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The great potential of multi-cell processing in Coordinated Multi-point (CoMP) transmission is hindered by the limited bandwidth of the backhaul network. In this paper, we tackle this problem from two perspectives. First, we provide a thorough analytical study of the expected capacity when employing zero forcing (ZF) beamforming based on quantized channel state information (CSI). We derive simple...
Coordinated beamforming in multipoint MIMO networks has been introduced to increase the overall capacity of wireless networks. In coordinated beamforming, the channel state information between the different MIMO access points/base stations in one hand, and the mobile stations on the other hand, needs to be shared among the MIMO nodes. A “backhaul” between different MIMO access points is used to transfer...
This paper presents two novel Floating Current Source (FCS) based CMOS negative second generation current conveyor (CCII-) realizations suitable for very large scale implementation. The proposed realizations provide high voltage and current tracking accuracy, as well as large voltage and current transfer bandwidths. Simulations show that the first proposed wide band CCII- bandwidth is about 972 MHz...
We developed a design procedure for wideband electromagnetic micropower generators (WMPGs) based on piecewise-linear oscillators. We find that the dominant factors in the performance of this class of WMPGs are the stiffness ratio of the oscillator and the velocity of the moving structure at the point of impact with the stopper. We also find that designing these WMPGs requires additional steps beyond...
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