26496 search results - page 5133 / 5300 » An Approach to Computing Ethics |
151
click to vote
VTC
2008
IEEE
16 years 11 days ago
2008
IEEE
In digital cooperative relaying, signals from the source-destination and relay-destination links are combined at the destination to achieve spatial diversity. These signals do not ...
181
Voted
WCNC
2008
IEEE
16 years 11 days ago
2008
IEEE
—In this paper, a wireless cognitive radio sensor network is considered, where each sensor node is equipped with cognitive radio and the network is a multi-carrier system operati...
144
click to vote
WCNC
2008
IEEE
16 years 11 days ago
2008
IEEE
Abstract—Using cooperative transmission, two or more singleantenna users can share their antennas to achieve spatial diversity in a slow fading channel. One relaying protocol tha...
164
click to vote
WCNC
2008
IEEE
16 years 11 days ago
2008
IEEE
— In this paper, we investigate two selective relaying schemes in cooperative OFDM systems. Selective OFDMA relaying, where the relay selection is performed in a per-subcarrier m...
190
click to vote
WCNC
2008
IEEE
16 years 11 days ago
2008
IEEE
—1 In ISM bands, many wireless protocols proliferate such as 802.11, Bluetooth, and ZigBee. However, these incompatible protocols create complex coexistence and connectivity prob...