TIT
2010
12 years 11 months ago
2010
Abstract--The role of multiple antennas for secure communication is investigated within the framework of Wyner's wiretap channel. We characterize the secrecy capacity in terms...
TIT
2002
13 years 4 months ago
2002
One method for communicating with multiple antennas is to encode the transmitted data differentially using unitary matrices at the transmitter, and to decode differentially withou...
JSAC
2007
13 years 4 months ago
2007
Abstract— In this paper we study the effects of practical pilotassisted channel state estimation on the achievable information theoretic data rates (uplink and downlink) in a mul...
CCR
2010
13 years 4 months ago
2010
The use of multiple antennas and MIMO techniques based on them is the key feature of 802.11n equipment that sets it apart from earlier 802.11a/g equipment. It is responsible for s...
VTC
2006
IEEE
13 years 10 months ago
2006
IEEE
Abstract— This paper addresses Tomlinson-Harashima Precoding (THP) for the downlink of multiuser systems, where the transmitter is equipped with multiple antennas and each decent...
VTC
2006
IEEE
13 years 10 months ago
2006
IEEE
— Handover has been the most important thing for supporting the mobility and has been researched in various wireless communication systems. Handover schemes in systems with multi...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
— High-speed Internet access in subway and railway systems has been receiving more and more attention in recent years. A critical issue for such application is the ground to trai...
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
— In this paper we study the multiple antenna time reversal downlink transmission in an ultra-wideband (UWB) communication system which consists of access points and users. The a...
VTC
2008
IEEE
13 years 11 months ago
2008
IEEE
—In this paper, we propose a generalized cooperative signal transmission model for wireless networks. In this model, the source, the destination, and an arbitrary number of relay...
SECON
2008
IEEE
13 years 11 months ago
2008
IEEE
Abstract—We show that signal strength variability can be reduced by employing multiple low-cost antennas at fixed locations. We further explore the impact of this reduction on w...