• Documents
  • Authors
  • Tables
  • Log in
  • Sign up
  • MetaCart
  • DMCA
  • Donate

CiteSeerX logo

Tools

Sorted by:
Try your query at:
Semantic Scholar Scholar Academic
Google Bing DBLP
Results 1 - 10 of 724
Next 10 →

1 Interference Channel with an Out-of-Band Relay

by Onur Sahin, Osvaldo Simeone, Elza Erkip
"... Abstract—A Gaussian interference channel (IC) with a relay is considered. The relay is assumed to operate over an orthogonal band with respect to the underlying IC, and the overall system is referred to as IC with an out-of-band relay (IC-OBR). The system can be seen as operating over two parallel i ..."
Abstract - Add to MetaCart
Abstract—A Gaussian interference channel (IC) with a relay is considered. The relay is assumed to operate over an orthogonal band with respect to the underlying IC, and the overall system is referred to as IC with an out-of-band relay (IC-OBR). The system can be seen as operating over two parallel interferencelimited channels: The first is a standard Gaussian IC and the second is a Gaussian relay channel characterized by two sources and destinations communicating through the relay without direct links. We refer to the second parallel channel as OBR Channel (OBRC). The main aim of this work is to identify conditions under which optimal operation, in terms of the capacity region of the IC-OBR, entails either signal relaying and/or interference forwarding by the relay, with either a separable or non-separable use of the two parallel channels, IC and OBRC. Here “separable ” refers to transmission of independent information over the two constituent channels. For a basic model in which the OBRC consists of four orthogonal channels from sources to relay and from relay to destinations (IC-OBR Type-I), a condition is identified under which signal relaying and separable operation is optimal. This condition entails the presence of a relay-to-destinations capacity bottleneck on the OBRC and holds irrespective of the IC. When this condition is not satisfied, various scenarios, which depend on the IC channel gains, are identified in which interference forwarding and non-separable operation are necessary to achieve optimal performance. In these scenarios, the system exploits the “excess capacity ” on the OBRC via interference forwarding to drive the IC-OBR system in specific interference regimes (strong or mixed). The analysis is then turned to a more complex IC-OBR, in which the OBRC consists of only two orthogonal channels, one from sources to relay and one from relay to destinations (IC-OBR Type-II). For this channel, some capacity resuls are derived that parallel the conclusions for IC-OBR Type-I and point to the additional analytical challenges. I.

1 The Limit of the Boltzmann Equation to the Euler Equations for Riemann Problems

by Feimin Huang, Yi Wang, Yong Wang, Tong Yang
"... ar ..."
Abstract - Add to MetaCart
Abstract not found

unknown title

by M. Escobedo, J. J. L. Velázquez
"... ar ..."
Abstract - Add to MetaCart
Abstract not found

AND

by Tomer Michaeli, Yonina C. Eldar, Guillermo Sapiro , 2014
"... ar ..."
Abstract - Add to MetaCart
Abstract not found

:1

by Melanie Rupflin , 2014
"... ar ..."
Abstract - Add to MetaCart
Abstract not found

J. London Math. Soc. (2) 75 (2007) 545–562 C2007 London Mathematical Society doi:10.1112/jlms/jdm033 ON BASE SIZES FOR ACTIONS OF FINITE CLASSICAL GROUPS

by Timothy C. Burness
"... Let G be a finite almost simple classical group and let Ω be a faithful primitive non-standard G-set. A subset of Ω is a base for G if its pointwise stabilizer in G is trivial. Let b(G) be the minimal size of a base for G. A well-known conjecture of Cameron and Kantor asserts that there exists an ab ..."
Abstract - Add to MetaCart
an absolute constant c such that b(G) c for all such groups G, and the existence of such an undetermined constant has been established by Liebeck and Shalev. In this paper we prove that either b(G) 4, or G = U6(2) · 2, Gω = U4(3) · 22 and b(G) = 5. The proof is probabilistic, using bounds on fixed

6 EXPLICIT COERCIVITY ESTIMATES FOR THE LINEARIZED BOLTZMANN AND LANDAU OPERATORS

by unknown authors
"... cc sd ..."
Abstract - Add to MetaCart
Abstract not found

EXPLICIT COERCIVITY ESTIMATES FOR THE LINEARIZED BOLTZMANN AND LANDAU OPERATORS

by unknown authors
"... ar ..."
Abstract - Add to MetaCart
Abstract not found

unknown title

by unknown authors
"... ACKNOWLEDGMENTS I would like to give many thanks to Dr. Shengli Fu and Dr. Yan Huang as my advi- ..."
Abstract - Add to MetaCart
ACKNOWLEDGMENTS I would like to give many thanks to Dr. Shengli Fu and Dr. Yan Huang as my advi-

:1

by Aydin Sezgin, A. Salman Avestimehr, M. Amin Khajehnejad, Babak Hassibi
"... iv ..."
Abstract - Add to MetaCart
Abstract not found
Next 10 →
Results 1 - 10 of 724
Powered by: Apache Solr
  • About CiteSeerX
  • Submit and Index Documents
  • Privacy Policy
  • Help
  • Data
  • Source
  • Contact Us

Developed at and hosted by The College of Information Sciences and Technology

© 2007-2019 The Pennsylvania State University