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GLOBECOM
2007
IEEE
14 years 2 months ago
Spatial Multiplexing in the Multi-User MIMO Downlink Based on Signal-to-Leakage Ratios
Abstract—Spatial multiplexing in the multi-user MIMO (MUMIMO) downlink allows each user in the system to receive multiple data subchannels simultaneously using the same time and ...
Melvin C. H. Lim, Mounir Ghogho, Desmond C. McLern...
ICASSP
2010
IEEE
13 years 7 months ago
Two novel compressed-sensing algorithms for NBI detection in OFDM systems
We propose two novel algorithms based on compressed-sensing theory to estimate and cancel narrow band interference (NBI) in orthogonal frequency division multiplexing (OFDM) syste...
Ahmad Gomaa, K. M. Zahidul Islam, Naofal Al-Dhahir
ICC
2007
IEEE
104views Communications» more  ICC 2007»
14 years 2 months ago
Improved DS-CDMA Multi-stage PIC in Fading Channels using a Generalized Soft Limiter
—In this paper, we examine performance of a multi-stage parallel interference cancellation (PIC) receiver using a generalized soft limiter. The generalized soft limiter (GSL) imp...
Beibei Wang, David W. Matolak
ICASSP
2011
IEEE
12 years 11 months ago
Robust frequency synchronization for an OFDMA uplink system disturbed by a Cognitive Radio system interference
In Cognitive Radio (CR) systems, spectrum sensing plays a key role to determine the free frequency bands. However, when the primaryuser (PU) signal spectrum exhibits localized fad...
Hector Poveda, Guillaume Ferre, Eric Grivel
TWC
2008
140views more  TWC 2008»
13 years 7 months ago
On the Performance of Spectrally-Encoded Spread-Time Ultrawideband CDMA Communication Systems
In this paper we study the performance of Spectrally-Encoded Spread-Time (SE/ST) technique when applied to ultrawideband (UWB) signals in the context of wireless code-division mult...
Mahmoud Farhang, Jawad A. Salehi