Performance comparison of advanced encryption standard-128 algorithms for wimax application with improved power-throughput

Worldwide interoperability for microwave access (wimax) or the ieee 802.16 standard for broadband internet access as well as metro-wide wireless sensor network (wsn) communication,continues to gain popularity as a technology with a significant market potential. this development makes wireless security a very serious concern. advanced encryption standard (aes) has been widely used for protection in wimax applications. this study focuses on the performance comparison of aes algorithms with 128-bit cipher key using field programmable gate array (fpga) in terms of architectural,throughput differences,and power consumption rates. different aes-128 designs,including the proposed improved power-throughput aes-128 design,are introduced and evaluated. xilinx virtex2 and virtex5 fpgas are utilized for implementation and verification purposes. results show that with virtex2 and virtex5 fpgas,the design core of the proposed aes-128 is the smallest with reduced slices up to 47%,and the throughput is increased by 90% compared with the reference designs. the proposed design also reduces total power consumption by 6% through virtex5 fpga. © school of engineering,taylor’s university.