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Articles by Feng Xingle
Total Records ( 2 ) for Feng Xingle
  Liu Zunxiong , Xu Zheng , Feng Xingle and Lu Zhaogan
  In current 4G system given in recent literatures, channel estimation overhead and complexity of Multi-User Detectors (MUD), may lead to bad performance in fast fading channel scenarios when large number of users exists. So, a novel 4G system with TDD/TDMA as duplex and wireless access is designed to reduce channel estimation spending and avoid MUD, as only one user can be active to communicate with base station. Under the requirement of 4G systems, radio frame structure is elaborately designed to fit for fast fading channel scenarios. The system architecture with consideration of link adaptations for a novel eigenmodes coupled universal space-time codes, is given and evaluated for performance of TDD/TDMA 4G systems. Results show the proposed TDD/TDMA 4G can meet the requirement of 4G system under the classical ITU channel profiles.
  Feng Xingle , Cheng Yan , Chen Peng and Quan Nana
  Due to coordination of performance and complexity in multiple-input multiple-output system at the same time, this paper proposes a group interference suppression detection algorithm sphere decoding ordered successive interference cancellation (SD-OSIC) based on adaptive modulation. It adopts the strategy of group detecting, the signal with high Signal to Noise Ratio (SNR) is detected by Sphere Decoding (SD) algorithm instead of the maximum likelihood one and the rest of the signal is detected by Ordered Successive Interference Cancellation (OSIC). Nevertheless, it also takes the receiving SNR as a parameter to modulate the transmitting signal adaptively. The simulation results show that the SD-OSIC detection based on adaptive modulation can achieve higher spectrum efficiency than fixed modulation as well as having a performance.
 
 
 
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