Advanced Transmission Schemes for the 4th Generation of Mobile Communication Systems
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Beschreibung
Current studies predict that data traffic in mobile communication systems will exponentially increase in the next years. Consequently, mobile operators are confronted with enormous challenges, since the data capacity of future systems has to increase at a concurrent reduction of the costs per transported bit. It is clear that by extending the frequency spectrum alone the demand for higher data rates cannot be met, since the frequency spectrum is scarce as well as expensive. Therefore, a considerable increase in spectral efficiency will be indispensable for future mobile communication systems. In this book advanced transmission schemes for the fourth generation of mobile networks are proposed and their achievable performance is evaluated based on system level simulations, considering all relevant aspects of real systems. More precisely, enhanced multi-user (MU) multiple input multiple output (MIMO) schemes based on novel feedback methods for the downlink are studied, as well as various base station cooperation techniques for the uplink. It is demonstrated that with the proposed transmission schemes gains up to 60% in terms of average spectral efficiency may be achieved compared to the state-of-the art mobile communication standard Long Term Evolution (LTE).
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