Signal Separation and Reconstruction Method for Simultaneously Received Multi-System Signals in a Unified Wireless System
These days, a wide variety of wireless systems are used and new wireless systems appear one after another on the market. In this paper, the authors proposed a unified wireless system that they call "Flexible wireless system". Comprising flexible access points and a flexible signal processing unit, it collectively receives a wideband spectrum that includes multiple signals from various wireless systems. In cases of simultaneous multiple signal reception, however, reception performance degrades due to the interference among multiple signals. To address this problem, they propose a new signal separation and reconstruction method for spectrally overlapped signals.