4 papers · 1 filter
Iterative Equalization of CPM With Unitary Approximate Message Passing
Zilong Liu, Yi Song, Qinghua Guo +3
Continuous phase modulation (CPM) has extensive applications in wireless communications due to its high spectral and power efficiency. However, its nonlinear characteristics pose s…
Hybrid Message Passing-Based Detectors for Uplink Grant-Free NOMA Systems
Yi Song, Yiwen Zhu, Kun Chen-Hu +3
This paper studies improving the detector performance which considers the activity state (AS) temporal correlation of the user equipments (UEs) in the time domain under the uplink…
Message Passing Based Structured Sparse Signal Recovery for Estimation of OTFS Channels with Fractional Doppler Shifts
Fei Liu, Zhengdao Yuan, Qinghua Guo +2
The orthogonal time frequency space (OTFS) modulation has emerged as a promising modulation scheme for high mobility wireless communications. To enable efficient OTFS detection in…
Joint Channel-Estimation/Decoding with Frequency-Selective Channels and Few-Bit ADCs
Peng Sun, Zhongyong Wang, Robert W. Heath +1
We propose a fast and near-optimal approach to joint channel-estimation, equalization, and decoding of coded single-carrier (SC) transmissions over frequency-selective channels wit…