[PDF] Top 20 Massive MIMO transmission techniques

... sistemas massive MIMO (Multiple Input Multiple Output) com esquemas de diretividade a operar no espectro de ondas milimétricas formarão a base tecnológica do ...estruturas massive MIMO pode ... See full document

... and massive MIMO are a promising combination to achieve the multi-Gb/s required by future 5G wireless ...processing techniques for hybrid analog-digital ...wave massive MIMO ... See full document

... a MIMO scheme. MIMO is fundamen- tally different from smart antenna techniques developed to enhance the perfor- mance of a single data signal, such as beamforming and diversity ...[13]. MIMO ... See full document

... In this chapter, the problem of estimating single-user massive MIMO channels using DL pilots is investigated. In this context, the number of DL pilots tends to increase as the number of antennas scales up. ... See full document

... Let us start by comparing the conventional ZF, MRC and EGC schemes with the ideal IB-DFE receiver. As expected, the performance of the ZF receiver is acceptable since we are considering R > T , which reduces the ... See full document

... An important note about the FBMC signal is that in contrary to OFDM, the orthogonality is not ensured for all the carriers, there is a different concept involved. In FBMC, each subcarrier is individually filtered and ... See full document

... From the received signal, one is interested in performing hard decisions of x, denoted by ˆ x. Note that channel coding techniques will not be considered in this paper; though, the results herein presented are ... See full document

... In this paper, we consider the use of both multiplexed and implicit pilots for the SISO and MIMO settings with QPSK, 16QAM and 64QAM. For the implicit case, non-data-dependent pilots were used; i.e., the first ... See full document

... of massive MIMO (Multiple-Input, Multiple Output) ...uplink transmission using massive MIMO combined with SC-FDE (Single-Carrier with Frequency-Domain ... See full document

... MmW massive MIMO may exploit new and efficient spatial processing techniques such as beamforming/precoding and spatial multiplexing at the transmitter and/or receiver sides ...these techniques ... See full document

... simply MIMO, and the denotation of the use of several an- tennas in the transmission and reception of signals from a Base Station to another Base Station, using a set of antennas enables the ... See full document

... prefix-assisted techniques like OFDM (Orthogonal Frequency Division Multiplexing) or SC-FDE (Single-Carrier with Frequency-Domain Equalization) [7] ...Block transmission techniques with a cyclic ... See full document

... Detection algorithms like zero forcing (ZF), maximum likelihood detection (MLD) and minimum mean square estimation (MMSE) applicable to MIMO can be applied for MIMO-OFDM as well with slight changes in the ... See full document

... In massive MIMO, the spatial focusing of energy into ever-smaller regions of space potentially brings huge improvements in throughput and radiated energy ...limited transmission rate, the overhead to ... See full document

... Figure 5 shows the performance results for IB-DFE and MRC receivers. As for the MIMO system, the first iteration of the MRC presents weak values as shown in Figure 5a. For a BER of 2 × 10 −4 , the simulated value ... See full document

... Overall, the challenges are mostly because of limited availability of radio frequency spectrum and a complex time-varying wireless environment (fading and multipath). In nowadays, the key goal in wireless communication ... See full document

... wireless transmission in a typical classroom environment, as seen in gure ...data transmission to multiple users (students) in ...a massive MIMO beamforming antenna array is ... See full document

... • 5G systems (2020) are supposed to have much higher throughputs, capacity and spectral efficiency requirements than current systems, and many techniques are independently emerging for these systems (support of 1 ... See full document

... maximum-ratio transmission (MRT) in uplink or downlink, respectively, the effects of uncorrelated noise and intracell interference tend to disappear because, as the law of large numbers implies, the channel matrix ... See full document

... The next generation wireless communication systems require high data rates in order to satisfy the growing demands of the users. In this context, new technologies have been developed in order to comply with the ... See full document