691 search results - page 74 / 139 » Communicating Under Channel Uncertainty |
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—In this paper, we propose an efficient selective receiver for space-time block coding (STBC) scheme. In this proposed scheme, we divide the received signals into two groups. By ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—This paper investigates time of arrival estimation via impulse radio ultra-wideband technology. A dense multipath channel is assumed and frequency-selective propagation effects ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Relay power allocation has been shown to provide substantial performance gain in wireless relay channels when perfect global channel state information (CSI) is available. In th...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Trellis codes based on linear congruential recursions have recently been introduced as powerful source codes. For a modest computational complexity they offer excellent rate di...
ICC
2007
IEEE
14 years 24 days ago
2007
IEEE
Abstract-- Most user cooperation protocols work in a timesharing manner, where each user transmits its own message and relays for the other at different segments of a time slot. We...