934 search results - page 81 / 187 » exact 2007 |
121
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
—Frequency hopping systems have been widely used in military communications to prevent hostile jamming, interception and detection. In traditional frequency hopping (FH) systems,...
144
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— Cooperative diversiy is a promising technology for future wireless networks. In this paper, based on the moment generating function (MGF), we derive exact closed-form e...
134
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
— We study the multiple antenna half-duplex relay channel from the diversity-multiplexing tradeoff (DMT) perspective. We find performance upper bounds and show that compress-and...
114
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ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
— In this paper, a scheduling problem is considered in the cellular network where there exist CBR (constant bit rate) users requiring exact minimum average throughput and delay g...
ICC
2007
IEEE
15 years 10 months ago
2007
IEEE
Abstract— We derive new analytic approximations to the capacity distribution of frequency-selective Rayleigh fading MIMO channels. The results apply specifically to OFDM-based s...