds of …

The capacity of a particular large Gaussian relay network is determined in the limit as the
number of relays tends to infinity. Upper bounds are derived from cut-set arguments, and …

This paper studies the resource allocation for orthogonal frequency-division multiple-access
relay network with multiple source nodes, multiple relay nodes, and a single destination …

Achievable rates with amplify-and-forward (AF) and decode-and-forward (DF) cooperative
strategies are examined for relay networks. Motivated by sensor network applications, power …

The use of the spatial dimension is known to greatly increase the reliability of quasi-static (ie,
nonergodic) wireless channels. In this paper, it is demonstrated that most of this gain can …

We address the minimum-energy broadcast problem under the assumption that nodes
beyond the nominal range of a transmitter can collect the energy of unreliably received …

We consider the power efficiency of a communications channel, ie, the maximum bit rate that
can be achieved per unit power (energy rate). For additive white Gaussian noise (AWGN) …

In this paper, we address the multi-user scheduling problem of the multi-user two-way full-
duplex (FD) decode-and-forward relay system. According to the availability of the channel …