Synthesis and implementation of spatial multiplexing blocks for 3GPP-LTE using FPGA

The mobile applications such as web browsing, streaming, and file transfer demand for higher data rates. Such high data rate is achieved by means of spatial multiplexing which uses two codewords. Spatial multiplexing is a transmission technique in wireless communication to transmit independent and separately encoded data signals. Instead of increasing diversity, multiple antennas are used in this case to increase the data rate or capacity of the system. In this paper, VLSI architecture for Layer mapping (LMSM) and Precoding (PCSM) of LTE physical data channels using Spatial multiplexing is proposed. Spatial multiplexing aims mainly for good SINR conditions when compared with transmit diversity. The performance of the proposed architecture is analyzed. It is inferred that the data rate is increased without any increase of bandwidth and power.