Cover -- Guest editorial -- Efficient VLSI architecture for FIR filter design using modified differential evolution ant colony optimization algorithm -- Optimized DA-reconfigurable FIR filters for software defined radio channelizer applications -- Grid - connected operation and performance of hybrid DG having PV and PEMFC -- High speed data encryption technique with optimized memory based RSA algorithm for communications -- A 10-bit 200 MS/s pipelined ADCwith parallel sampling and switched op-amp sharing technique -- Orthogonal mode dual band MIMO antenna system for 5G smartphone applications using characteristic mode analysis -- Design and implementation of artificial magnetic conductor surface as decoupling structure in microstrip antenna arrays.