108 search results - page 12 / 22 » Spatial correlation in ultrawideband channels |
TWC
2008
14 years 11 months ago
2008
The study of the class of new spatial multiplexing architectures (SMAs) is continued. As introduced in Part I of this paper, the SMAs consist of joint design of rate and power all...
TWC
2008
14 years 11 months ago
2008
Abstract--The closed-form exact bit error rate (BER) expressions of generalized orthogonal space-time block codes (OSTBCs) are first derived for quadrature amplitude modulation (QA...
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ICC
2009
IEEE
14 years 9 months ago
2009
IEEE
Abstract--Upcoming multi antenna systems such as 3GPPLTE employ code book based multi-mode precoding in order to adapt to a wide range of channel conditions. Link adaptation, which...
JSAC
2007
14 years 11 months ago
2007
— This paper studies the fundamental limits of MIMO broadcast channels from a high level, determining the sum-rate capacity of the system as a function of system paramaters, such...
ICC
2007
IEEE
15 years 6 months ago
2007
IEEE
—Rate adaptation, as a challenging issue for wireless purpose. Relatively little attention has been paid on identifying network design, has been an active research topic for year...