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Overview: This paper published by DoCoMo Euro-Labs considers space-time - frequency transmits diversity with orthogonal designs in a broadband OFDM system. On capacity considerations for Gaussian as well as real world signal constellations, it show that the concatenation of an outer error control code, a bit interleaver and orthogonal spatial transmit diversity provides an attractive MIMO scheme which is robust to channel imperfections such as spatial correlation. It proposes an application of orthogonal designs for space-time-frequency transmit diversity and give design criteria which allow using a simple combiner at the receiver also in time-varying and severely frequency-selective channels.
Unified Services Of AAA In 4G LTE Networks
The present technical white paper outlines the role of AAA services for 3GPP and non-3GPP system access in LTE technology. This paper...
Mobile Device Management for Dummies
With the increase in the use of mobile devices, you likely have questions that are left unanswered when it comes to managing and securing those devices. Well...
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