This paper presents a software-based implementation for the MIMO transmitter baseband processing conforming to the IEEE802.11ac standard on a DSP core with vector extensions. The transmitter is implemented in four different transmission scenarios, which include 2×2 and 4×4 MIMO configurations, yielding beyond 1Gbps transmit bit rate. The implementation is done for the frequency-domain processing and real-time operation has been achieved when running at a clock frequency of 500MHz. The proposed software solution is evaluated in terms of power consumption, number of clock cycles and memory usage. This SDR based implementation provides improved flexibility and reduced design effort compared to conventional approaches while maintaining energy consumption close to fixed-function hardware solutions.
In this paper, a software-based implementation for the Multiple Input and Multiple Output (MIMO) receiver baseband processing conforming to the IEEE 802.11ac standard on a DSP core with vector extensions is presented. The implementation is carried out for different operation points including 2×2 and 4×4 MIMO configurations, yielding beyond 1Gbps transmission bit rate. This implementation mainly focuses on the frequency domain processing of the receiver. The presented solution is evaluated in terms of number of clock cycles and power consumption, and the feasibility of a real-time operation is then addressed and analyzed. If found feasible, such Software Defined Radio based solutions offer more flexibility and reduced time-to-market-cycles compared to the conventional solutions using fixed-function hardware platforms.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.