Sciweavers

GLOBECOM
2006
IEEE
14 years 5 months ago
Sum Rate Maximization and Transmit Power Minimization for Multi-User Orthogonal Space Division Multiplexing
—We demonstrate that receive antenna selection (RAS) provides significant increase in the achievable sum rates for multi-user MIMO wireless downlinks that employ block diagonaliz...
Boon Chin Lim, Christian Schlegel, Witold A. Krzym...
GLOBECOM
2006
IEEE
14 years 5 months ago
Window And Backwards Decoding Achieve the Same Sum Rate for the Fading Cooperative Gaussian Multiple Access Channel
— For a two user fading Gaussian multiple access channel with user cooperation, we show that window decoding achieves the same sum rate as backwards decoding, when the encoding i...
Onur Kaya
GLOBECOM
2006
IEEE
14 years 5 months ago
Optimality of FDMA in Gaussian Multiple-Access Channels with Non-zero SNR Margin and Gap
— This paper investigates the effect of non-zero SNR margin and coding gap on the maximum sum rate and achievable rate region of the Gaussian Multiple-Access Channel (MAC). Frequ...
Sumanth Jagannathan, John M. Cioffi
ICC
2007
IEEE
14 years 5 months ago
Opportunistic Power Allocation for Random Beamforming in MISO Broadcast Channels
Abstract— This paper proposes the opportunistic power allocation (OPA) scheme for random beamforming with a limited feedback rate. Without the channel state information, the prop...
Edward W. Jang, Hyukjoon Kwon, John M. Cioffi
ICC
2007
IEEE
14 years 5 months ago
MIMO Broadcast Channels with Channel Estimation
— We consider a multi-user MIMO downlink where the transmitter has only estimates of the channel while the receivers have perfect channel information. The impact of channel estim...
Jun Shi, Minnie Ho
COMSWARE
2007
IEEE
14 years 5 months ago
Sequence Design for Symbol-Asynchronous CDMA with Power or Rate Constraints
— Sequence design and resource allocation for a symbol-asynchronous chip-synchronous code division multiple access (CDMA) system is considered in this paper. A simple lower bound...
Jyothiram Kasturi, Rajesh Sundaresan
GLOBECOM
2008
IEEE
14 years 6 months ago
Joint Network Coding and Superposition Coding for Multi-User Information Exchange in Wireless Relaying Networks
—A joint network coding and superposition coding (JNSC) scheme is proposed for information exchange between more than two users in a wireless relaying network. In this paper we c...
Chun-Hung Liu, Ari Arapostathis
GLOBECOM
2009
IEEE
14 years 6 months ago
A Two-Stage Precoding Method Based on Interference Alignment for Interference Channel Systems
— It was shown by Cadambe and Jafar that the interference alignment (IA) algorithm achieves the theoretical bound on degrees of freedom (DOF) for interference channel systems. Ho...
Hakjea Sung, Seokhwan Park, Kyoung-Jae Lee, Inkyu ...
GLOBECOM
2009
IEEE
14 years 6 months ago
An Iterative Precoder Optimization Method for K-User Interference Channel Systems
— In this paper, we propose a linear precoding and decoding scheme maximizing the sum rate of K-user interference channel systems where each node has multiple antennas. With an i...
Hakjea Sung, Kyoung-Jae Lee, Seok-Hwan Park, Inkyu...