Multiuser Receiver Scheme with SIC for PUCCH in High Speed Train Environment

• 作者: Guangliang Ren Wei Wang
• 来源期刊: 通讯与网络(英文)
• 学科: 工学
• 关键词: PUCCH Successive INTERFERENCE CANCELLATION High SPEED TRAIN MULTIUSER
• 年，卷（期）: 2013,（3）
• 页码范围: 308-311
• 页数: 4页
• 分类号: TN92

摘要

A multiuser receiver scheme with successive interference cancellation (SIC) is proposed to suppress multiuser interference for physical uplink control channel (PUCCH) in high speed train (HST) environment. In the proposed algorithm, each user’s signal is detected iteratively in a descending order according to the signal strength at eNB. During each iteration, the strongest signal of all users’ is detected and regenerated, and then is subtracted from the composite signal before decoding the next user. Simulation results show that the proposed scheme obtains remarkable gains, e.g. 2 dB for PUCCH format 2 with 3 users in HST scenario 1. The improvement is more pronounced in the case of increasing number of users, e.g. 3.3 dB with 6 users.