Sciweavers

24 search results - page 4 / 5
» Interference Alignment and Spatial Degrees of Freedom for th...
Sort
View
GLOBECOM
2007
IEEE
13 years 11 months ago
Degrees of Freedom of the MIMO X Channel
— We provide achievability as well as converse results for the degrees of freedom region of a MIMO X channel, i.e., a system with two transmitters, two receivers, each equipped w...
Syed Ali Jafar, Shlomo Shamai
GLOBECOM
2009
IEEE
14 years 2 days ago
Feasibility Conditions for Interference Alignment
—The degrees of freedom (DoF) of K-user MIMO interference networks with constant channel coefficients are not known in general. Determining the feasibility of a linear interfere...
Cenk M. Yetis, Tiangao Gou, Syed Ali Jafar, Ahmet ...
TIT
2011
106views more  TIT 2011»
13 years 7 days ago
Interference Alignment-Based Sum Capacity Bounds for Random Dense Gaussian Interference Networks
We consider a dense K user Gaussian interference network formed by paired transmitters and receivers placed independently at random in a fixed spatial region. Under natural condi...
Oliver Johnson, Matthew Aldridge, Robert J. Piecho...
CORR
2010
Springer
119views Education» more  CORR 2010»
13 years 5 months ago
Ergodic Secret Alignment
In this paper, we provide a new achievable ergodic secrecy rate region for the multiple access wiretap channel in fading. Our achievable scheme is based on repeating each symbol at...
Raef Bassily, Sennur Ulukus
TWC
2011
272views more  TWC 2011»
13 years 7 days ago
On the Study of Analogue Network Coding for Multi-Pair, Bidirectional Relay Channels
—We consider a scenario where multiple pairs of users exchange information within pair with the help of a dedicated multi-antenna relay. The co-channel interference among multipl...
Chee Yen Leow, Zhiguo Ding, Kin K. Leung, Dennis G...