146 search results - page 22 / 30 » wi 2008 |
JCM
2008
14 years 9 months ago
2008
We compare four open-loop transmit diversity schemes in a coded Orthogonal Frequency Division Multiplexing (OFDM) system with four transmit antennas, namely cyclic shift diversity ...
CN
2006
14 years 9 months ago
2006
In today' s competitive electric utility marketplace, real-time information becomes the key factor for reliable delivery of power to the end-users, profitability of the electr...
NETWORK
2008
14 years 9 months ago
2008
Wireless mesh networking is emerging as an important architecture for future-generation wireless communications systems. Quality of service provisioning is a challenging issue in ...
TSP
2008
14 years 9 months ago
2008
The problem of transmit beamforming to multiple cochannel multicast groups is considered, when the channel state is known at the transmitter and from two viewpoints: minimizing tot...
TWC
2008
14 years 9 months ago
2008
Abstract--The wireless medium contains domain-specific information that can be used to complement and enhance traditional security mechanisms. In this paper we propose ways to expl...