Sciweavers

ICC
2008
IEEE
14 years 6 months ago
Repeat Accumulate code Division Multiple Access and its Hybrid Detection
— In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (...
Rong Zhang, Lei Xu, Sheng Chen, Lajos Hanzo
ICC
2008
IEEE
14 years 6 months ago
A Two-Stage Sensing Technique for Dynamic Spectrum Access
—Dynamic spectrum access (DSA) is a promising approach for mitigating spectrum scarcity. Underlying DSA is the need for fast and reliable spectrum sensing over a potentially larg...
Ling Luo, Sumit Roy
ICC
2008
IEEE
142views Communications» more  ICC 2008»
14 years 6 months ago
Maximal Scheduling in a Hypergraph Model for Wireless Networks
— We introduce a hypergraph based interference model for scheduling in wireless networks. As a generalization of the graph model, hypergraph considers the conflicts caused by su...
Qiao Li, Gyouhwan Kim, Rohit Negi
ICC
2008
IEEE
107views Communications» more  ICC 2008»
14 years 6 months ago
Multiuser Two-Way Relaying for Interference Limited Systems
—We investigate multiuser two-way relaying strategies for interference limited systems where multiple pairs of users exchange information with their partners via an intermediate ...
Min Chen, Aylin Yener
ICC
2008
IEEE
136views Communications» more  ICC 2008»
14 years 6 months ago
Frequency-Domain Interleaving for OFDM/TDM Using MMSE-FDE
—In this paper, frequency-domain interleaving on a frame-by-frame basis for orthogonal frequency division multiplexing combined with time division multiplexing (OFDM/TDM) using m...
Haris Gacanin, Fumiyuki Adachi
ICC
2008
IEEE
14 years 6 months ago
Evolution of Base Stations in Cellular Networks: Denser Deployment versus Coordination
Abstract— It has been demonstrated that base station cooperation can reduce co-channel interference (CCI) and increase cellular system capacity. In this work we consider another ...
Yifan Liang, Andrea J. Goldsmith, Gerard J. Foschi...
ICC
2008
IEEE
142views Communications» more  ICC 2008»
14 years 6 months ago
Nonlinear Beamforming for Multiple-Antenna Assisted QPSK Wireless Systems
— A nonlinear beamforming aided detector is proposed for multiple-antenna assisted quadrature phase shift keying systems. By exploiting the inherent symmetry of the optimal Bayes...
Sheng Chen, Lajos Hanzo, Shuang Tan
ICC
2008
IEEE
115views Communications» more  ICC 2008»
14 years 6 months ago
On the Performance of Linear Least-Squares Estimation in Wireless Positioning Systems
A common technique for wireless positioning is to estimate time-of-arrivals (TOAs) of signals traveling between a target node and a number of reference nodes, and then to determin...
Sinan Gezici, Ismail Güvenç, Zafer Sah...
ICC
2008
IEEE
136views Communications» more  ICC 2008»
14 years 6 months ago
New Beamforming Schemes with Optimum Receive Combining for Multiuser MIMO systems
— In this paper, we present a new beamforming scheme for a downlink of multiuser multiple-input multipleoutput (MIMO) communication systems. Recently, a blockdiagonalization (BD)...
Sang-Rim Lee, Seokhwan Park, Sung Hyun Moon, Inkyu...