Performances of LEON3 IP Core in WiGig Environment on Receiving Side

摘要

WiGig is incorporating in the group of wireless standards which tend to release users from being tethered to their devices. It employs 60 GHz frequencies to achieve transfer rate up to 7 Gbps, ten times faster than current fastest Wi-Fi network based on IEEE 802.11n. This new standard, labeled as 802.11ad is an exclusive technology for instant data transfer. Higher frequencies allow higher data rates, which leads to inter symbol interference problem. This obstacle in WiGig is exceeded by employing OFDM modulation technique elaborated in this paper, with attention focused on receiver-what are the limitations, appropriate transfer synchronization and utilization of FFT required for signal demodulation. LEON3 processing core is a synthesized VHDL model of 32-bit processor compliant with SPARC V8 architecture. The purpose of this paper is to determine the efficiency of this type of IP core in WiGig environment, by testing LEON3s' performances on algorithms for FFT implementation, since modulation is the essential factor in OFDM deployment. An effort was made to discover an optimal algorithm (with features obedient to the 802.1 lad requirements) which escalates LEON3 IP Core performances for receiving side.