Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless
systems. This paper surveys the fundamental capacity limits and associated transmission …

This comprehensive treatment of network information theory and its applications provides
the first unified coverage of both classical and recent results. With an approach that …

The capacity of the two-user Gaussian interference channel has been open for 30 years.
The understanding on this problem has been limited. The best known achievable region is …

Cognitive Radio Communications and Networks gives comprehensive and balanced
coverage of the principles of cognitive radio communications, cognitive networks, and …

Cognitive radio promises a low-cost, highly flexible alternative to the classic single-
frequency band, single-protocol wireless device. By sensing and adapting to its …

We provide inner bound and outer bound for the total number of degrees of freedom of the K
user multiple-input multiple-output (MIMO) Gaussian interference channel with M antennas …

In this correspondence, we show that the exact number of spatial degrees of freedom (DOF)
for a two user nondegenerate (full rank channel matrices) multiple-input-multiple-output …

Establishing the capacity region of a Gaussian interference network is an open problem in
information theory. Recent progress on this problem has led to the characterization of the …

The capacity region of the two-user Gaussian interference channel (IC) is studied. Three
classes of channels are considered: weak, one-sided, and mixed Gaussian ICs. For the …

A new outer bound on the capacity region of Gaussian interference channels is developed.
The bound combines and improves existing genie-aided methods and is shown to give the …