Optimization of parallel processing intensive digital front-end for IEEE 802.11ac receiver
Juha Yli‐Kaakinen, Toni Levanen, Mona Aghababaeetafreshi, Markku Renfors, Mikko Valkama · 2016
Modern computing platforms offer increasing levels of parallelism for the fast execution of different signal processing tasks. In this paper a digital front-end concept is developed, where the parallel processing is utilized for dividing the inherent structure of IEEE 802.11ac waveform to two or more parallel signals and by processing the resulting signals further e.g, using legacy IEEE 802.11n digital receiver chains. Two multirate channelization architectures are developed with the corresponding filter coefficient optimization. The full radio link performance simulations with commonly adopted indoor WiFi channel profiles are provided, verifying the overall link performance with the proposed channelization architectures.