Simulation and Analysis of Different Configurations of Demultiplexer Chips for Digital Electronics and Communications

Current digital communication systems need systems with high throughput, low latency, and hardware‐efficient structures that can scale with the growing complexity of data. Multiplexing and demultiplexing methods are crucial for meeting these requirements as they allow more than one data stream to be transmitted using the same channel. Demultiplexers′ design and implementation can be studied based on scalability, hardware efficiency, and timing aspects for various FPGA platforms. This paper introduces the hardware architecture of demultiplexer structures from (1 × 2) to (1 × 64) in the realm of reconfigurable computing. In this study, the architectures are designed with VHDL in Xilinx ISE 14.7 and tested via behavioural simulation, RTL synthesis and hardware resource estimation on various FPGA platforms. The novelty of the paper is presented in the scalability analysis of demultiplexer architectures through the linear growth in the number of logic resources utilised as the output dimension increases in different FPGA families. Main performance metrics like propagation delay, slice utilisation, LUTs and I/O are measured and compared for Virtex 5, Virtex 6, Spartan 3E and Spartan 6 FPGAs. It is shown that the proposed demultiplexer architecture scales well in the number of resources required and has no overhead, which makes the design scalable and suitable for implementation of large‐scale routing circuits. Modern FPGA architectures have shown great improvement in terms of timing without any resource overhead, thus being more advantageous for high‐speed computing systems. This paper makes a comparative analysis of the scalability of the selected Xilinx FPGA families and allows resource and timing analysis of the large‐scale demultiplexers from (1 × 2) to (1 × 64).