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CORR
2008
Springer
126views Education» more  CORR 2008»
14 years 10 months ago
Approximate Capacity of Gaussian Relay Networks
We present an achievable rate for general Gaussian relay networks. We show that the achievable rate is within a constant number of bits from the information-theoretic cut-set uppe...
Amir Salman Avestimehr, Suhas N. Diggavi, David N....
TIT
2011
113views more  TIT 2011»
14 years 5 months ago
Asymptotic Capacity and Optimal Precoding in MIMO Multi-Hop Relay Networks
A multi-hop relaying system is analyzed where data sent by a multi-antenna source is relayed by successive multi-antenna relays until it reaches a multi-antenna destination. Assum...
Nadia Fawaz, Keyvan Zarifi, Mérouane Debbah...
TWC
2010
14 years 5 months ago
MIMO Broadcast Channels with Spatial Heterogeneity
We develop a realistic model for multiple-input multiple-output (MIMO) broadcast channels, where each randomly located user's average SNR depends on its distance from the tran...
Illsoo Sohn, Jeffrey G. Andrews, Kwang Bok Lee
TWC
2008
85views more  TWC 2008»
14 years 10 months ago
Scaling laws of multiple antenna group-broadcast channels
Broadcast (or point to multipoint) communication has attracted a lot of research recently. In this paper, we consider the group broadcast channel where the users' pool is divi...
Tareq Y. Al-Naffouri, Amir F. Dana, Babak Hassibi
IJNSEC
2007
96views more  IJNSEC 2007»
14 years 10 months ago
Research on Data Hiding Capacity
To hide data in credentials is a key problem in information security. In this paper, a summary of the work on data hiding-capacity is made and several communication channel models...
Zhensong Liao, Yan Huang, Chisong Li