C
Congzheng Han
Researcher at Chinese Academy of Sciences
Publications - 65
Citations - 1444
Congzheng Han is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Scheduling (computing) & MIMO. The author has an hindex of 12, co-authored 52 publications receiving 1121 citations. Previous affiliations of Congzheng Han include Henan University of Science and Technology & University of Bristol.
Papers
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Proceedings ArticleDOI
Link Adaptation Performance Evaluation for a MIMO-OFDM Physical Layer in a Realistic Outdoor Environment
TL;DR: A downlink performance analysis of a link adaptation (LA) algorithm applied to a MIMO-OFDM physical layer (PHY) which is a popular candidate for future generation cellular communication systems is presented.
Proceedings ArticleDOI
Power Efficient MIMO Techniques for 3GPP LTE and Beyond
TL;DR: This paper attempts to show that an efficient exploitation of multiple antenna techniques and multiuser diversity in both the time, frequency as well as the space domain can significantly ease the power requirements of a base station, whilst maintaining the same levels of service.
Journal ArticleDOI
A New Multiple-Symbol Differential Detection Strategy for Error-Floor Elimination of IEEE 802.15.4 BPSK Receivers Impaired by Carrier Frequency Offset
Gaoyuan Zhang,Gaoyuan Zhang,Gaoyuan Zhang,Congzheng Han,Baofeng Ji,Baofeng Ji,Congyu Shi,Ping Xie,Ling Yang +8 more
TL;DR: Simulation results demonstrate that this new detection strategy may achieve rather more encouraging gain from differential and spread spectrum coding than the conventional single differential coherent detection (SDCD) scheme.
Proceedings ArticleDOI
Random Beamforming OFDMA for Future Generation Cellular Communication Systems
TL;DR: A downlink performance analysis of a layered random beamforming - MIMO-OFDMA physical layer (PHY) as applicable to future generation wireless communication systems and the design and performance of the system are proposed and evaluated by software simulation.
Journal ArticleDOI
Implementation-Friendly and Energy-Efficient Symbol-by-Symbol Detection Scheme for IEEE 802.15.4 O-QPSK Receivers
TL;DR: An implementation-friendly and energy-efficient symbol-by-symbol detection scheme for IEEE 802.15.4 offset-quadrature phase shift keying (O-QPSK) receivers is investigated and shows that only 4 preamble symbols is sufficient for accurate CFO estimation.