In this paper, we study the capacity of the two-user multiple-input multiple-output (MIMO) linear deterministic interference channel (IC), with possible correlations within/between the channel matrices. The capacity region is characterized in terms of the rank of the channel matrices. It is shown that linear precoding with Han-Kobayashi type of rate-splitting, i.e., splitting the information-be...

Abstract— A discrete memoryless generalized multiple access channel (GMAC) with confidential messages is studied, where two users attempt to transmit common information to a destination and each user also has private (confidential) information intended for the destination. This channel generalizes the multiple access channel (MAC) in that the two users also receive channel outputs. It is assume...

A technique for bounding the capacities of networks of independent channels is introduced. Parts I and II treat pointto-point and multiterminal channels, respectively. Bounds are derived using a new tool called a bounding model. Channel 1 is an upper (lower) bounding model for channel 2 if replacing channel 2 by channel 1 in any network yields a new network whose capacity region is a superset (...

The capacity region of a two-user Gaussian multiaccess channel with intersymbol interference (ISI), where the inputs pass through respective linear systems and are then superimposed before being corrupted by an additive Gaussian noise process, is found. A novel geometrical method is given to obtain the optimal input power spectral densities and the capacity region. This method can be viewed as ...

In this paper we investigate the capacity behavior of spatial constrained multiple-antenna array communications. By increasing the number of antennas within a fixed region of space the antenna array becomes dense and spatial correlation inhibits capacity growth. Using a novel spatial channel model we show that the underlying physics of wave propagation limits the capacity of constrained arrays....

One hundred consecutive patients with radicular pain due to myelographically proven herniated lumbar intervertebral discs were treated with initially high but tapering doses of intramuscular dexamethasone for seven days. All patients had reflief of pain within 24-48 hours. Bed rest was eliminated as a significant factor in the improvement. Nine patients required surgery at the end of the hospit...

We derive inner and outer bounds on the capacity region of a class of compound interference channels and quantify the gap between these bounds. From this we derive the capacity region of the compound version of El Gamal and Costa’s deterministic interference channel, and characterize to within 3 bits the capacity region of scalar compound Gaussian interference channels. Our main contributions i...

In this chapter, we investigate a wireless powered communication network (WPCN) comprised of a power beacon that broadcasts radio frequency (RF) energy to a set of energy harvesting (EH) transmitters equipped with unlimited batteries, which use the harvested energy to transmit information back to the power-beacon in a non-orthogonal multiple access fashion. For this network, we propose a commun...

This paper clarifies a necessary condition and a sufficient condition for transmissibility for a given set of general sources and a given general broadcast channel. The approach is based on the informationspectrum methods introduced by Han and Verdú. Moreover, we consider the capacity region of the general broadcast channel with arbitrarily fixed error probabilities if we send independent priva...

This paper studies evaluation of the capacity region for interference networks with point-to-point (p2p) capacity-achieving codes. Such capacity region has recently been characterized as union of several sub-regions each of which has distinctive operational characteristics. Detailed evaluation of this region, therefore, can be accomplished in a very simple manner by acknowledging such character...