| With the global growth of the number of mobile users and increase of high-speed data transmission services, the 4G Mobile Communication obviously can not meet the future communication development demand for frequency spectrum efficiency and energy efficiency. In the case of the frequency spectrum resource tension, small-scale multiple-input multiple-output (MIMO) communication system can, to some degree, merely meet the demand for frequency spectrum efficiency and power efficiency. However, large-scale MIMO technology not only makes a better use of the spatial dimension wireless resources and improves the frequency spectrum efficiency ratio and the system capacity, but also realizes interference suppression and effectively reduces the emission power. It also plays a vital role in building a green wireless communication system and is one of the key techniques in the future 5G Mobile communication. Cooperative Communication (CC) technology serves to mitigate wireless channel impairment, enhance communication reliability and increase transmission rate. Thus, research on MIMO CC technology is undoubtedly the important subject for 5G.This thesis focuses on researching the multiple-antenna cooperative communication system. The bit error rate and the achievable rate are particularly analyzed, and especial concerns are drawn to the quantitative influence on the two sides with very large antenna arrays. The main work includes the following parts:1 Investigation is made upon the cooperative spatial modulation(SM) system reliability performance based on the selection of antenna and the selection of relay over the Rayleigh fading channel. Therefore, the thesis firstly studies on the SM system with a selection of antenna in order to promote higher-order modulation SM diversity performance. Then, the thesis studies on the SM relay transmission protocol with a selection of antenna according to the hierarchical thoughts in the sensor network. Simulative results show that the adoption of the protocol not only promotes diversity performance of SM system but also makes more flexible in system configuration.2 Investigation is made upon the transmission system reliability performance under the decode-and-forward(DF) protocol in the case of three-node collaboration model over the Rayleigh fading channel, and conducts analysis on the system reliability performance by setting up very large antenna arrays on the relay node. First of all, this thesis focuses on the influence on the bit error rate made by the power efficiency and the antenna number of these three combinations transmission mode, including MRC/MRT, MRC/ST, SC/ST; then, particular concerns are drawn to how to optimize the system bit error rate performance through self-adaptive power allocation in the SC/SM system schemes. Simulative experiments show the SC/SM scheme of lower complexity is the most practical, and the power allocation of the SC/SM scheme with very large antenna arrays on the relay node can effective improvement the bit error rate.3 Investigation is made upon the large-scale single-input multiple-output (SIMO) system reliability performance based on the line of sight components over the Ricean-related fading channel. A maximal-ratio combining (MRC) detection scheme based only on the line of sight components is put forward for the first time in order to reduce the burden of channel estimation,and conducts an analysis on the influence on the bit error rate by the spatial correlation and the very large antenna arrays. The above analysis is extended to the situation with the frequency selective channel and the co-channel interference. Then, by studying on the single-relay-distribution of the large-scale antennas in the cooperative system model, and the quantitative influence on the bit error rate by the power scaling rules and the number of the relay antennas. Simulative results show the spatial correlation of antenna array instead is a benefit to the wireless system, and it can effectively improve the bit error rate.4 Investigation is made upon the large-scale MIMO-BF system performance based on the line of sight components over the Ricean fading channel. In order to effectively reduce the cost used for estimating the channel state information (CSI), the scattering component is regarded as interference. The sending/receiving BF scheme based on the line of sight is put forward for the first time. The thesis discusses the internal relationship among the achievable rate, the number of antennas of the sending end and receiving end and the transmission power in the absence of co-channel interference, and indicates the new BF scheme has the same asymptotic achievable rate as the perfect CSI BF scheme. Then the above analysis is extended to the situation with the co-channel interference and the DF system of cooperative relay with the spatial correlation. Simulative results show the actual achievable rate can alse be very close to the theoretical limit rate even though the number of antennas is not very large.
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