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- W2474872812 abstract "In this section, we study the second most investigated application of random matrix theory to wireless communications, namely multiple antenna systems, first introduced and motivated by the pioneering works of Telatar [Telatar, 1995] and Foschini [Foschini and Gans, 1998]. While large dimensional system analysis is easily defensible in CDMA networks, which typically allow for a large number of users with large orthogonal or random codes, it is not so for multiple antenna communications. Indeed, when it comes to applying approximated results provided by random matrix theory analysis, we expect that the typical system dimensions are of order ten to a thousand. However, for multiple input multiple output (MIMO) setups, the system dimensions can be of order 4, or even 2. Asymptotic results for such systems are then of minor interest. However, it will turn out in some specific scenarios that the difference between the ergodic capacity for multiple antenna systems and their respective deterministic equivalents is sometimes of order O (1/ N ), N being the typical system dimension. The per-receive antenna rate, which is of interest for studying the cost and gain of bringing additional antennas on finite size devices, can therefore be approximated within O (1/ N 2 ). This is a rather convenient rate, even for small N . In fact, as will be observed through simulations, the accuracy of the deterministic equivalents is often even better. Quasi-static MIMO fading channels We hereafter recall the foundations of multiple antenna communications.We first assume a simple point-to-point communication between a transmitter equipped with n t antennas and a receiver equipped with n r antennas." @default.
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- W2474872812 date "2011-10-08" @default.
- W2474872812 modified "2023-09-27" @default.
- W2474872812 title "Performance of multiple antenna systems" @default.
- W2474872812 doi "https://doi.org/10.1017/cbo9780511994746.015" @default.
- W2474872812 hasPublicationYear "2011" @default.
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