Joint User Activity Identification and Channel Estimation for Grant-Free NOMA: A Spatial-Temporal Structure-Enhanced Approach.
Liantao WuPeng SunZhibo WangYang YangPublished in: IEEE Internet Things J. (2021)
Keyphrases
- temporal structure
- user activity
- channel estimation
- spatio temporal
- temporal relations
- communication systems
- temporal relationships
- user behavior
- multipath
- ofdm system
- video data
- online social networks
- fading channels
- human activities
- spatial relations
- spatial data
- social networks
- spatial information
- estimation algorithm
- social media
- spatial relationships
- bit error rate
- wireless communication
- search engine
- end to end
- bag of features
- image retrieval
- image sequences
- computer vision