Convolutional Neural Networks for Space-Time Block Coding Recognition
This work addresses radio modulation and coding recognition for noncooperative spectrum monitoring, but it is incremental as it adapts existing convolutional neural networks to a specific task.
The paper tackled the problem of identifying space-time block coding in signals without prior channel or noise information, achieving good performance at low signal-to-noise ratios.
We apply the latest advances in machine learning with deep neural networks to the tasks of radio modulation recognition, channel coding recognition, and spectrum monitoring. This paper first proposes an identification algorithm for space-time block coding of a signal. The feature between spatial multiplexing and Alamouti signals is extracted by adapting convolutional neural networks after preprocessing the received sequence. Unlike other algorithms, this method requires no prior information of channel coefficients and noise power, and consequently is well-suited for noncooperative contexts. Results show that the proposed algorithm performs well even at a low signal-to-noise ratio