VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
— The combination of space-time block codes (STBC) and spatial multiplexing (SM) schemes has the advantages of diversity gain and high data rate. For such STBC/SM hybrid systems,...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
A major drawback of the Orthogonal Frequency Division Multiplex (OFDM) principle is the high dynamic range of the transmit signal. The transmit Power Amplifier (PA) and other ele...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
— There are various applications in wireless sensor networks which require knowing the relative or actual position of the sensor nodes. Recently, there have been different locali...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
In this study, a new physical layer transmission technique is proposed with the spectrum efficiency up to two times of that of the Eureka-147 DAB system. The proposed technique com...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
— Based on the end-to-end delay experienced by the user, this paper derives a spreading factor allocation map for the four UMTS traffic classes and for four user profiles with ...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
Abstract— Orthogonal space-time block-coded (OSTBC) orthogonal frequency-division multiplexing (OFDM) links for frequency-selective multiple-input multiple-output (MIMO) channels...
VTC
2006
IEEE
2006
IEEE
Distributed Stochastic Power and Rate Allocation for Energy Minimization in Wireless Sensor Networks
14 years 5 months ago
— In this paper, we propose a distributed stochastic algorithm for power and rate allocation in ad hoc wireless sensor networks. The problem we deal with is formulated as a trans...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
Abstract— This paper describes an automatic wireless LAN access points planning approach based on a multicriteria modelling and solving. A realistic and efficient wLAN planning ...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
— In this paper, we study the MAC access delay of EDCA in the draft IEEE 802.11e standard under saturated conditions. We obtain explicit expressions for the mean, the standard de...
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
—Transmitter-based signal pre-processing is investigated for the two-dimensional (2-D) OFDM-CDMA (orthogonal frequency division multiplexing, code division multiple access) forwa...