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This paper investigates the channel parameter estimation algorithm by using the Space-Alternating Generalized Expectation-Maximization (SAGE). Two strategies, i.e., parallel interference cancelation (PIC) and serial interference cancelation (SIC), are implemented and validated in the simulated SV channel model. Based on the massive MIMO channel measurement results in an indoor hall scenario in the...
This paper reports a novel design and system performance evaluation of 3D MIMO under LTE-A framework based on 3GPP FD MIMO channel model.We exhibit a creative design of centralized configuration for data processing convenience on BS side considering massive MIMO antenna structure, we also present analysis of three main risks on 3D massive MIMO demonstrator design, including time synchronization, channel...
Towards future large-volume data (such as UHD video) transferring between data storage and server, massive MIMO concept for sub-THz wireless communication by CMOS technology is explored in this paper. To compensate large path loss and attenuation, CMOS power efficient RF-front for massive MIMO is discussed by the use of metamaterial device for coherent sub-THz signal generation, propagation and detection.
In this paper, XPOL channel model is described at first, and then eigenvector structures in rank1 and rank2 transmissions are analyzed. Finally, codebook structure and a method for XPOL codebook design are proposed. Link level performance is also evaluated.
Long term evolution (LTE) is one of the most effective techniques to improve the capacity and bit of communication. In order to detect the presence of the primary user signal with high probability in LTE, spectrum sensing is a fundamental requirement to achieve the goal of cognitive radio (CR). we consider cooperative spectrum sensing in LTE based on energy detection. This is a basic condition for...
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