Sciweavers

CORR
2006
Springer
112views Education» more  CORR 2006»
13 years 11 months ago
Outage Capacity of the Fading Relay Channel in the Low SNR Regime
In this paper we look at the outage capacity of the fading relay channel with half-duplex constraint in the low SNR regime. First we consider the scenario that the channel state i...
Amir Salman Avestimehr, David N. C. Tse
CORR
2008
Springer
69views Education» more  CORR 2008»
13 years 11 months ago
Two Models for Noisy Feedback in MIMO Channels
Two distinct models of feedback, suited for FDD (Frequency Division Duplex) and TDD (Frequency Division Duplex) systems respectively, have been widely studied in the literature. In...
Vaneet Aggarwal, Gajanana Krishna, Srikrishna Bhas...
CORR
2008
Springer
78views Education» more  CORR 2008»
13 years 11 months ago
Distributed Beamforming with Feedback: Convergence Analysis
The focus of this work is on the analysis of transmit beamforming schemes with a low-rate feedback link in wireless sensor/relay networks, where nodes in the network need to imple...
Che Lin, Venugopal V. Veeravalli, Sean P. Meyn
GLOBECOM
2006
IEEE
14 years 4 months ago
A Lattice-Based MIMO Broadcast Precoder with Block Diagonalization for Multi-Stream Transmission
Abstract— Precoding with block diagonalization is an attractive approach for approaching sum capacity in multiuser MIMO (multiple input multiple output) broadcast channels. This ...
Seijoon Shim, Chan-Byoung Chae, Robert W. Heath Jr...
VTC
2007
IEEE
14 years 5 months ago
Sounding Method for Proportional Fair Scheduling in OFDMA/FDD Uplink
- Sounding provides a BS with knowledge of the channel state information of a user in an orthogonal frequency division multiple access (OFDMA) full duplex division (FDD) uplink. In...
Jung Min Choi, Hyojin Lee, Hyun Kyu Chung, Jae Hon...
ICC
2007
IEEE
106views Communications» more  ICC 2007»
14 years 5 months ago
Differential Space-Frequency Modulation and 2D-Detection for MIMO-OFDM
Abstract— In this paper differential space–frequency modulation (DSFM) for transmission over multiple–input multiple– output channels using orthogonal frequency division mu...
Volker Pauli, Lutz H.-J. Lampe, Johannes Huber
ICC
2007
IEEE
104views Communications» more  ICC 2007»
14 years 5 months ago
Multiplexing Video on Broadcast Channels via Convex Programs
— We propose a joint power- and rate-control scheme to broadcast a multiplicity of video sequences over a broadcast channel. The formulation is intended to be general in scope, w...
Raju Hormis, Elliot N. Linzer, Xiaodong Wang
ICC
2007
IEEE
109views Communications» more  ICC 2007»
14 years 5 months ago
Receiver Design for Wireless Relay Channels with Regenerative Relays
— We develop a general framework for design of receivers for the wireless relay channel. We derive the optimum detectors for various degrees of channel state information (CSI) at...
Majid Nasiri Khormuji, Erik G. Larsson
VTC
2008
IEEE
108views Communications» more  VTC 2008»
14 years 5 months ago
Bi-Directional Multi-Antenna Relay Communications with Wireless Network Coding
Abstract: In this paper, we consider a two-way or bidirectional communications system with a relay equipped with multiple antennas. We show that when the downlink channel state inf...
Chau Yuen, Woon Hau Chin, Yong Liang Guan, Wenhua ...
PIMRC
2008
IEEE
14 years 5 months ago
Signal space diversity for spatial multiplexing
— When channel state information is available at the transmitter, we can diagonalize a MIMO channel with SVD transceivers. However, outage of the weaker eigenchannels limits the ...
Gajanana Krishna, Kothapalli V. Srinivas, Srikrish...